Book of Abstracts from the International Workshop on Positron Studies of Defects 2024 (PSD-24)

Edited by

Prof. Rafael Ferragut, Dr. Javier Schmidt, Prof. Bernardo Barbiellini, Mr. Matías Bayo, Mr. Matteo Vicini and Dr. Claudio Conci

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Scientific Books of Abstracts, Vol. 4, pp -1-0

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-09

Online:
2024-08-23

Preface

Following the long tradition that started in 1987, the International Workshop on Positron Studies of Defects 2024 (PSD-24) will be held in Como, Italy, in the period from September the to , 2024. The aim of the workshop is to provide an opportunity for exchange of the latest results and scientific information concerning the positron interactions with solids and surfaces, the generation of slow positron beams and their applications.

The aims of this workshop are to bring together scientists who are interested in studying mainly defects in materials for various applications and to provide an international platform presenting and discussing recent results and achievements on new experimental and theoretical methods in this field. On this occasion scientists will be invited to participate in a half-day conference on other positron adjacent topics applied to Biology and fundamental Physics.

Main Topics

Positron studies of defects in semiconductors, metal, oxides, etc. (bulk materials)

Positron studies of defects in complex and/or layered materials

New experimental methodologies and equipment

Theoretical calculations and simulations of momentum distributions, positron lifetime and other characteristics for defects

Positron studies of defects in combination with complementary methods

Positron beam studies of defects at surfaces, interfaces, in sub-surface regions and thin films

Nanostructures and amorphous materials

Invited topics: Biological systems & Antimatter fundamental studies

Applications/developments

Positron annihilation spectroscopy is used to develop new materials and new areas of study such as:

Metal and metal alloys

Semiconductors

Oxides

Nanostructures and amorphous materials

Solar cells

Lithium and sodium-ion batteries

New challenges on Biological systems and fundamental Physics (in this edition)

Committee

International Advisory Committee:

Jakub Čížek (Czech Republic)

Christoph Hugenschmidt (Germany)

Andreas Wagner (Germany)

Henk Schut (Netherland)

Filip Tuomisto (Finland)

Peter Mascher (Canada)

Farida Selim (USA)

Reinhard Krause-Rehberg (Germany)

Local Organizing Committee:

Rafael Ferragut - Chairman (Politecnico di Milano, Italy)

Bernardo Barbiellini (LUT University, Finland)

Claudio Conci (Politecnico di Milano, Italy)

Paola Folegati (Politecnico di Milano, Italy)

Javier Schmidt (CONICET and Universidad Nacional del Litoral, Argentina)

Matías Bayo (Politecnico di Milano, Italy)

Alberto Galanti (Politecnico di Milano, Italy)

Matteo Vicini (Politecnico di Milano, Italy)

Meiying Zheng (Politecnico di Milano, Italy & LUT University, Finland)

Xin Li, (LUT University, Finland & Politecnico di Milano, Italy)

Sponsors

Financial Sponsorship

TechnoAP

BERTHOLD

Institutional Sponsorship

POLITECNICO
MILANO 1863
FONDAZIONE ALESSANDRO
VOLTA
CULTURA EDUCAZIONE CIVITAS

Programme Overview

Table of Contents

Preface

Monday, September 2nd - Techniques Session

Survey of Defects in Some Spintronics Materials by Spin-Polarized Positrons

Atsuo Kawasuso

Experiments on Positron Moderation Efficiency of Tungsten Using a Magnetic-Bottle Trap

A.B. Serban

Monday, September 2nd - Semiconductors Session

Detection and Identification of Vacancy Defects in Antimony Selenide

David J. Keeble

Point Defects in GaN Single Crystals and Thin Films

Jakub Čížek

Impact of Proton Irradiation on Donor Centers in Silicon for Quantum Technologies in Space: Challenging Issues in Identifying of Point Defects

Nikolai Yu. Arutyunov

Monday, September 2nd - Perovskites Session

Evidence of Different Positron Annihilation Quantum States in Methylammonium Lead lodide Depending on Preparation

Catherine Corbel

Lifetime Spectroscopy Experiments and Ab-Initio Calculations on Single Crystalline

Javier Schmidt

The Nature of the Bulk Defect Formation for Photonic Annealed FAPbl3 Halide Perovskite Thin-Film

S. Sanchez

Vacancy Defects in Hybrid Metal Halide Perovskites

A. Singh

Monday, September 2nd - Irradiated Materials / Metals and Alloys Session

Vacancy Defects Distribution in Self-lon Irradiated Molybdenum

Zhiwei Hu

Slow Positron Beam Study of Lithium Implanted Boron Carbide

Nikolay Djourelov

Tuesday, September 3rd - Semiconductors Session

Identification and Reversible Optical Switching of NV Centers in Diamond

Marcel Dickmann

Point Defects in Ga- and B-Doped Ge

P. Amoroso

Vacancies and Dopants in Epitaxially Grown Silicon

Rafael Ferragut

Tuesday, September 3rd - Porous Materials / Liquids / Techniques Session

Influence of Environmental Conditions on Surface Groups of Zeolite-Based Molecular Sieve

G. Evans

Melting Front of Ice: What do the Positrons Can Say about It?

Sergey V. Stepanov

Development of a Slow Positron Beamline Using a LINAC

Atsushi Kinomura

Tuesday, September 3rd - Theoretical Session

Can Coincidence Doppler be Used for Surface Analysis?

Alex H. Weiss

Theoretical Study on Conformer-Dependent Positron Binding Properties of Glycine

Daisuke Yoshida

Quantum Monte Carlo Study on Positron Binding to Atomic Anion Dimers

Masanori Tachikawa

Tuesday, September 3rd - Metal Oxide / Techniques Session

Positron Annihilation Spectroscopy of La-Doped Uranium Oxide

D.V. Popov

Characterization of LiNiO2 Cathodes Using Positron Annihilation Lifetime Spectroscopy

X. Li

Coincidence Doppler Broadening Spectroscopy of Single Layer Graphene on Copper Using a Variable Energy Positron Beam

H. Mahdy

Positron Lifetime Changes in Pure Iron During Tensile Deformation and After Unloading Tensile Stress Measured by Gamma-Ray-Induced Positron Annihilation Lifetime Spectroscopy

Atsushi Yabuuchi

Wednesday, September 4th - Techniques Session

The High-Intense Pulsed Positron Source MePS - Recent Developments and Future Plans

Maik Butterling

ReMade @ ARI: Accelerating the Circular Economy through Advanced Materials Research

E. Hirschmann

Investigation of In-Flight Annihilation of Positrons Using Coincidence Doppler Broadening Spectroscopy

Leon Chryssos

Wednesday, September 4th - Bio-materials / Biology Session

Free Volume in Complex Lyophilized Formulations by Positron Lifetime Measurements

L. Chiari

Transforming Biomedical Imaging: Will Positron Annihilation Spectroscopy be the Promise of Preventive Diagnostics?

Claudio Conci

A New Approach for the Study of Cell Monolayers with Positron and Positronium Annihilation Spectroscopy Leveraging on Cell-Sheet Technology

Matteo Vicini

Dose Absorption in Living Cells During Positron and Positronium Annihilation Spectroscopy Studies

P. Folegati

Wednesday, September 4th - Metals and Alloys Session

Effect of Re on Irradiation Induced Defect Formation in W Alloys

Yasuyoshi Nagai

Operando Positron Annihilation Lifetime Spectroscopy for Defect Detection in Hydrogen Embrittled Iron

K. Yamamoto

Diffusion Kinetics of Vacancies and Self-Interstitials in Multi-Principal Elemental Alloys

Eryang Lu

Wednesday, September 4th - Metals and Alloys / Techniques Session

Microstructure Analysis of Corrosion of Zr-4 and Zr-1Nb Alloys by Positron Annihilation

Yi Chu Wu

Vacancy-Type Defects Just Below the Intergranular Fracture Surface of Pure Ni by Positron Probe Microanalyzer

H. Abe

Recent Development of New Experimental Technologies for Positron Annihilation Spectroscopy at University of Science and Technology of China

H.J. Zhang

Thursday, September 5th - Techniques / Metals and Alloys Session

Towards the Investigation of Positronium Interactions in Laser-Written Buried Microcavities with the New Bunched Positron Beam at the AntiMatter Lab of Trento

S. Mariazzi

Real Time Monitoring of Defect Evolution and Relaxation By In Situ Positron Annihilation Spectroscopy (iPAS)

Farida A. Selim

TwinPALS: A Digital Twin for Laboratory-Based Positron Annihilation Lifetime Spectroscopy

Torsten E.M. Staab

Thursday, September 5th - Metal Oxides Session

Ion Driven - to - Phase Transition and Resulting Defect Microstructure

Ilja Makkonen

Phase Transition and Structural Defects in Complex Iron-Containing Oxide Glasses Probed by Positron Annihilation

Taras Kavetskyy

Layered Structure of Amorphous PbO Photoconductive Films Revealed by Variable-Energy Positron Annihilation Spectroscopy

James Michael Gaudet

Positron Drift in the Oxide and the Depletion Region of a Metal-Oxide Silicon Device Biased to Accumulation, Depletion and Inversion

Ricardo Helm

Thursday, September 5th - Theoretical Session

Primary Thermodynamic Defects in Al+H and FeAl Systems

Jan Kuriplach

Unveiling Ultra-Fast Charging Mechanisms in Graphene-Layered Cathodes through Positron Annihilation Spectroscopy and Density Functional Theory

Mei Ying Zheng

Diffusion-Reaction Model of Positron Trapping and Annihilation for Complex Defect Pattern

P. Brunner

Thursday, September 5th - Techniques Session

Variability in FeB Pair Association Rates in Silicon under Ultrasound Loading: Effects of Acoustic Wave Types

Oleg Olikh

Positron Annihilation Spectroscopy in the H-Embrittled Iron-Based Materials

Masanori Fujinami

Poster Session - Metal Oxides

Decoupling the Interplay between Structural Defects and Luminescence Properties in Metal-Ion Co-Doped Gadolinium Vanadate

A.G. Attallah

Characterization of Defects in TiO2 Films Prepared by Pulsed Laser Deposition

Oksana Melikhova

Probing the Defects in -Substituted Bismuth Ferrite Nanocrystallites

S. Mukherjee

Positron Annihilation Lifetime Spectroscopy for the Microstructural Behavior of NIR-Driven Photocatalytic Nanoparticles

J.D. Liu

Poster Session - Perovskites

Positron Annihilation Studies of

A. Singh

Poster Session - Techniques

Upgrading the Coincidence Doppler Broadening Spectrometer at FRM II

Danny R. Russell

Lifetime Assessment Model of Positron Annihilation for the Evolution of the Relevant Defects under Fusion Environment Simulation Experiments

Vladimir Krsjak

High-Temperature Portable PAS-Oriented Sample (HIPPOS) Chamber

G. Evans

Model for Analyzing Positron-Electron Annihilation Spectra from Short Positron Bursts Containing Many Positrons

G.G. Cecchini

Micrometer Positron Beam at the Scanning Positron Microscope (SPM)

Johannes Mitteneder

Positron Annihilation in PTFE by Using PALSfit and Scilab Programs

H.A. Al-Droubi

The Time Separation Ability (FWHM) of Exponential Gaussian Function Used in Positron Annihilation

A.M. Soufan

Towards the Formation of Ps: First Stability Analysis by Using Photoelectric Effect

Matías Bayo, A. Galanti

Poster Session - Porous Materials, Polymers, Ice and Liquids

Free Volumes in Electron-Irradiated Biodegradable Polymers Using Positron Annihilation Lifetime Spectroscopy

K. Fedus

Metal Powders Study Using Conventional Positron Annihilation Spectroscopy

M.W. Halimi

Poster Session - Metals and Alloys

Onset of Vacancy Formation in Strained AI Alloys Studied by In Situ PALS

L. Mathes

The S-Phase Formation in a High-Purity Al-Cu-Mg Alloy Monitored by Truncation During Heating-Up

Torsten E.M. Staab

Defects in Materials: Limitations of the Trapping Model - The Influence of Corrupt Components in Positron Lifetime Spectra

Torsten E.M. Staab

Effect of Local Chemical Order on Vacancy Diffusion in NiCoCr Medium Entropy Alloys

Xiaoyu Gui

Keywords Index

Authors Index

Chapter 1

Monday, September 2nd - Techniques Session

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 3-3

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Survey of Defects in Some Spintronics Materials by Spin-Polarized Positrons

A. Kawasuso , , A. Miyashita , M. Maekawa , C. Suzuki , H. Amada , Y Shimoyama , N. Seko , S. Yamamoto , K. Michishio , N. Oshima , M. Suda , S. Seki , H. Murakawa , M. Komada , N. Hanasaki , J. Wang , T. Seki , R. Y. Umetsu , K. Takanashi , F. Ishii , N. Yamaguchi , N. Kanazawa

National Institute for Quantum Science and Technology, 1233 Watanuki, Takasaki, Gunma 3701292, Japan

National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan

Kyoto University, Nishikyo-ku, Kyoto-shi, Kyoto 615-8510, Japan

Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan

Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai, Miyagi 980-8577, Japan

Nanomaterials Research Institute, Kanazawa University, Kakuma, Kanazawa 920-1192, Japan

Institute of Industrial Science, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8505, Japan

*email: kawasuso.atsuo@qst.go.jp

References

A. Miyashita et al., J. Appl. Phys. 130, 225301 (2021); doi: 10.1063/5.0071807.

A. Miyashita et al., J. Phys.: Condens. Matter 34 (2022) 045701; ac3304.

A. Kawasuso et al., J. Appl. Phys. 133, 223903 (2023); doi: 10.1063/5.0147663.

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Scientific Books of Abstracts, Vol. 4, pp 4-4

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Experiments on Positron Moderation Efficiency of Tungsten Using a Magnetic-Bottle Trap

A.B.Serban , N. Djourelov

Extreme Light Infrastructure-Nuclear Physics (ELI-NP), "Horia Hulubei" National R&D Institute for Physics and Nuclear Engineering (IFIN-HH), 077125 Magurele, Ilfov, Romania.

*email: andreea.serban@eli-np.ro

Keywords: Positron beam, magnetic bottle trap, moderation efficiency, slow positrons

References

L. Gerchow, S. Braccini, et al, Instruments. 2, 10, (2018).

N. Djourelov, A.B. Serban, Nucl. Instrum. Meth. A 1014, 165699 (2021).

N. Djourelov, A.B. Serban, et al, Nucl. Instrum. Meth. A 1056168599 (2023).

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Chapter 2

Monday, September 2nd - Semiconductors Session

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 7-7

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-06

Online:
2024-08-23

Detection and Identification of Vacancy Defects in Antimony Selenide

D.J. Keeble , T.D.C. Hobson , J. Wiktor , T. Shalvey , A. Singh , M. Dickmann , W. Egger , M.O. Liedke , A. Wagner , K. Durose and J.D. Major

Physics, SUPA, School of Science and Engineering, University of Dundee, Dundee DD1 4HN, UK

Department of Physics, University of Liverpool, Liverpool L69 7ZF, United Kingdom

Department of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden

Institut für Angewandte Physik und Messtechnik, Universität der Bundeswehr München, D-85579 Neubiberg, Germany

Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400,01328 Dresden, Germany

e-mails: d.j.keeble@dundee.ac.uk, marcel.dickmann@unibw.de, werner.egger@unibw.de, dm.liedke@hzdr.de

References

[1]
X. W. Wang, S. R. Kavanagh, D. O. Scanlon and A. Walsh, Phys. Rev. B, 108134102 (2023)

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 8-8

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Point Defects in GaN Single Crystals and Thin Films

J. Čížek , O. Melikhova , P. Hruška , D. Prokop , A. Hospodková , F. Hájek , M. Leszczyński , E. Grzanka , R. Czernecki , M.O. Liedke , E. Hirschmann , M. Butterling , A. Wagner

Department of Low-Temperature Physics, Charles University, Prague, Czech Republic

Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic

Institute of High Pressure Physics "Unipress", Polish Academy of Sciences, Warsaw, Poland

Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany

*email: jakub.cizek@mff.cuni.cz

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 9-9

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Impact of Proton Irradiation on Donor Centers in Silicon for Quantum Technologies in Space: Challenging Issues in Identifying of Point Defects

N. Arutyunov , N. Abrosimov , R. Krause-Rehberg , M. Elsayed

Department of Physics, Martin Luther University, 06120 Halle, Germany

Leibtiz-Institut für Kristallzuchtung (IKZ), D-12489, Berlin, Germany

*email: n_arutyunov@yahoo.com

References

B. Wilson, A. Miloshevski, D. Hooper and N. Peters, Phys. Rev. Appl.16, 064049 (2021).

J. Logan, M. Short, P. Webster and C. Morath, IEEE Trans. Nucl. Sci. 67, 2382 (2020).

N. Arutyunov, R. Krause-Rehberg, M. Elsayed, N. Abrosimov et al., J. Phys.Condens.Mat. 33, 245702 (2021).

N. Arutyunov, M. Elsayed, R. Krause-Rehberg, V. Emtsev et al., J. Phys.Condens.Matter 25, 035801 (2013).

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Chapter 3

Monday, September 2nd - Perovskites Session

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 13-14

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Evidence of Different Positron Annihilation Quantum States in Methylammonium Lead lodide Depending on Preparation

P. Aversa , R. Helm , H. Jun , Y. Cai , H. Nahdi , P. Desgardin , D. Tondelier , J.E Bourée , S.Begin , F. Oswald , Y. Bonnassieux , T. Fisher , J. Mitteneder , M.O. Liedke , K. Madaan G. Roma , P. Pochet , J. L. Liszkay , M.Butterling , M. Dickmann , A. Wagner , M.F. Barthe , W. Egger , B. Geffroy , C. Corbel

CEA/DRF/IRAMIS, University Paris-Saclay, Gif-sur-Yvette, France

University of Bundeswehr, Munich, Germany

LPICM, Institut Polytechnique de Paris, 91128 Palaiseau

ICPEES, Université de Strasbourg, France

CEMHTI, CNRS-Orléans, France

HZDR, Germany

CEA/DRF/IriG, Univ. Grenoble-Alpes, France

CEA/ DES/ISAS/DMN/SRMP, Université Paris-Saclay, France

CEA/DRF/IRFU, Université Paris-Saclay, France

*catherine.corbel@polytechnique.edu

References

R.Wang et al Adv. Funct. Mater., 1808843, (2019)

K. Miyata, T. L. Atallah, X.-Y. Zhu, Sci. Adv. 3, e1701469 (2017)

M. Kot et al. ChemSusChem, 13, 5722-5730, (2020)

K. Madaan, (2024)

Keeble, D. J. et al. Nat. Commun. 12, 5566 (2021).

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Scientific Books of Abstracts, Vol. 4, pp 15-15

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Lifetime Spectroscopy Experiments and Ab-Initio Calculations on Single Crystalline

Javier A. Schmidt , Sergio Dalosto , Silvia Tinte , Davide Raffaele Ceratti , Daniel Chrastina , Rafael Ferragut

Instituto de Física del Litoral and Facultad de Ingeniería Química, CONICET and Universidad Nacional del Litoral, Güemes 3450, S3000GLN Santa Fe, Argentina.

PSL Research University, CNRS - Chimie ParisTech, Institut de Recherche de Chimie Paris, Physical Chemistry of Surfaces Group, 11 Rue Pierre et Marie Curie, 75005 Paris, France

L-NESS and Department of Physics, Politecnico di Milano, Via Anzani 42, I-22100 Como, Italy

*email: schmidt.javier@gmail.com

Keywords: Positron Annihilation Lifetime Spectroscopy, Halide Perovskites, Defect Identification, DFT Calculations

References

[1] I. Mesquita, L. Andrade, and A. Mendes, Renew. Sustain. Energy Rev. 82, 2471 (2018).

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 16-16

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-06

Online:
2024-08-23

The Nature of the Bulk Defect Formation for Photonic Annealed FAPbl3 Halide Perovskite Thin-Film

S. Sanchez , Y.K. Chen , M.O. Liedke , M. Butterling , A. Wagner , R. Ferragut

LPI and LIMNO labs, ISIC, EPFL, Switzerland

Institute of Radiation Physics, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany

L-NESS and Department of Physics, Politecnico di Milano, Como, Italy

rafael.ferragut@polimi.it

References

[1] S. Sanchez et al., Energy Environ. Sci., Thermally controlled growth of photoactive FAPbI 3 films for highly stable perovskite solar cells, 15, 3862-3876 (2022).

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 17-17

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-06

Online:
2024-08-23

Vacancy Defects in Hybrid Metal Halide Perovskites

A. Singh , J. Wiktor , M.O. Liedke , E. Hirshmann , A. Wagner , T.H. Nguyen , M. Saliba , Y. Lu , G. Tumen-UIzii , S.D. Stranks , Z. Shi , M. Li , J Huang and D.J. Keeble

Physics, SUPA, School of Science and Engineering, University of Dundee, Dundee DD1 4HN, UK

Department of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden

Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400,01328 Dresden, Germany

Institute for Photovoltaics, University of Stuttgart, DE-70569 Stuttgart, Germany

Department of Chemical Engineering & Biotechnology, University of Cambridge, Cambridge, CB3 0AS, UK

Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC 27599 USA

m.liedke@hzdr.de, e-mail: d.j.keeble@dundee.ac.uk

References

L. Zhao, Z. F. Shi, Y. Zhou, X. M. Wang, Y. M. Xian, Y. F. Dong, O. Reid, Z. Y. Ni, M. C. Beard, Y. F. Yan, J. S. Huang, Nat. Photon. 18, 250 (2024) ; M. Saliba, E. Unger, L. Etgar, J. S. Luo, T. J. Jacobsson, Nat. Commun. 14, 5445 (2023); K. Dey, D. Ghosh, M. Pilot, S. R. Pering, B. Roose, P. Deswal, S. P. Senanayak, P. J. Cameron, M. S. Islam, S. D. Stranks, Energy Environ. Sci. 17, 760 (2024).

D.J. Keeble, J. Wiktor, S.K. Pathak, L.J. Phillips, M. Dickmann, K. Durose, H.J. Snaith and W. Egger, Nat. Commun., 12, 5566 (2021).

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Chapter 4

Monday, September 2nd - Irradiated Materials / Metals and Alloys Session

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 21-21

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Vacancy Defects Distribution in Self-lon Irradiated Molybdenum

Zhiwei Hu , Jingtong Wu , Qigui Yang , Duc Nguyen-Manh , M.Yu. Lavrentiev , Pierre Desgardin , Jérôme Joseph , Marie-France Barthe

Keywords: Vacancies, Doppler Broadening Spectroscopy, self-irradiated Mo, Monte Carlo simulations

References

[1] J. Hou, X.-S. Kong, W. Hu, H. Deng, D. Nguyen-Manh, J. Song, Deuterium Trapping and Desorption by Vacancy Clusters in Irradiated Mo from Object Kinetic Monte Carlo Simulations, (2024). https://doi.org/10.2139/ssrn.4700194.

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 22-22

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Slow Positron Beam Study of Lithium Implanted Boron Carbide

N. Djourelov , A.B.Serban , M. Bousseksou , G. Gutierrez , D. Gosset , Y. Pipon , N. Moncoffre

Extreme Light Infrastructure-Nuclear Physics (ELI-NP), "Horia Hulubei" National R&D Institute for Physics and Nuclear Engineering (IFIN-HH), 077125 Magurele, Ilfov, Romania.

CEA, DES/SRMP JANNUS, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.

CEA, DES/SRMA LA2M, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.

IP2I, CNRS, Université Lyon 1, F-69622, Lyon, France.

*email: nikolay.djourelov@eli-np.ro

References

P. Hautojärvi, A. Dupasquier, M.J. Manninen, Positrons in Solids, Springer (1979).

M. Bousseksou, G. Gutierrez, Y. Pipon, D. Gosset, and N. Moncoffre, Journal of Nuclear Materials 582, 154490 (2023).

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Chapter 5

Tuesday, September 3rd - Semiconductors Session

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Scientific Books of Abstracts, Vol. 4, pp 25-25

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Identification and Reversible Optical Switching of NV Centers in Diamond

Marcel Dickmann , Lucian Mathes , Ricardo Helm , Vassily Vadimovitch Burwitz , Werner Egger , Johannes Mitteneder , Christoph Hugenschmidt , Peter Sperr , Maik Butterling , Maciej Oskar Liedke , Andreas Wagner , Joachim Dorner , Thomas Schwarz-Selinger , Günther Dollinger

Department for Aerospace Engineering, University of the Bundeswehr Munich, Neubiberg, Germany

Heinz Maier-Leibnitz Zentrum, Technical University of Munich, Garching, Germany School of Natural Sciences, Physics Department, Technical University of Munich, Garching bei München, Germany

Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany

Max Planck Institute for Plasma Physics, Garching bei München, Germany

*email: marcel.dickmann@unibw.de

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 26-26

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Point Defects in Ga- and B-Doped Ge

P. Amoroso , W. Särs , J. Slotte , F. Tuomisto , A. Subramanian , R.R. Sumathi , and K. Mizohata

Department of Physics, University of Helsinki, Helsinki, Finland

Department of Applied Physics, Aalto University, Espoo, Finland

Leibniz-Institut für Kristallzüchtung (IKZ), Berlin, Germany

*email: pejk.amoroso@helsinki.fi

References

[1] J. Slotte, S. Kilpeläinen, F. Tuomisto, J. Räisänen and A. Nylandsted Larsen, Phys. Rev. B. 83, 235212 (2011).

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Scientific Books of Abstracts, Vol. 4, pp 27-27

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-06

Online:
2024-08-23

Vacancies and Dopants in Epitaxially Grown Silicon

Fabio Isa , Javier A. Schmidt , Stefano Aghion , Enrico Napolitani , Giovanni Isella , Rafael Ferragut

Coherent, Binzstrasse 17, CH-8045, Zürich, Switzerland

L-NESS and Department of Physics, Politecnico di Milano, Via Anzani 42, I-22100 Como, Italy

Instituto de Física del Litoral y Facultad de Ingeniería Química, CONICET y Universidad Nacional del Litoral, Güemes 3450, S3000GLN Santa Fe, Argentina.

STMicroelectronics, Via Camillo Olivetti 2, I-20864 Agrate Brianza, Italy

Dipartimento di Fisica e Astronomia, Università di Padova and CNR-IMM, Via Marzolo 8, I-35131

Padova, Italy

*email: rafael.ferragut@polimi.it

References

C. Jacoboni, C. Canali, G. Ottaviani, A. Alberigi Quaranta, Solid-State Electr. 20, 77 (1977).

W. Bauer-Kugelmann et al., Appl. Surf. Sci. 116, 231 (1997).

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Chapter 6

Tuesday, September 3rd - Porous Materials / Liquids / Techniques Session

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Scientific Books of Abstracts, Vol. 4, pp 31-31

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Influence of Environmental Conditions on Surface Groups of Zeolite-Based Molecular Sieve

Radoslaw Zaleski , Jagoda Urban-Klaehn , George S. Evans , Robert Staub , Chuting Tsai

Institute of Physics, Maria Curie-Sklodowska University, Lublin 20-031, Poland

Energy, Environment Science & Technology, Idaho National Lab., Idaho Falls, ID 83404, USA

Nuclear Science & Technology, Idaho National Laboratory, Idaho Falls, ID 83404, USA

New Mexico Institute of Mining and Technology, Socorro, NM 87801, USA

*email: George.Evans@inl.gov

Keywords: Environmental Conditions, Molecular Sieve, Positron Annihilation Lifetime Spectroscopy (PALS), Surface Groups, Zeolites

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 32-32

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Melting Front of Ice: What do the Positrons Can Say about It?

L.I. Budaeva , I.S. Stepanov , O.A. Raznitsyn , M.V. Karpov , S.V Stepanov

NRC Kurchatov Institute, Moscow, Russia

NRNU "Moscow Engineering Physics Institute", Moscow, Russia

*email: stepanov@itep.ru

Keywords: Ice melting, Phase transition, Positron annihilation lifetime spectroscopy, Parapositronium

References

[1] I.S. Stepanov, L.I. Budaevaa, S.V. Stepanov "Estimation of the Thickness of Ice Melting Front by Studying the Kinetics of Ice Ball Melting in Air" Colloid Journal, 2024, Vol. 86, No. 3 DOI: 10.1134/S1061933X24600179

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Scientific Books of Abstracts, Vol. 4, pp 33-33

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Development of a Slow Positron Beamline Using a LINAC

A. Kinomura , Y. Kawakami , A. Yabuuchi , Q. Xu

Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori-cho, Osaka

590-0494, Japan

*email: kinomura.atsushi.3s@kyoto-u.ac.jp

Keywords: Slow positrons, LINAC

References

A. Kinomura, R. Suzuki, N. Oshima, B.E. O'Rourke, T. Nishijima and H. Ogawa, Rev. Sci. Instrum. 85, 123110 (2014).

A. Kinomura, R. Suzuki, T. Ohdaira, N. Oshima, B.E. O'Rourke and T. Nishijima, J. Phys. Conf. Series 443, 012043 (2013).

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Chapter 7

Tuesday, September 3rd - Theoretical Session

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Scientific Books of Abstracts, Vol. 4, pp 37-37

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Can Coincidence Doppler be Used for Surface Analysis?

A.H. Weiss , H. Mahdy , S. Lotfimarangloo , P.A. Sterne , R.W. Gladen , M. Rooks , P. Sau , A.R. Koymen , J. Asaadi , and V.A. Chirayath

Department of Physics, University of Texas at Arlington, Texas, USA, 76019

Lawrence Livermore National Laboratory, Livermore, USA, 94550

email: weiss@uta.edu, hany.mahdy@mavs.uta.edu

Keywords: Surface analysis, Coincidence Doppler Broadening, Theoretical modeling, Metal surface

References

[1] S. Lotfimarangloo et al., https://arxiv.org/abs/2401.00581 (2023).

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 38-38

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Theoretical Study on Conformer-Dependent Positron Binding Properties of Glycine

D. Yoshida , M. Takagi , Y. Kita , T. Shimazaki , M. Tachikawa

Department of Physics, Tohoku University, Sendai, Japan

Quantum Chemistry Division, Yokohama City University, Yokohama, Japan

*email: daisuke.yoshida.b1@tohoku.ac.jp

Keywords: Positron Annihilation Lifetime Spectroscopy, Conformational Structures, DFT Calculations, Molecular Clusters

References

Swann & Gribakin, J. Chem. Phys. 153, 184311 (2020).

Yoshida, et al., Phys. Chem.Chem. Phys. 24, 26898 (2022).

Furushima, et al., Phys. Chem. Chem. Phys. 25, 625 (2022).

Maeda, et al., Chem. Rec. 16, 2232 (2016).

Y. Sugiura, et al., J. Comput. Chem. 41, 17 (2020).

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Scientific Books of Abstracts, Vol. 4, pp 39-39

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Quantum Monte Carlo Study on Positron Binding to Atomic Anion Dimers

S. Ito , D. Yoshida , Y. Kita , T. Shimazaki and M. Tachikawa

Graduate School of NanoBioScience, Yokohama City University, Yokohama, Japan

Department of Physics, Tohoku University, Sendai, Japan

*email: tachi@yokohama-cu.ac.jp

Keywords: Positron Binding, Quantum Monte Carlo, Anion Dimers, Hartree-Fock

References

J. Charry, et al., Angew. Chem. Int. Ed. 57, 8859 (2018).

S. Ito, et al., J. Chem. Phys.157, 224305 (2020).

S. Ito, et al., J. Chem. Phys. 158, 204303 (2023).

D. Bressanini, J.Chem. Phys. 154, 224306 (2021).

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Chapter 8

Tuesday, September 3rd - Metal Oxide / Techniques Session

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Scientific Books of Abstracts, Vol. 4, pp 43-43

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-06

Online:
2024-08-23

Positron Annihilation Spectroscopy of La-Doped Uranium Oxide

D.V. Popov , J. Lomonaco , M.L. Amany , P. Desgardin , J. Joseph , A. Canizarès , P. Simon , M.F. Barthe

CNRS, Université d'Orléans, CEMHTI UPR 3079, 45071 Orléans, France

*email: daniil.popov@cnrs-orleans.fr, d.vs.popov@gmail.com

Keywords: Positron annihilation spectroscopy, Doppler broadening, Uranium dioxide, La doping, Stoichiometry, Oxidation

References

H. Labrim, M.-F. Barthe, P. Desgardin, et al. Applied Surface Science 252 (2006) 32563261.

M. -F. Barthe, H. Labrim, A. Gentils et al. Physica Status Solidi (c) 4 (2007) 3627-3632. . 200675752.

Y. Ma, A study of point defects in UO2+x and their impact upon fuel properties, Université d'Aix-Marseille, 2017.

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Scientific Books of Abstracts, Vol. 4, pp 44-44

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-06

Online:
2024-08-23

Characterization of LiNiO2 Cathodes Using Positron Annihilation Lifetime Spectroscopy

X. , R. Ferragut , V. Kothalawala , M.Y. Zheng , U. Lassi , J. Välikangas , P. Laine , M. O. Liedke , M. Butterling , A. Wagner , B. Barbiellini

L-NESS and Department of Physics, Politecnico di Milano, Como, Italy

School of Engineering Science, LUT-University, Lappeenranta, Finland

INFN Milano unit, National Institute for Nuclear Physics, Milano, Italy

Research Unit of Sustainable Chemistry, University of Oulu, Oulu, Finland

Institute of Radiation Physics, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany

Department of Physics, Northeastern University, Boston, USA

emails: xin.li@lut.fi, rafael.ferragut@polimi.it, meiying.zheng@polimi.it, m.liedke@hzdr.de, m.butterling@hzdr.de, Bernardo.Barbiellini@lut.fi

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Scientific Books of Abstracts, Vol. 4, pp 45-45

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Coincidence Doppler Broadening Spectroscopy of Single Layer Graphene on Copper Using a Variable Energy Positron Beam

H. Mahdy , V.A. Chirayath , S. Lotfimarangloo , R.W. Gladen , J. Driscoll , M. Chrysler , A.J. Fairchild , P.A. Sterne , A.R. Koymen , and A.H. Weiss

Department of Physics, University of Texas at Arlington, Texas, USA, 76019

Lawrence Livermore National Laboratory, Livermore, USA, 94550

*email: hany.mahdy@mavs.uta.edu

Keywords: Coincidence Doppler Broadening, Positron Beam, Single Layer Graphene, Surface Trapping

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 46-46

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Positron Lifetime Changes in Pure Iron During Tensile Deformation and After Unloading Tensile Stress Measured by Gamma-Ray-Induced Positron Annihilation Lifetime Spectroscopy

A. Yabuuchi , R. Awaji , H. Abe , T. Hirade , M. Fujinami , N. Oshima , Y. Taira

Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori, Japan

Department of Applied Chemistry and Biotechnology, Chiba University, Chiba, Japan

Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Tokai, Japan

National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan

UVSOR Synchrotron Facility, Institute for Molecular Science, Okazaki, Japan

*email: yabuuchi@rri.kyoto-u.ac.jp

Keywords: In-situ tensile deformation, Fe, vacancies, Positron Annihilation Lifetime Spectroscopy, gamma-ray-induced positrons

References

Y. Taira et al., Rev. Sci. Instrum. 93, 113304 (2022).

H. Ota et al., J. Phys.: Conf. Ser. 2380, 012003 (2022).

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Chapter 9

Wednesday, September 4th - Techniques Session

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Scientific Books of Abstracts, Vol. 4, pp 49-49

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

The High-Intense Pulsed Positron Source MePS - Recent Developments and Future Plans

M. Butterling , E. Hirschmann , M.O. Liedke , A.G. Attallah and A. Wagner

Institute of Radiation Physics, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany

Physics Department, Faculty of Science, Minia University

emails: m.butterling@hzdr.de, e.hirschmann@hzdr.de, m.liedke@hzdr.de, a.elsherif@hzdr.de

Keywords: Lifetime Spectroscopy, Positron Annihilation, LINAC, Defects

References

F. Gabriel, et al., Nucl. Instr. Meth. B, 161, 1143 (2000).

A. Wagner et al., AIP Conference Proceedings, 1970, 040003 (2018).

E. Hirschmann et al., JINST, 16, P08001 (2021).

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Scientific Books of Abstracts, Vol. 4, pp 50-50

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

ReMade @ ARI: Accelerating the Circular Economy through Advanced Materials Research

E. Hirschmann , M. Butterling , M.O. Liedke , A.G. Attallah and A. Wagner

Institute of Radiation Physics, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany

Physics Department, Faculty of Science, Minia University

emails:

Keywords: Recyclable materials, circular economy

References

[1] https://remade-project.eu/

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Scientific Books of Abstracts, Vol. 4, pp 51-51

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Investigation of In-Flight Annihilation of Positrons Using Coincidence Doppler Broadening Spectroscopy

L. Chryssos , C. Hugenschmidt

Heinz Maier-Leibnitz Zentrum (MLZ), Technical University of Munich, Lichtenbergstr. 1, 85748

Garching, Germany

*email: leon.chryssos@frm2.tum.de, Christoph.Hugenschmidt@frm2.tum.de

Keywords: Doppler Broadening, Coincidence Doppler Broadening, In-Flight Annihilation, Defects

References

J. Čížek, M. Vlček, I. Procházka, Nuclear Inst. and Meth. A, 623 (2010).

L. Chryssos, C. Hugenschmidt, draft currently work in progress.

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Chapter 10

Wednesday, September 4th - Bio-materials / Biology Session

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Scientific Books of Abstracts, Vol. 4, pp 55-55

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Free Volume in Complex Lyophilized Formulations by Positron Lifetime Measurements

L. Chiari , Y. Shiga

Department of Applied Chemistry and Biotechnology, Chiba University, Chiba, Japan

*email: luca.chiari@chiba-u.jp

Keywords: Positron Annihilation Lifetime Spectroscopy, lyophilized formulations, free volume, molecular mobility, freeze-drying

References

B. Wang, et al., J. Pharm. Sci. 99, 683 (2009).

N. Chieng, et al., Eur. J. Pharm. Biopharm. 85, 197 (2013).

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Scientific Books of Abstracts, Vol. 4, pp 56-56

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Transforming Biomedical Imaging: Will Positron Annihilation Spectroscopy be the Promise of Preventive Diagnostics?

Claudio Conci

Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, P.zza L. da Vinci, 32, 20133 Milan, Italy

claudio.conci@polimi.it

Keywords: Living cells, Intravital Imaging, Positronium, Positron Annihilation Lifetime Spectroscopy, Coincidence Doppler Broadening

Acknowledgements

Matteo Vicini, Paola Folegati, Chiara Martinelli, Manuela Raimondi & Rafael Ferragut. ERC, project BEACONSANDEGG, G.A. 101053122; MUR, call PNRR 118, project INFLAMMATRON, D43C23002400008

References

H. Karimi, et al., Sci. Rep. 2023, 13, 7648.

P. Moskal, et al., First positronium image of the human brain in vivo, Radiology and Imaging, 2024.

S. D. Bass, S. Mariazzi, P. Moskal, E. Stępień, Rev. Mod. Phys. 2023, 95, 021002.

M. T. Raimondi, et al., Theranostics 2020, 10, 7034.

C. Conci, et al., APL Bioeng. 2024, 8, 016102.

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Scientific Books of Abstracts, Vol. 4, pp 57-57

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-06

Online:
2024-08-23

A New Approach for the Study of Cell Monolayers with Positron and Positronium Annihilation Spectroscopy Leveraging on Cell-Sheet Technology

M. Vicini , N. Carbonetti , C. Martinelli , P. Folegati , M.T. Raimondi , C. Conci & R. Ferragut

Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32-20133, Milan, Italy

Department of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32 - 20133, Milan, Italy

a*email: claudio.conci@polimi.it, email: rafael.ferragut@polimi.it

Abstract

Positron and Positronium annihilation spectroscopy (PPAS) is an important method for analyzing the properties of materials, in particular for identifying defects such as vacancies and voids. There are different complementary positron spectroscopic techniques that can be employed for this purpose, which differ in the -rays detection and the performed analysis. Two such methods include Positron Annihilation Lifetime Spectroscopy (PALS) and Coincidence Doppler Broadening Spectroscopy (CDB) [1]. In recent years, a strong interest for the use of PPAS in medicine raised due to its non-invasive and non-destructive nature, reaching the milestone of the identification of different positron and positronium lifetimes using PALS depending on cell type and oxygen concentration [2]. While previous studies used 3D tissue samples, it is vital to recognize their high complexity due to the various fluids and substances included, which makes it difficult to clearly attribute the observed differences. In contrast, our approach proposes a 2.5D environment, such as tiles of cell monolayers, which allow for precise localization of positrons. Thus, we advocate a novel examination method using multiple cell monolayers, created using cell sheet technology [3]. The cells will organize into a monolayer after 14 days of culture, and then a switch in temperature from to room temperature will trigger their detachment from a sol-gel substrate after minutes. The cellular layer will then be transferred to a silicon nitride ( SiNx ) membrane for measures with a variable energy positron beam, which offers the possibility to adjust the implantation energy and thus controlling at which depth of the thin sample (micrometric thickness) the annihilation events occur. This opens the possibility for the in-situ and in-depth profiling of the monolayer. To effectively identify and separate the monolayer's contribution from other substances present during spectroscopy measures, PALS and CDB are performed on the liquids that are in direct contact with the cells (cell culture medium, Phosphate Buffered Saline solution with , etc.), using a radioactive source with an activity of sealed between two Kapton foils, each thick, in direct contact with two identical samples of the liquid of interest. This will open the possibility to recognize different cell populations by PPAS, or even recognize different monolayer structural conditions. Utilizing this technique on biological samples has the potential to open new possibilities in medicine. Specifically, it could enable early disease detection in tissues and organs by analyzing positron annihilation and positronium formation.

Acknowledgements

ERC, project BEACONSANDEGG, G.A. 101053122; MUR, call PNRR 118project INFLAMMATRON, D43C23002400008

References

D. Gidley et al., Annual Review of Materials Research, 36(1), 49-79 (2006).

H. Karimi et al., Scientific Reports, 13(1) (2023).

Yamato, M., & Okano, T., Materials Today, 7(5), 42-47 (2004).

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Scientific Books of Abstracts, Vol. 4, pp 58-58

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Accepted:
2024-08-06

Online:
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Dose Absorption in Living Cells During Positron and Positronium Annihilation Spectroscopy Studies

P. Folegati

Department of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32 - 20133, Milan, Italy

e-mail: paola.folegati@olimi.it

References

P. Hautojärvi, C. Corbel. Positron Spectroscopy of Defects in Metals and Semiconductors, pages 491-572, (1995)

V. M. Byakov, S. V. Stepanov, The mechanism for the primary biological effects of ionizing radiation, Physics - Uspekhi 49 (5) (2006)

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Chapter 11

Wednesday, September 4th - Metals and Alloys Session

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Scientific Books of Abstracts, Vol. 4, pp 61-61

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Accepted:
2024-05-30

Online:
2024-08-23

Effect of Re on Irradiation Induced Defect Formation in W Alloys

Y. Nagai , T. Toyama , Z. Zhang , K. Inoue , A. Kinomura Y. Hatano

Institute for Materials Research, Tohoku University, Oarai, Ibaraki 311-1313, Japan

Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori, Osaka 590-0494, Japan

Hydrogen Isotope Research Center, University of Toyama, Toyama 930-8555, Japan

*email: yasuyoshi.nagai.e2@tohoku.ac.jp

Abstract

W is a primary candidate material for the plasma-facing components of fusion reactors owing to its high melting temperature, high-temperature strength, good thermal conductivity, low sputtering yield, and low tritium retention [1]. Regarding tritium retention, however, it is reported that the retention increases significantly after irradiation [2]. This is attributed to the hydrogen isotope trapping at irradiation-induced defects (vacancies and/or vacancy clusters), which is shown by our recent studies using positron annihilation spectroscopy and thermal desorption spectroscopy [3]. In neutron irradiated W, the transmuted Re atoms are also produced as well as irradiation- induced defects. The Re atoms form the clusters in W, which affects the mechanical properties. On the other hand, it is reported that neutron irradiated shows the lower retention than pure W [4], which suggests that the hydrogen isotope retention can be suppressed by the Re addition in W. This phenomenon is interpreted theoretically that the reduction of the interstitial diffusion by the presence of Re atoms results in the enhancement of recombination probability of vacancies and interstitials [5]. However, it is not fully understood yet.

References

H. Bolt et al., J. Nucl. Mater. 307-311 (2002) 43-52.

Y. Hatano et al., Mater. Trans., 54 (2013) 437-441.

T. Toyama et al., J. Nucl. Mater., 499 (2018) 464-470

Y. Nobuta et al., J. Nucl. Mater., 566 (2022) 153774.

T. Suzudo et al., Sci. Rep., 6 (2016) 36738.

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Scientific Books of Abstracts, Vol. 4, pp 62-62

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2024-05-30

Online:
2024-08-23

Operando Positron Annihilation Lifetime Spectroscopy for Defect Detection in Hydrogen Embrittled Iron

K. Yamamoto , A. Matsuno , M. Fujinami

Dept. of Chemistry & Biochemistry, Chiba University, Chiba, Japan

*email: 23wm2448@student.gs.chiba-u.jp

Keywords: Positron Annihilation Lifetime Spectroscopy, Vacancy-hydrogen, Hydrogen Embrittlement

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Scientific Books of Abstracts, Vol. 4, pp 63-63

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Diffusion Kinetics of Vacancies and Self-Interstitials in Multi-Principal Elemental Alloys

E. Lu , K. Mizohata , S. Huang , F. Tuomisto

Department of Physics, University of Helsinki, Helsinki, Finland

Department of Physics, Dalian University of Technology, Dalian, China

*email: eryang.lu@helsinki.fi

Keywords: Ni based alloys, irradiation-induced defects, annealing, Positron Annihilation Spectroscopy

References

E.P. George, D. Raabe, and R.O. Ritchie, Nat. Rev. Mater. 4, 515-534 (2019).

J. W. Yeh et al., Adv. Eng. Mater. 6, 299-303 (2004).

J. Heikinheimo, K. Mizohata, and F. Tuomisto et al., APL Mater. 7, 021103 (2019).

E. Lu, J. Zhao, and F. Tuomisto et al., Acta. Mater. 215, 117093 (2021).

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Chapter 12

Wednesday, September 4th - Metals and Alloys / Techniques Session

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Scientific Books of Abstracts, Vol. 4, pp 67-67

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2024-05-30

Online:
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Microstructure Analysis of Corrosion of Zr-4 and Zr-1Nb Alloys by Positron Annihilation

Yichu Wu , Wenzeng Zhao , Qiwei Quan , Simin Zhang , Xuanye Yang , Haiyi Wen , Xiangbing Liu , Xingzhong Cao , Baoyi Wang

School of Physics and Technology, Hubei Key Laboratory of Nuclear Solid State Physics, Wuhan University, Wuhan 430072, People's Republic of China

Centre of Plant Life Management, Suzhou Nuclear Power Research Institute, Suzhou 215004, People's Republic of China

Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China

*email: ycwu@whu.edu.cn

Keywords: Microstructure, Zr alloys, Positron Annihilation, Xe20+ irradiation, post-irradiation corrosion

Abstract

The microstructure evolution of irradiation and the corrosion behavior of postirradiation in and alloys at room temperature and high temperature ( ) have been investigated. Positron results showed that vacancy defects and precipitates are produced in and alloys after irradiation, and less vacancy defects, such as vacancies and vacancy clusters, are formed at irradiation than at room temperature irradiation, resulting in lower parameters due to recombination of defects. The nanoindentation results found that both vacancy defects and precipitates produced by irradiation lead to the hardening of both and alloys. The corrosion weight gain tests showed that the damage layer induced by irradiation accelerates the oxidation rate of the corrosion process. Compared to the Zr -4 alloy, the damage layer of alloy contains more vacancy defects and precipitates after room temperature irradiation, which correspond to the higher hardness increase and the faster corrosion weight gain, resulting in the formation of cracks in oxide films as is observed by SEM. At the early stage of the corrosion, the postirradiation corrosion resistance of alloy is better than that of alloy.

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Scientific Books of Abstracts, Vol. 4, pp 68-68

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Vacancy-Type Defects Just Below the Intergranular Fracture Surface of Pure Ni by Positron Probe Microanalyzer

H. Abe , K. Michishio , N. Oshima , M. Fujinami

Dept. of Chemistry & Biochemistry, Chiba University, Chiba, Japan

AIST, Tsukuba, Japan

*email: 23wm2424@student.gs.chiba-u.jp

Keywords: Positron Probe Microanalyzer, Positron Annihilation Lifetime Spectroscopy, Pure Ni, Fracture Surface, Vacancies

References

[1] N. Oshima et al., Appl. Phys. Lett. 94, 194104 (2009).

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Scientific Books of Abstracts, Vol. 4, pp 69-69

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2024-05-30

Online:
2024-08-23

Recent Development of New Experimental Technologies for Positron Annihilation Spectroscopy at University of Science and Technology of China

H.J. Zhang*, J.D. Liu, B.J. Ye

State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, China

*email: hjzhang8@ustc.edu.cn

Keywords: Positron Annihilation Lifetime Spectroscopy, Doppler Broadening, Age-Momentum Correlation Spectrometer

References

Y. Dong, Q. H. Zhao, Y. H. Li, Z. W. Pan, M. Luo, J. D. Liu, H. J. Zhang, B. J. Ye, NIMA 1055, 168552 (2023).

D. M. Huang, Y. Dong, H. Guo, E. J. Yang, Y. W. Chen, M. Luo, Z. W. Pan, J. D. Liu, L. B. Li, H. J. Zhang, B. J. Ye, Macromolecules 56, 4748 (2023).

Y. H. Li, Q. H. Zhao, Y. Dong, W. Xu, Z. W. Pan, J. D. Liu, H. J. Zhang, B. J. Ye, NIMA 1058, 168772 (2024).

Y. Dong, L. Deng, Y. H. Li, M. Luo, J. D. Liu, H. J. Zhang, B. J. Ye, Phys. Rev. B 109, 104104 (2024).

M. Luo, R. Ye, Y. Dong, Y. H. Li, Y. W. Chen, J. D. Liu, B. J. Ye, H. J. Zhang, NIMA (Under review).

Q. H. Zhao, X. X. Han, H. B. Wang, Y. Dong, Y. H. Li, M. Luo, J. Q. Guo, J. D. Liu, H. J. Zhang, B. J. Ye, NIMA 1038, 166921 (2022).

Y. W. Chen, Y. H. Li, M. Luo, W. Xu, Z. W. Pan, J. D. Liu, H. J. Zhang, B. J. Ye, NIMA 1063, 169286 (2024).

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Chapter 13

Thursday, September 5th - Techniques / Metals and Alloys Session

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Scientific Books of Abstracts, Vol. 4, pp 73-73

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2024-05-30

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2024-08-23

Towards the Investigation of Positronium Interactions in Laser-Written Buried Microcavities with the New Bunched Positron Beam at the AntiMatter Lab of Trento

S. Mariazzi , A. Chehaimi , L. Penasa , R. Caravita , R.S. Brusa

Department of Physics, University of Trento, via Sommarive 14, 38123 Povo, Trento, Italy

TIFPA/INFN Trento, via Sommarive 14, 38123 Povo, Trento, Italy

*email: sebastiano.mariazzir@unitn.it

Keywords: Positron beam, Nano-channel, Positronium, Laser

References

L. Povolo et al., Nucl. Instr. And Meth. B, 553, 165376 (2024).

L. Povolo et al., Phys. Rev. Accel. Beams, 26, 051601 (2023).

S.Mariazzi, P.Bettotti, S.Larcheri, L.Toniutti and R.S. Brusa, Phys. Rev. B,81, 235418 (2010).

S. Mariazzi, P. Bettotti and R.S. Brusa, Phys. Rev. Lett., 104, 243401 (2010).

S. Mariazzi et al., (AEgIS collaboration), J. Phys. B: At. Mol. Opt. Phys., 54, 085004 (2021).

S. Mariazzi, et al., Phys. Rev. B, 105, 115422 (2022).

B. C. Hiesmayr and P. Moskal, Scientific Reports, 7, 15349 (2017).

S. D. Bass, S. Mariazzi, P. Moskal, and E. Stępień, Rev. of Mod. Phys., 95, 1 (2023).

S. Mariazzi et al., Eur. Phys. J. D 74, 79 (2020).

B. S. Cooper et al., Phys. Rev. B, 97, 205302 (2018).

D. B. Cassidy and A. P. Mills, Jr. Phys. Rev. Lett., 100, 013401 (2008).

O. Tokel et al., Nature Photonics, 11, 639 (2017).

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Scientific Books of Abstracts, Vol. 4, pp 74-74

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2024-08-06

Online:
2024-08-23

Real Time Monitoring of Defect Evolution and Relaxation By In Situ Positron Annihilation Spectroscopy (iPAS)

F.A. Selim *, A.C. Jones , T. Chung , M. Chancy , R. Ferguson , P. Hosemann , Y. Wang , B. Uberuaga

School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, USA

Materials Science and Technology Division, Los Alamos National Laboratory, NM, USA

Department of Nuclear Engineering, University of California- Berkeley, CA, USA

*email: Farida.Selim@asu.edu

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Scientific Books of Abstracts, Vol. 4, pp 75-75

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2024-05-30

Online:
2024-08-23

TwinPALS: A Digital Twin for Laboratory-Based Positron Annihilation Lifetime Spectroscopy

Dominik Boras , Danny Petschke , Torsten Staab

Department of Chemistry, University Wuerzburg, LCTM Roentgenring 11, D-97070 Wuerzburg, Germany

*email: dominik.boras@uni-wuerzburg.de

Keywords: Digital Twin, Positron Annihilation Lifetime Spectroscopy (PALS)

Chapter 14

Thursday, September 5th - Metal Oxides Session

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Scientific Books of Abstracts, Vol. 4, pp 79-79

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2024-05-30

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2024-08-23

Ion Driven - to - Phase Transition and Resulting Defect Microstructure

M. O. Liedke , U. Bektas , H. Liu , I. Makkonen , M. Butterling , G. Hlawacek , A. Wagner

Institute of Radiation Physics, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany

Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany

Department of Physics, University of Helsinki, Helsinki, Finland

email: m.liedke@hzdr.de, m.butterling@hzdr.de

References

[1] A. Karjalainen, V. Prozheeva, K. Simula, I. Makkonen, et al., Phys. Rev. B. 102, 195207 (2020).

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Scientific Books of Abstracts, Vol. 4, pp 80-81

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2024-05-30

Online:
2024-08-23

Phase Transition and Structural Defects in Complex Iron-Containing Oxide Glasses Probed by Positron Annihilation

T. Kavetskyy , R. Harizanova , M. Elsayed , J. Čížek , R. Krause-Rehberg , O. Šauša , B. Zgardzińska , I. Gugov , A. Kiv , C. Rüssel

Institute of Physics, Slovak Academy of Sciences, Bratislava, Slovakia

Drohobych Ivan Franko State Pedagogical University, Drohobych, Ukraine

University of Chemical Technology and Metallurgy, Sofia, Bulgaria

Department of Physics, University Halle, Halle, Germany

Physics Department, Faculty of Science, Minia University, Minia, Egypt

Charles University in Prague, Prague, Czech Republic

Department of Nuclear Chemistry, Comenius University in Bratislava, Bratislava, Slovakia

Institute of Physics, Maria Curie-Sklodowska University, Lublin, Poland

South-Ukrainian K.D. Ushynsky National Pedagogical University, Odessa, Ukraine

Department of Materials Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel

Otto-Schott-Institute, University Jena, Jena, Germany

*email: kavetskyy@yahoo.com

Keywords: Iron-containing oxide glasses, Positron Annihilation Lifetime Spectroscopy, Coincidence Doppler Broadening Spectroscopy, Verwey phase transition, defects

References

E.J.W. Verwey, Nature 144, 327 (1939).

S. Lee, A.Fursina, J.T.Mayo, C.T.Yavuz, V.L. Colvin, R.G.S. Sofin, I.V. Shvets, and D. Natelson, Nat. Mater. 7, 130 (2008).

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Scientific Books of Abstracts, Vol. 4, pp 82-82

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2024-05-30

Online:
2024-08-23

Layered Structure of Amorphous PbO Photoconductive Films Revealed by Variable-Energy Positron Annihilation Spectroscopy

J.M. Gaudet , T. Wu , A. Stieh , J. Rado , A. Reznik , A.P. Knights and P. Mascher

Department of Nuclear Operations and Facilities, McMaster University, Hamilton, Canada

Department of Engineering Physic s, McMaster University, Hamilton, Canada

Department of Physics, Lakehead University, Thunder Bay, Canada

*email: gaudej4@mcmaster.ca

References

S.Kasap, J.B.Frey, G. Belev, O. Tousignant, H. Mani, J. Greenspan, L. Laperriere, O. Bubon, A. Reznik, et al, Sensors, 2011, 11, 5112-5157

Kasap S, Frey JB, Belev G, Tousignant O, Mani H, Greenspan J, Laperriere L, Bubon O, Reznik A, DeCrescenzo G, et al. Sensors. 2011; 11(5): 5112-5157. s110505112

Grynko,O; Reznik,A. (2022). Progress in Lead Oxide X-ray Photoconductive Layers. Safa O. Kasap., Photoconductivity and Photoconductive Materials 2 V Set. : 20.

O. Semeniuk, A. Csik, S. Kökényesi and A. Reznik, J. Mater. Sci., DOI: 10.1007 / s10853-017-0998-5

A. Qamar, K. LeBlanc, O. Semeniuk, A Reznik, J. Lin, Y. Pan and A. Moewes, Scientific Reports, 7: 13159, 2017 DOI: 10.1038/s41598-017-13709-7

A. van Veen, H. Schut, J. de Vries, R.A. Hakvoort and M.R. Ijpma, Positron Beams for Solids and Surfaces, 218, pp 171-196, 1990

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Scientific Books of Abstracts, Vol. 4, pp 83-83

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2024-05-30

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Positron Drift in the Oxide and the Depletion Region of a Metal-Oxide Silicon Device Biased to Accumulation, Depletion and Inversion

R. Helm , W. Egger , H. Schut , M.O. Liedke , M. Butterling , A. Wagner , K. Lee , J. Mitteneder , M. Mayerhofer , G. Dollinger , M. Dickmann

Institute of Applied Physics and Measurement Technology, University of the Bundeswehr Munich, Neubiberg, Germany

Reactor Institute Delft, TU Delft, Delft, Netherlands

Insitute of Radiation Physics, Helmholtz Center Dresden-Rossendorf, Dresden-Rossendorf, Germany

Institute of Physics, University of the Bundeswehr Munich, Neubiberg, Germany

emails: ricardo.helm@unibw.de, werner.egger@unibw.de, m.liedke@hzdr.de, m.butterling@hzdr.de, ejohannes.mitteneder@unibw.de, marcel.dickmann@unibw.de

References

R. Suzuki et al., Appl. Surf. Sci. 194, 89-96 (2002).

A. Uedono et al., J. Appl. Phys. 75, 3822(6) (1994).

C. Hugenschmidt et al., J. Phys.: Conf. Ser. 443, 012079 (2013).

A. Wagner et al., AIP Conf. Proc. 1970, 040003 (2018).

M. Clement et al., J. Appl. Phys. 81, 1943(13) (1997).

C. Corbel et al., J. Phys.: Condens. Matter 1, 6315(4) (1989).

Y. Y. Shan et al., Phys. Rev. B 54, 1982(5) (1996).

P. Sperr et al., Appl. Surf. Sci. 255, 35-38 (2008).

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Chapter 15

Thursday, September 5th - Theoretical Session

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Scientific Books of Abstracts, Vol. 4, pp 87-87

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Primary Thermodynamic Defects in Al+H and FeAl Systems

J. Kuriplach

Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic

*email: jan.kuriplach@mff.cuni.cz

Keywords: Point defects, Primary thermodynamic defects, Positron annihilation spectroscopy, DFT

References

J. Mayer and M. Fähnle, Acta Mater. 45, 2207 (1997).

M. Elsayed et al., Acta Mater. 248, 118770 (2023).

N. de Diego et al., Acta Mater. 53, 163 (2005).

A. Broska et al., Intermetallics 7, 259 (1999).

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Scientific Books of Abstracts, Vol. 4, pp 88-88

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2024-05-30

Online:
2024-08-23

Unveiling Ultra-Fast Charging Mechanisms in Graphene-Layered Cathodes through Positron Annihilation Spectroscopy and Density Functional Theory

Meiying Zheng , Jan Kuriplach , Ilja Makkonen , Rafael Ferragut , Vito Di Noto , Gioele Pagot , Ekaterina Laakso , Bernardo Barbiellini

L-Ness Lab and Department of Physics, Politecnico di Milano, Via Anzani, 42, Como, IT-22100, Italy.

Department of Physics, School of Engineering Science, LUT University, Yliopistonkatu 34, Lappeenranta, FI-53851, Finland.

Department of Low Temperature Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, Prague, CZ-18000, Czech Republic.

Department of Physics, University of Helsinki, P.O. Box 43, Helsinki, FI-00014, Finland.

INFN Milano unit, National Institute for Nuclear Physics, Via Celoria,16, Milan, IT-20133, Italy.

Section of Chemistry for the Technology (ChemTech), Department of Industrial Engineering, University of Padova, Via Marzolo 9, Padova, IT-35131, Italy.

Department of Separation Science, LUT University, Yliopistonkatu 34, Lappeenranta, FI-53851, Finland.

Department of Physics, Northeastern University, 360 Huntington Ave, Boston, MA-02115, United States.

*email: meiying.zheng@polimi.it

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 89-89

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Diffusion-Reaction Model of Positron Trapping and Annihilation for Complex Defect Pattern

P. Brunner* and R. Würschum

Institute of Materials Physics, NAWI Graz, Graz University of Technology, Graz, Austria

*email: philipp.brunner@tugraz.at

Keywords: Grain boundary, Positron trapping, diffusion-reaction modelling

Referencs

R. Würschum and A. Seeger, Philos. Mag., 73, 1489 (1996)

J. Dryzek, A. Czapla and E. Kusior, J. Phys. Condens. Matter, 1010827 (1998)

B. Oberdorfer and R. Würschum, Phys. Rev. B, 79, 184103 (2009)

P. Brunner and R. Würschum, J. Phys. Condens. Matter, 36125703 (2024)

M. Simhofer, P. Brunner, J. Weissmüller and R. Würschum, Philos. Mag. (2024)

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Chapter 16

Thursday, September 5th - Techniques Session

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Scientific Books of Abstracts, Vol. 4, pp 93-93

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Variability in FeB Pair Association Rates in Silicon under Ultrasound Loading: Effects of Acoustic Wave Types

Oleg Olikh and Nikolay Arutyunov

Department of General Physics, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine

Department of Physics, Martin Luther University Halle, Halle, Germany

Leibniz-Institut für Kristallzüchtung (IKZ), Berlin, Germany

*email: olegolikh@knu.ua

Keywords: Ultrasound, FeB center, Silicon solar cells, Migration

References

O. Olikh et al., J. Appl. Phys. 130, 235703 (2021).

D. Kropman, V. Seeman, S. Dolgov and A. Medvids, Phys. Stat. Sol. C 13, 793 (2016).

N. Arutyunov, V. Emtsev, R. Krause-Rehberg et al., Sol. St. Phenom. 131-133, 89 (2008).

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Scientific Books of Abstracts, Vol. 4, pp 94-94

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Positron Annihilation Spectroscopy in the H-Embrittled Iron-Based Materials

M. Fujinami , R. Awaji , A. Matsuno , H. Abe , K. Yamamoto , K. Michishio , M. Yamawaki , N. Oshima

Dept. of Chemistry & Biochemistry, Chiba University, Chiba, Japan

AIST, Tsukuba Japan

*email: fujinami@faculty.chiba-u.jp

Keywords: Hydrogen Embrittlement, Fe, Positron Annihilation Lifetime Spectroscopy, Positron Probe Microanalyzer, vacancies

Chapter 17

Poster Session - Metal Oxides

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Scientific Books of Abstracts, Vol. 4, pp 97-97

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Decoupling the Interplay between Structural Defects and Luminescence Properties in Metal-Ion Co-Doped Gadolinium Vanadate

A.G. Attallah , E. Hirschmann , M. Butterling , A. Wagner , A. Turshatov , Aditya Chauhan , Bryce Richards

Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, Dresden 01328, Germany

Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-HelmholtzPlatz 1, 76344, Eggenstein-Leopoldshafen, Germany

*email: a.elsherif@hzdr.de

Keywords: Upconversion materials, Positron annihilation lifetime spectroscopy, Metal-ion dopants, point defects

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 98-98

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Characterization of Defects in TiO2 Films Prepared by Pulsed Laser Deposition

O. Melikhova , J. Čížek , P. Hruška , F. Lukáč , T.Q. Nhu , N.H. Hong

Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic

Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic

Institute of Plasma Physics of the Czech Academy of Sciences, Prague, Czech Republic

Faculty of Science, Masaryk University, Brno, Czech Republic

*email: oksana.melikhova@mff.cuni.cz

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 99-99

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Probing the Defects in -Substituted Bismuth Ferrite Nanocrystallites

S. Mukherjee , M. Ahmed , S. Dey , J. Cyriac , P.M.G. Nambissan

Applied Nuclear Physics Division, Saha Institute of Nuclear Physics, Kolkata, India

Surface Physics and Material Science Division, Saha Institute of Nuclear Physics, Kolkata, India

Homi Bhabha National Institute, Mumbai, India

Department of Physics, Marian College Kuttikkanam (Autonomous), Peermade, India

*email: subharaj.mukherjee@saha.ac.in

Keywords: Positron Annihilation Lifetime Spectroscopy, Coincidence Doppler Broadening, Bismuth Ferrite, defects

References

S. Mukherjee, M. Ahmed, S.M. Mishra, J. Cyriac, C. Chakrabarti, and P.M.G. Nambissan, J. Phys. Chem. Solids 180, 111462 (2023).

J.C. Fuggle, and N. Martensson, J. Electron Spectrosc. Relat. Phenom. 21, 275 (1980).

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Scientific Books of Abstracts, Vol. 4, pp 100-100

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Positron Annihilation Lifetime Spectroscopy for the Microstructural Behavior of NIR-Driven Photocatalytic Nanoparticles

J.D. Liu , L. Liu , H.J. Zhang , B.J. Ye

State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, China

Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, China

*email: liujd@ustc.edu.cn

Keywords: Photocatalysis, nanoparticles, vacancies, Positron Annihilation Lifetime Spectroscopy

References

Z. Zhang, J. Y. Sun, X. Chen, Y. Zhao, J. H. Wen, J. D. Liu, Q. L. Yu, L. Liu, Appl. Surf. Sci. 622,156860 (2023).

J. Y. Sun, J. H. Wen, J. L. Wang, Y. Yang, G. C. Wang, J. D. Liu, Q. L. Yu, M. Y. Liu, J. Hazard. Mater. 451(5), 131082 (2023).

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Chapter 18

Poster Session - Perovskites

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Scientific Books of Abstracts, Vol. 4, pp 103-103

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-06

Online:
2024-08-23

A. Singh , J. Wiktor , M.O. Liedke , M. Butterling , A. Wagner , K.S. Bayikadi , M. G. Kanatzidis , Y. Lu , G. Tumen-UIzii , S.D. Stranks , A. Kanak , S. Yakunin , M.V. Kovalenko , M. Li , J Huang and D.J. Keeble Physics, SUPA, School of Science and Engineering, University of Dundee, Dundee DD1 4HN, UK

Department of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden

Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400,01328 Dresden, Germany

Department of Chemistry, Northwestern University, Evanston, IL 60208-3113 USA

Department of Chemical Engineering & Biotechnology, University of Cambridge, Cambridge, CB3 OAS, UK

Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland

Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC 27599 USA

e-mails: 2513724@dundee.ac.uk, m.liedke@hzdr.de, m.butterling@hzdr.de,

d.j.keeble@dundee.ac.uk

Positron Annihilation Studies of

The metal halide perovskite (MHP) materials are attracting intense research interest due to their excellent optoelectronic properties. In these perovskite materials the B-site cation is normally Pb while the larger A -site is commonly occupied by a small organic ion, e.g. methylammonium, in which case the materials can be termed hybrid MHPs. However, it is also possible for A-site to be occupied by a simple inorganic monovalent cation such as Cs , this simplifies the structure. Further, single crystals can be grown via a solution route or by a melt process [1], and thin films can be solution processed or produced by vapour deposition. Melt-grown crystals exhibit superior physical properties for radiation detector applications [1].

Here we report the results of two-component density functional theory (TC-DFT) calculations for and the results from variable-energy positron annihilation lifetime spectroscopy measurements on a range of single crystal samples as well as vapour and solution processed thin samples. The TC-DFT calculations return positron lifetime values approximately similar to those previously reported for the model MHP [2]. The experimental spectra from certain single crystal and thin film samples returned lifetime component in consistent with trapping to A-site, Cs, vacancy defects. Other single crystal sample exhibited spectra dominated by a lifetime of in agreement with trapping to B-sire, Pb, vacancy defects. Spectra yielding a first lifetime component with a value less than 300 ps were also observed providing evidence for the presence of a reduced bulk lifetime component in those samples.

References

Y.H. He, I. Hadar, M.G. Kanatzidis. Nat. Photon., 16, 14 (2022).

D.J. Keeble, J. Wiktor, S.K. Pathak, L.J. Phillips, M. Dickmann, K. Durose, H.J. Snaith and W. Egger, Nat. Commun., 12, 5566 (2021).

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Chapter 19

Poster Session - Techniques

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Scientific Books of Abstracts, Vol. 4, pp 107-107

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Upgrading the Coincidence Doppler Broadening Spectrometer at FRM II

Danny R. Russell , Francesco Guatieri , Leon Chryssos , Patrick Oberländer , Christoph Hugenschmidt

FRM II, Technische Universität München, München, DE

*email: Daniel.Russell@frm2.tum.de

Keywords: Coincidence Doppler Broadening Spectroscopy, Positron beam, Backscattered positrons

References

[1] Gigl, T. et al. New Journal of Physics, 19(12), 123007 (2017).

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Scientific Books of Abstracts, Vol. 4, pp 108-108

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Lifetime Assessment Model of Positron Annihilation for the Evolution of the Relevant Defects under Fusion Environment Simulation Experiments

V. Krsjak , Y. Song , S. Sojak , I. Neuhold , S. Gasparova , P. Noga , V. Slugen and J. Degmova

Slovak University of Technology in Bratislava, Faculty of Electrical Engineering and Information Technology, Institute of Nuclear and Physical Engineering, Ilkovicova 3, 812 19, Bratislava, Slovakia

Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Advanced Technologies Research Institute, Jana Bottu 2781/25, 917 24, Trnava, Slovakia

*Email: vladimir.krsjak@stuba.sk

Keywords: Helium-Vacancy Cluster, Irradiation, Positron Annihilation Lifetime Spectroscopy (PALS), Positron Trapping Coefficient

References

P. Noga, Z. Száraz, M. Kubiš, J. Dobrovodský, F. Ferenčík, R. Riedlmajer, V. Krsjak, Materials, 2022

V. Krsjak, J. Kuriplach, C. Vieh, L. Peng, Y. Dai, Journal of Nuclear Materials, 504 (2018) 277-280.

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Scientific Books of Abstracts, Vol. 4, pp 109-109

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

High-Temperature Portable PAS-Oriented Sample (HIPPOS) Chamber

G. Evans , C. Tsai , C. Etter

Idaho National Laboratory, Idaho Falls, ID 83415, United States of America

Brigham Young University-Idaho, Rexburg, ID 83460, United States of America

*email: george.evans@inl.gov

References

F. A. Selim, Mater. Char. 174, 110952 (2021).

R. W. Siegel, Ann. Rev. of Mater. Sci. 10(1), 393 (1980).

Ogorodnikova, Dubov, Stepanov, Terentyev, Funtikov, Shtotsky, Stolbunov, Efimov, Gutorov, J. Nucl. Mater 517, 148 (2019).

Dutta, Chakrabarti, Chattopadhyay, Jana, Sanyal, Sarkar, J. Appl. Phys. 98, 053513 (2005).

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Scientific Books of Abstracts, Vol. 4, pp 110-110

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Model for Analyzing Positron-Electron Annihilation Spectra from Short Positron Bursts Containing Many Positrons

G.G. Cecchini

Department of Physics and Astronomy, University of California, Riverside, Riverside, CA, USA

Keywords: Single Shot Positron Lifetime Spectroscopy, Time Dependance

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 111-111

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Micrometer Positron Beam at the Scanning Positron Microscope (SPM)

J. Mitteneder , M. Dickmann , R. Helm , W. Egger , G. Kögel , G. Dollinger

Institut für Angewandte Physik und Messtechnik LRT2, Universität der Bundeswehr München, Neubiberg, Germany

*email: johannes.mitteneder@unibw.de

Keywords: Positron Annihilation Lifetime Spectroscopy, Defects, Scanning Positron Microscope, Positron Beam

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 112-112

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Positron Annihilation in PTFE by Using PALSfit and Scilab Programs

H.A. Al-Droubi* and A.A. Soufan

Department of Physics - Faculty of Science - AL Baath University - Homs - Syria

*huda.aldroubi@gmail.com

Keywords: positron, PTFE, positron spectrum, positron lifetime, exponential Gaussian function, time resolution.

Abstract

In this paper, the convoluted positron lifetime spectrum has analyzed into several spectra representing the components and basic information related to the positron lifetime calculations such as FWHM, Gaussian exponential functions, background, the positron and positronium lifetimes, and other parameters, and compared with each other using PALS technology and its programs (PALSfit and Scilab). The convoluted positron spectrum of PTFE (poly tetra fluoro ethylene) has analyzed into several components. We have fixed the values of the source positron life time, FWHM and ESG of Gaussian functions [1], in order to obtain information about the radioactive isotope used and the lifetime of the positron and positronium. We have used the previous results to calculate the values of the components of the positron lifetimes, we have found the values of free positron ( ) then we have calculated the values of the para and ortho positronium ( ), and we have found the probability of each component ( ), then we have compared these results with the theoretical reference values[2] and we have found agreement to a large extent [2,3].

Refertences

[1] H.A. Al-Droubi and et al AL Baath University journal. 44(4) , 20pp, (2022) . [2]- J. M. Campillo Robles and et al J. Phys.: Condens. Matter 19, 20pp, (2007). [3]- E. BOROŃSKI NUKLEONIKA 55(1): 9-12(2010).

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Scientific Books of Abstracts, Vol. 4, pp 113-113

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

The Time Separation Ability (FWHM) of Exponential Gaussian Function Used in Positron Annihilation

A.M. Soufan , E.A. Badawi , H.A. Al Droubi

Department of Physics - Faculty of Science - AL Baath University - Homs - Syria

Department of Physics, Faculty of Science, Minia University, Minia City, Egypt

*email: dr.soufan.a@gmail.com

Keywords: Software analysis, PALSfit, Scilab, Positron annihilation lifetime spectroscopy, time resolution, Moybdenum

References

J. M. Campillo Robles and et al J. Phys.: Condens. Matter 19, 20pp, (2007).

E. BOROŃSKI NUKLEONIKA 55(1):9-12(2010).

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Scientific Books of Abstracts, Vol. 4, pp 114-114

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-06

Online:
2024-08-23

Towards the Formation of Ps: First Stability Analysis by Using Photoelectric Effect

M.Bayo , A. Galanti , A. Calloni , M. Giammarchi , R. Ferragut , G. Vinelli and G. Rosi

Department of Physiscs, Politecnico di Milano, Via Anzani 42, 22100 Como, Italy

INFN, Sezione di Milano, Via Celoria 16, 20133 Milano, Italy

Department of Physics and Astronomy, Università di Firenze, Via Sansone 1, 50019, Sesto Fiorentino, Italy

INFN, Sezione di Firenze, Via Sansone 1, 50019 Sesto Fiorentino, Italy

LENS, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy

emails: matiasnicolas.bayo@polimi.it; alberto.galanti@mail.polimi.it, rafael.ferragut@polimi.it

References

H. Terabe K. Michisio, T. Tachibana, Y. Nagashima, New J. Phys. 14 (2012)

A. Kiejna, K. F. Wojciechowski, Prog. Surf. Sci. 11 (1981) 293

G. Vinelli, F. Castelli, R. Ferragut, M. Romé, M. Sacerdoti, L. Salvi, V. Toso, M. Giammarchi, G. Rosi, G.M. Tino, Class. Quantum Grav. 40 (2023) 205024

M. Sacerdoti, V. Toso, G. Vinelli, G. Rosi, L. Salvi, G. M. Tino, M. Giammarchi, R. Ferragut, arXiv (arXiv:2307.12894v1) (2023)

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Chapter 20

Poster Session - Porous Materials, Polymers, Ice and Liquids

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Scientific Books of Abstracts, Vol. 4, pp 117-117

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Free Volumes in Electron-Irradiated Biodegradable Polymers Using Positron Annihilation Lifetime Spectroscopy

K. Fedus , G. Karwasz , R. Malinowski

Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland

Łukasiewicz Research Network-Institute for Engineering of Polymer Materials and Dyes, 55 M . Skłodowska-Curie Street, 87-100 Toruń, Poland

*email: kamil@fizyka.umk.pl

Keywords: Positron Annihilation Lifetime Spectroscopy, Polymers, Biodegradable, Free-Volumes, Electron-Iraddiated samples

References

A. Togo, H. Hagihara, Polym. Deg. Stab. 216, 110488 (2023)

A. Karbowski, K. Fedus, K. Służewski, J. Bruzdowska, G. Karwasz, Act. Phys. Pol. A 132 1466 (2017)

P. Kirkegaard, J.V.Olsen, M. Eldrup, 2017, Kgs. Lyngby: Technical University of Denmark, 59 p.

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Scientific Books of Abstracts, Vol. 4, pp 118-118

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Metal Powders Study Using Conventional Positron Annihilation Spectroscopy

M.W. HALIMI , A. GUITTOUM , N. BENJEDDA , M. HEMMOUS

LPTHIRM, Department of Physics, University of Blida 1, Blida, 09000, Algeria.

Nuclear Research Centre of Algeria CRNA, Algiers, 16000, Algeria.

*email: mohamed.halimi423@gmail.com

Keywords: Metal powders, Positron annihilation lifetime spectroscopy, Analysis method, source correction

References

S.Limam, A. Guittoum, Z. Lounis-Mokrani, M. Hemous, and N. Bendjedda,. Pol. A, vol. 144, no. 3, p. 163, Sep. 2023.

Jerzy Dryzek1, J. Appl. Phys. 133, 055104 (2023);

Jerzy Dryzek1, and Krzysztof Siemek M. Journal of Applied Physics 114, 074904 (2013)

Jerzy Dryzek, Nucl. Instrum. Methods Phys. Res. B 521, 1-6 (2022).

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Chapter 21

Poster Session - Metals and Alloys

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 121-121

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Onset of Vacancy Formation in Strained AI Alloys Studied by In Situ PALS

L. Mathes , J. Leeb, J. Löcker, C. Hugenschmidt

Heinz Maier-Leibnitz Zentrum (MLZ), Technical University Munich, Germany

email: lucian.mathes@frm2.tum.de, Christoph.bHugenschmidt@frm2.tum.de

Keywords: Positron Annihilation Lifetime Spectroscopy, defects, Al alloys, strain, Digital Image Correlation

References

Z. Chen at al., Int. J. Plast. 83, 178 (2016)

C. Hugenschmidt et al., Appl. Phys. A 130, 147 (2024)

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The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 122-122

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-06

Online:
2024-08-23

The S-Phase Formation in a High-Purity Al-Cu-Mg Alloy Monitored by Truncation During Heating-Up

Torsten Staab , Dominik Boras , Sebastian Breitfelder , Timo Strobl , Bernd Rellinghaus , Darius Pohl

Department of Chemistry - LCTM/IFB, Julius-Maximilians Universität Würzburg, Würzburg, Germany

Dresden Center for Nanoanalysis (DCN), Technische Universität Dresden, Dresden, Germany

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 123-123

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-12

Online:
2024-08-23

Defects in Materials: Limitations of the Trapping Model - The Influence of Corrupt Components in Positron Lifetime Spectra

Dominik Boras and Torsten E.M. Staab

LCTM / IFB, Department of Chemistry, University of Wuerzburg, Roentgenring 11, D-97070

Wuerzburg, Germany

*email: torsten.staab@uni-wuerzburg.de

References

B. Somieski, T.E.M. Staab, and R. Krause-Rehberg, The Data Treatment Influence on the Spectra decomposition in Positron Lifetime Spectroscopy; Part 1: On the Interpretation of Multi-Component Analysis Studied by Monte-Carlo Simulated Model Spectra, NIM A381 , 128-140 (1996).

T.E.M. Staab, B. Somieski, and R. Krause-Rehberg, The Data Treatment Influence on the Spectra decomposition in Positron Lifetime Spectroscopy; Part 2: The Effect of Source Corrections, NIM A381 , 141-151 (1996).

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The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-from-the-international-workshop-on-positron-studies-of-defects-2024-psd-24/978-3-0364-1591-8

Scientific Books of Abstracts, Vol. 4, pp 124-124

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-05-30

Online:
2024-08-23

Effect of Local Chemical Order on Vacancy Diffusion in NiCoCr Medium Entropy Alloys

Xiaoyu Gui , Eryang Lu , Filip Tuomisto

Department of Physics, University of Helsinki, Helsinki, Finland

*email: eryang.lu@helsinki.fi

References

Velişa, G.; Granberg, F.; Levo, E.; Zhou, Y.; Fan, Z.; Bei, H.; Tuomisto, F.; Nordlund, K.; Djurabekova, F.; Weber, W. J.; et al. Journal of Materials Research 38, 6 (2023).

Cao, P. Accounts of Materials Research 2, 2 (2021).

J. Heikinheimo, K. Mizohata, and F. Tuomisto et al., APL Mater. 7, 021103 (2019).

This ePub file was created using machine-generated methods and automated software to convert the source text into an ePub format and may contain formatting inconsistencies from the original version. Formatting may vary depending on the device used.

Keywords Index

A

Age-momentum Correlation Spectrometer Recent Development of New Experimental Technologies for Positron Annihilation Spectroscopy at University of Science and Technology of China

Al Alloys Onset of Vacancy Formation in Strained AI Alloys Studied by In Situ PALS

Analysis Method Metal Powders Study Using Conventional Positron Annihilation Spectroscopy

Anion Dimers Quantum Monte Carlo Study on Positron Binding to Atomic Anion Dimers

Annealing Diffusion Kinetics of Vacancies and Self-Interstitials in Multi-Principal Elemental Alloys

B

Backscattered Positrons Upgrading the Coincidence Doppler Broadening Spectrometer at FRM II

Biodegradable Free Volumes in Electron-Irradiated Biodegradable Polymers Using Positron Annihilation Lifetime Spectroscopy

Bismuth Ferrite Probing the Defects in

C

Circular Economy ReMade @ ARI: Accelerating the Circular Economy through Advanced Materials Research

Coincidence Doppler Broadening Can Coincidence Doppler be Used for Surface Analysis?; Coincidence Doppler Broadening Spectroscopy of Single Layer Graphene on Copper Using a Variable Energy Positron Beam; Investigation of In-Flight Annihilation of Positrons Using Coincidence Doppler Broadening Spectroscopy; Transforming Biomedical Imaging: Will Positron Annihilation Spectroscopy be the Promise of Preventive Diagnostics?; Probing the Defects in

Coincidence Doppler Broadening Spectroscopy Phase Transition and Structural Defects in Complex Iron-Containing Oxide Glasses Probed by Positron Annihilation; Upgrading the Coincidence Doppler Broadening Spectrometer at FRM II

Conformational Structures Theoretical Study on Conformer-Dependent Positron Binding Properties of Glycine

D

Defect Identification Lifetime Spectroscopy Experiments and Ab-Initio Calculations on Single Crystalline

Defects The High-Intense Pulsed Positron Source MePS - Recent Developments and Future Plans; Investigation of In-Flight Annihilation of Positrons Using Coincidence Doppler Broadening Spectroscopy; Phase Transition and Structural Defects in Complex Iron-Containing Oxide Glasses Probed by Positron Annihilation; Probing the Defects in; Micrometer Positron Beam at the Scanning Positron Microscope (SPM); Onset of Vacancy Formation in Strained AI Alloys Studied by In Situ PALS

Dft Primary Thermodynamic Defects in Al+H and FeAl Systems

Dft Calculations Lifetime Spectroscopy Experiments and Ab-Initio Calculations on Single Crystalline; Theoretical Study on Conformer-Dependent Positron Binding Properties of Glycine

Diffusion-reaction Modelling Diffusion-Reaction Model of Positron Trapping and Annihilation for Complex Defect Pattern

Digital Image Correlation Onset of Vacancy Formation in Strained AI Alloys Studied by In Situ PALS

Digital Twin TwinPALS: A Digital Twin for Laboratory-Based Positron Annihilation Lifetime Spectroscopy

Doppler Broadening Positron Annihilation Spectroscopy of La-Doped Uranium Oxide; Investigation of In-Flight Annihilation of Positrons Using Coincidence Doppler Broadening Spectroscopy; Recent Development of New Experimental Technologies for Positron Annihilation Spectroscopy at University of Science and Technology of China

Doppler Broadening Spectroscopy Vacancy Defects Distribution in Self-lon Irradiated Molybdenum

E

Electron-iraddiated Samples Free Volumes in Electron-Irradiated Biodegradable Polymers Using Positron Annihilation Lifetime Spectroscopy

Environmental Conditions Influence of Environmental Conditions on Surface Groups of Zeolite-Based Molecular Sieve

Exponential Gaussian Function Positron Annihilation in PTFE by Using PALSfit and Scilab Programs

F

Fe Positron Lifetime Changes in Pure Iron During Tensile Deformation and After Unloading Tensile Stress Measured by Gamma-Ray-Induced Positron Annihilation Lifetime Spectroscopy; Positron Annihilation Spectroscopy in the H-Embrittled Iron-Based Materials

Feb Center Variability in FeB Pair Association Rates in Silicon under Ultrasound Loading: Effects of Acoustic Wave Types

Fracture Surface Vacancy-Type Defects Just Below the Intergranular Fracture Surface of Pure Ni by Positron Probe Microanalyzer

Free Volume Free Volume in Complex Lyophilized Formulations by Positron Lifetime Measurements

Free-volumes Free Volumes in Electron-Irradiated Biodegradable Polymers Using Positron Annihilation Lifetime Spectroscopy

Freeze-drying Free Volume in Complex Lyophilized Formulations by Positron Lifetime Measurements

G

Gamma-ray-induced Positrons Positron Lifetime Changes in Pure Iron During Tensile Deformation and After Unloading Tensile Stress Measured by Gamma-Ray-Induced Positron Annihilation Lifetime Spectroscopy

Grain Boundary Diffusion-Reaction Model of Positron Trapping and Annihilation for Complex Defect Pattern

H

Halide Perovskites Lifetime Spectroscopy Experiments and Ab-Initio Calculations on Single Crystalline

Hartree-fock Quantum Monte Carlo Study on Positron Binding to Atomic Anion Dimers

Helium-vacancy Cluster Lifetime Assessment Model of Positron Annihilation for the Evolution of the Relevant Defects under Fusion Environment Simulation Experiments

Hydrogen Embrittlement Operando Positron Annihilation Lifetime Spectroscopy for Defect Detection in Hydrogen Embrittled Iron; Positron Annihilation Spectroscopy in the H-Embrittled Iron-Based Materials

I

Ice Melting Melting Front of Ice: What do the Positrons Can Say about It?

In-flight Annihilation Investigation of In-Flight Annihilation of Positrons Using Coincidence Doppler Broadening Spectroscopy

In-situ Tensile Deformation Positron Lifetime Changes in Pure Iron During Tensile Deformation and After Unloading Tensile Stress Measured by Gamma-Ray-Induced Positron Annihilation Lifetime Spectroscopy

Intravital Imaging Transforming Biomedical Imaging: Will Positron Annihilation Spectroscopy be the Promise of Preventive Diagnostics?

Iron-containing Oxide Glasses Phase Transition and Structural Defects in Complex Iron-Containing Oxide Glasses Probed by Positron Annihilation

Irradiation Lifetime Assessment Model of Positron Annihilation for the Evolution of the Relevant Defects under Fusion Environment Simulation Experiments

Irradiation-induced Defects Diffusion Kinetics of Vacancies and Self-Interstitials in Multi-Principal Elemental Alloys

L

La Doping Positron Annihilation Spectroscopy of La-Doped Uranium Oxide

Laser Towards the Investigation of Positronium Interactions in Laser-Written Buried Microcavities with the New Bunched Positron Beam at the AntiMatter Lab of Trento

Lifetime Spectroscopy The High-Intense Pulsed Positron Source MePS - Recent Developments and Future Plans

Linac Development of a Slow Positron Beamline Using a LINAC; The High-Intense Pulsed Positron Source MePS - Recent Developments and Future Plans

Living Cells Transforming Biomedical Imaging: Will Positron Annihilation Spectroscopy be the Promise of Preventive Diagnostics?

Lyophilized Formulations Free Volume in Complex Lyophilized Formulations by Positron Lifetime Measurements

M

Magnetic Bottle Trap Experiments on Positron Moderation Efficiency of Tungsten Using a Magnetic-Bottle Trap

Metal Powders Metal Powders Study Using Conventional Positron Annihilation Spectroscopy

Metal Surface Can Coincidence Doppler be Used for Surface Analysis?

Metal-ion Dopants Decoupling the Interplay between Structural Defects and Luminescence Properties in Metal-Ion Co-Doped Gadolinium Vanadate

Microstructure Microstructure Analysis of Corrosion of Zr-4 and Zr-1Nb Alloys by Positron Annihilation

Migration Variability in FeB Pair Association Rates in Silicon under Ultrasound Loading: Effects of Acoustic Wave Types

Moderation Efficiency Experiments on Positron Moderation Efficiency of Tungsten Using a Magnetic-Bottle Trap

Molecular Clusters Theoretical Study on Conformer-Dependent Positron Binding Properties of Glycine

Molecular Mobility Free Volume in Complex Lyophilized Formulations by Positron Lifetime Measurements

Molecular Sieve Influence of Environmental Conditions on Surface Groups of Zeolite-Based Molecular Sieve

Monte Carlo Simulations Vacancy Defects Distribution in Self-lon Irradiated Molybdenum

Moybdenum The Time Separation Ability (FWHM) of Exponential Gaussian Function Used in Positron Annihilation

N

Nano-channel Towards the Investigation of Positronium Interactions in Laser-Written Buried Microcavities with the New Bunched Positron Beam at the AntiMatter Lab of Trento

Nanoparticles Positron Annihilation Lifetime Spectroscopy for the Microstructural Behavior of NIR-Driven Photocatalytic Nanoparticles

Ni Based Alloys Diffusion Kinetics of Vacancies and Self-Interstitials in Multi-Principal Elemental Alloys

O

Oxidation Positron Annihilation Spectroscopy of La-Doped Uranium Oxide

P

Palsfit The Time Separation Ability (FWHM) of Exponential Gaussian Function Used in Positron Annihilation

Parapositronium Melting Front of Ice: What do the Positrons Can Say about It?

Phase Transition Melting Front of Ice: What do the Positrons Can Say about It?

Photocatalysis Positron Annihilation Lifetime Spectroscopy for the Microstructural Behavior of NIR-Driven Photocatalytic Nanoparticles

Point Defects Primary Thermodynamic Defects in Al+H and FeAl Systems; Decoupling the Interplay between Structural Defects and Luminescence Properties in Metal-Ion Co-Doped Gadolinium Vanadate

Polymers Free Volumes in Electron-Irradiated Biodegradable Polymers Using Positron Annihilation Lifetime Spectroscopy

Positron Positron Annihilation in PTFE by Using PALSfit and Scilab Programs

Positron Annihilation The High-Intense Pulsed Positron Source MePS - Recent Developments and Future Plans; Microstructure Analysis of Corrosion of Zr-4 and Zr-1Nb Alloys by Positron Annihilation

Positron Annihilation Lifetime Spectroscopy Lifetime Spectroscopy Experiments and Ab-Initio Calculations on Single Crystalline; Melting Front of Ice: What do the Positrons Can Say about It?; Theoretical Study on Conformer-Dependent Positron Binding Properties of Glycine; Positron Lifetime Changes in Pure Iron During Tensile Deformation and After Unloading Tensile Stress Measured by Gamma-Ray-Induced Positron Annihilation Lifetime Spectroscopy; Free Volume in Complex Lyophilized Formulations by Positron Lifetime Measurements; Transforming Biomedical Imaging: Will Positron Annihilation Spectroscopy be the Promise of Preventive Diagnostics?; Operando Positron Annihilation Lifetime Spectroscopy for Defect Detection in Hydrogen Embrittled Iron; Vacancy-Type Defects Just Below the Intergranular Fracture Surface of Pure Ni by Positron Probe Microanalyzer; Recent Development of New Experimental Technologies for Positron Annihilation Spectroscopy at University of Science and Technology of China; Phase Transition and Structural Defects in Complex Iron-Containing Oxide Glasses Probed by Positron Annihilation; Positron Annihilation Spectroscopy in the H-Embrittled Iron-Based Materials; Decoupling the Interplay between Structural Defects and Luminescence Properties in Metal-Ion Co-Doped Gadolinium Vanadate; Probing the Defects in; Positron Annihilation Lifetime Spectroscopy for the Microstructural Behavior of NIR-Driven Photocatalytic Nanoparticles; Micrometer Positron Beam at the Scanning Positron Microscope (SPM); The Time Separation Ability (FWHM) of Exponential Gaussian Function Used in Positron Annihilation; Free Volumes in Electron-Irradiated Biodegradable Polymers Using Positron Annihilation Lifetime Spectroscopy; Metal Powders Study Using Conventional Positron Annihilation Spectroscopy; Onset of Vacancy Formation in Strained AI Alloys Studied by In Situ PALS

Positron Annihilation Lifetime Spectroscopy (pals) Influence of Environmental Conditions on Surface Groups of Zeolite-Based Molecular Sieve; TwinPALS: A Digital Twin for Laboratory-Based Positron Annihilation Lifetime Spectroscopy; Lifetime Assessment Model of Positron Annihilation for the Evolution of the Relevant Defects under Fusion Environment Simulation Experiments

Positron Annihilation Spectroscopy Positron Annihilation Spectroscopy of La-Doped Uranium Oxide; Diffusion Kinetics of Vacancies and Self-Interstitials in Multi-Principal Elemental Alloys; Primary Thermodynamic Defects in Al+H and FeAl Systems

Positron Beam Experiments on Positron Moderation Efficiency of Tungsten Using a Magnetic-Bottle Trap; Coincidence Doppler Broadening Spectroscopy of Single Layer Graphene on Copper Using a Variable Energy Positron Beam; Towards the Investigation of Positronium Interactions in Laser-Written Buried Microcavities with the New Bunched Positron Beam at the AntiMatter Lab of Trento; Upgrading the Coincidence Doppler Broadening Spectrometer at FRM II; Micrometer Positron Beam at the Scanning Positron Microscope (SPM)

Positron Binding Quantum Monte Carlo Study on Positron Binding to Atomic Anion Dimers

Positron Lifetime Positron Annihilation in PTFE by Using PALSfit and Scilab Programs

Positron Probe Microanalyzer Vacancy-Type Defects Just Below the Intergranular Fracture Surface of Pure Ni by Positron Probe Microanalyzer; Positron Annihilation Spectroscopy in the H-Embrittled Iron-Based Materials

Positron Spectrum Positron Annihilation in PTFE by Using PALSfit and Scilab Programs

Positron Trapping Diffusion-Reaction Model of Positron Trapping and Annihilation for Complex Defect Pattern

Positron Trapping Coefficient Lifetime Assessment Model of Positron Annihilation for the Evolution of the Relevant Defects under Fusion Environment Simulation Experiments

Positronium Transforming Biomedical Imaging: Will Positron Annihilation Spectroscopy be the Promise of Preventive Diagnostics?; Towards the Investigation of Positronium Interactions in Laser-Written Buried Microcavities with the New Bunched Positron Beam at the AntiMatter Lab of Trento

Post-irradiation Corrosion Microstructure Analysis of Corrosion of Zr-4 and Zr-1Nb Alloys by Positron Annihilation

Primary Thermodynamic Defects Primary Thermodynamic Defects in Al+H and FeAl Systems

Ptfe Positron Annihilation in PTFE by Using PALSfit and Scilab Programs

Pure Ni Vacancy-Type Defects Just Below the Intergranular Fracture Surface of Pure Ni by Positron Probe Microanalyzer

Q

Quantum Monte Carlo Quantum Monte Carlo Study on Positron Binding to Atomic Anion Dimers

R

Recyclable Materials ReMade @ ARI: Accelerating the Circular Economy through Advanced Materials Research

S

Scanning Positron Microscope Micrometer Positron Beam at the Scanning Positron Microscope (SPM)

Scilab The Time Separation Ability (FWHM) of Exponential Gaussian Function Used in Positron Annihilation

Self-irradiated Mo Vacancy Defects Distribution in Self-lon Irradiated Molybdenum

Silicon Solar Cells Variability in FeB Pair Association Rates in Silicon under Ultrasound Loading: Effects of Acoustic Wave Types

Single Layer Graphene Coincidence Doppler Broadening Spectroscopy of Single Layer Graphene on Copper Using a Variable Energy Positron Beam

Single Shot Positron Lifetime Spectroscopy Model for Analyzing Positron-Electron Annihilation Spectra from Short Positron Bursts Containing Many Positrons

Slow Positrons Experiments on Positron Moderation Efficiency of Tungsten Using a Magnetic-Bottle Trap; Development of a Slow Positron Beamline Using a LINAC

Software Analysis The Time Separation Ability (FWHM) of Exponential Gaussian Function Used in Positron Annihilation

Source Correction Metal Powders Study Using Conventional Positron Annihilation Spectroscopy

Stoichiometry Positron Annihilation Spectroscopy of La-Doped Uranium Oxide

Strain Onset of Vacancy Formation in Strained AI Alloys Studied by In Situ PALS

Surface Analysis Can Coincidence Doppler be Used for Surface Analysis?

Surface Groups Influence of Environmental Conditions on Surface Groups of Zeolite-Based Molecular Sieve

Surface Trapping Coincidence Doppler Broadening Spectroscopy of Single Layer Graphene on Copper Using a Variable Energy Positron Beam

T

Theoretical Modeling Can Coincidence Doppler be Used for Surface Analysis?

Time Dependance Model for Analyzing Positron-Electron Annihilation Spectra from Short Positron Bursts Containing Many Positrons

Time Resolution Positron Annihilation in PTFE by Using PALSfit and Scilab Programs; The Time Separation Ability (FWHM) of Exponential Gaussian Function Used in Positron Annihilation

U

Ultrasound Variability in FeB Pair Association Rates in Silicon under Ultrasound Loading: Effects of Acoustic Wave Types

Upconversion Materials Decoupling the Interplay between Structural Defects and Luminescence Properties in Metal-Ion Co-Doped Gadolinium Vanadate

Uranium Dioxide Positron Annihilation Spectroscopy of La-Doped Uranium Oxide

V

Vacancies Vacancy Defects Distribution in Self-lon Irradiated Molybdenum; Positron Lifetime Changes in Pure Iron During Tensile Deformation and After Unloading Tensile Stress Measured by Gamma-Ray-Induced Positron Annihilation Lifetime Spectroscopy; Vacancy-Type Defects Just Below the Intergranular Fracture Surface of Pure Ni by Positron Probe Microanalyzer; Positron Annihilation Spectroscopy in the H-Embrittled Iron-Based Materials; Positron Annihilation Lifetime Spectroscopy for the Microstructural Behavior of NIR-Driven Photocatalytic Nanoparticles

Vacancy-hydrogen Operando Positron Annihilation Lifetime Spectroscopy for Defect Detection in Hydrogen Embrittled Iron

Verwey Phase Transition Phase Transition and Structural Defects in Complex Iron-Containing Oxide Glasses Probed by Positron Annihilation

X

Xe20+ Irradiation Microstructure Analysis of Corrosion of Zr-4 and Zr-1Nb Alloys by Positron Annihilation

Z

Zeolites Influence of Environmental Conditions on Surface Groups of Zeolite-Based Molecular Sieve

Zr Alloys Microstructure Analysis of Corrosion of Zr-4 and Zr-1Nb Alloys by Positron Annihilation

Authors Index

A

Abe, H. Vacancy-Type Defects Just Below the Intergranular Fracture Surface of Pure Ni by Positron Probe Microanalyzer

Al-Droubi, H. Positron Annihilation in PTFE by Using PALSfit and Scilab Programs

Amoroso, P. Point Defects in Ga- and B-Doped Ge

Arutyunov, N. Impact of Proton Irradiation on Donor Centers in Silicon for Quantum Technologies in Space: Challenging Issues in Identifying of Point Defects

Attallah, A. Decoupling the Interplay between Structural Defects and Luminescence Properties in Metal-Ion Co-Doped Gadolinium Vanadate

B

Bayo, M. Towards the Formation of Ps: First Stability Analysis by Using Photoelectric Effect

Brunner, P. Diffusion-Reaction Model of Positron Trapping and Annihilation for Complex Defect Pattern

Butterling, M. The High-Intense Pulsed Positron Source MePS - Recent Developments and Future Plans

C

Cecchini, G. Model for Analyzing Positron-Electron Annihilation Spectra from Short Positron Bursts Containing Many Positrons

Chiari, L. Free Volume in Complex Lyophilized Formulations by Positron Lifetime Measurements

Chryssos, L. Investigation of In-Flight Annihilation of Positrons Using Coincidence Doppler Broadening Spectroscopy

Conci, C. Transforming Biomedical Imaging: Will Positron Annihilation Spectroscopy be the Promise of Preventive Diagnostics?

Corbel, C. Evidence of Different Positron Annihilation Quantum States in Methylammonium Lead lodide Depending on Preparation

D

Dickmann, M. Identification and Reversible Optical Switching of NV Centers in Diamond

Djourelov, N. Slow Positron Beam Study of Lithium Implanted Boron Carbide

E

Evans, G. Influence of Environmental Conditions on Surface Groups of Zeolite-Based Molecular Sieve; High-Temperature Portable PAS-Oriented Sample (HIPPOS) Chamber

F

Fedus, K. Free Volumes in Electron-Irradiated Biodegradable Polymers Using Positron Annihilation Lifetime Spectroscopy

Ferragut, R. Vacancies and Dopants in Epitaxially Grown Silicon

Folegati, P. Dose Absorption in Living Cells During Positron and Positronium Annihilation Spectroscopy Studies

Fujinami, M. Positron Annihilation Spectroscopy in the H-Embrittled Iron-Based Materials

G

Galanti, A. Towards the Formation of Ps: First Stability Analysis by Using Photoelectric Effect

Gaudet, J. Layered Structure of Amorphous PbO Photoconductive Films Revealed by Variable-Energy Positron Annihilation Spectroscopy

Gui, X. Effect of Local Chemical Order on Vacancy Diffusion in NiCoCr Medium Entropy Alloys

H

Halimi, M. Metal Powders Study Using Conventional Positron Annihilation Spectroscopy

Helm, R. Positron Drift in the Oxide and the Depletion Region of a Metal-Oxide Silicon Device Biased to Accumulation, Depletion and Inversion

Hirschmann, E. ReMade @ ARI: Accelerating the Circular Economy through Advanced Materials Research

Hu, Z. Vacancy Defects Distribution in Self-lon Irradiated Molybdenum

K

Kavetskyy, T. Phase Transition and Structural Defects in Complex Iron-Containing Oxide Glasses Probed by Positron Annihilation

Kawasuso, A. Survey of Defects in Some Spintronics Materials by Spin-Polarized Positrons

Keeble, D. Detection and Identification of Vacancy Defects in Antimony Selenide

Kinomura, A. Development of a Slow Positron Beamline Using a LINAC

Krsjak, V. Lifetime Assessment Model of Positron Annihilation for the Evolution of the Relevant Defects under Fusion Environment Simulation Experiments

Kuriplach, J. Primary Thermodynamic Defects in Al+H and FeAl Systems

L

Li, X. Characterization of LiNiO2 Cathodes Using Positron Annihilation Lifetime Spectroscopy

Liu, J. Positron Annihilation Lifetime Spectroscopy for the Microstructural Behavior of NIR-Driven Photocatalytic Nanoparticles

Lu, E. Diffusion Kinetics of Vacancies and Self-Interstitials in Multi-Principal Elemental Alloys

M

Mahdy, H. Coincidence Doppler Broadening Spectroscopy of Single Layer Graphene on Copper Using a Variable Energy Positron Beam

Makkonen, I. Ion Driven

Mariazzi, S. Towards the Investigation of Positronium Interactions in Laser-Written Buried Microcavities with the New Bunched Positron Beam at the AntiMatter Lab of Trento

Mathes, L. Onset of Vacancy Formation in Strained AI Alloys Studied by In Situ PALS

Melikhova, O. Characterization of Defects in TiO2 Films Prepared by Pulsed Laser Deposition

Mitteneder, J. Micrometer Positron Beam at the Scanning Positron Microscope (SPM)

Mukherjee, S. Probing the Defects in

N

Nagai, Y. Effect of Re on Irradiation Induced Defect Formation in W Alloys

O

Olikh, O. Variability in FeB Pair Association Rates in Silicon under Ultrasound Loading: Effects of Acoustic Wave Types

P

Popov, D. Positron Annihilation Spectroscopy of La-Doped Uranium Oxide

R

Russell, D. Upgrading the Coincidence Doppler Broadening Spectrometer at FRM II

S

Sanchez, S. The Nature of the Bulk Defect Formation for Photonic Annealed FAPbl3 Halide Perovskite Thin-Film

Schmidt, J. Lifetime Spectroscopy Experiments and Ab-Initio Calculations on Single Crystalline

Selim, F. Real Time Monitoring of Defect Evolution and Relaxation By In Situ Positron Annihilation Spectroscopy (iPAS)

Serban, A. Experiments on Positron Moderation Efficiency of Tungsten Using a Magnetic-Bottle Trap

Singh, A. Vacancy Defects in Hybrid Metal Halide Perovskites; Positron Annihilation Studies of

Soufan, A. The Time Separation Ability (FWHM) of Exponential Gaussian Function Used in Positron Annihilation

Staab, T. TwinPALS: A Digital Twin for Laboratory-Based Positron Annihilation Lifetime Spectroscopy; The S-Phase Formation in a High-Purity Al-Cu-Mg Alloy Monitored by Truncation During Heating-Up; Defects in Materials: Limitations of the Trapping Model - The Influence of Corrupt Components in Positron Lifetime Spectra

Stepanov, S. Melting Front of Ice: What do the Positrons Can Say about It?

T

Tachikawa, M. Quantum Monte Carlo Study on Positron Binding to Atomic Anion Dimers

V

Vicini, M. A New Approach for the Study of Cell Monolayers with Positron and Positronium Annihilation Spectroscopy Leveraging on Cell-Sheet Technology

W

Weiss, A. Can Coincidence Doppler be Used for Surface Analysis?

Wu, Y. Microstructure Analysis of Corrosion of Zr-4 and Zr-1Nb Alloys by Positron Annihilation

Y

Yabuuchi, A. Positron Lifetime Changes in Pure Iron During Tensile Deformation and After Unloading Tensile Stress Measured by Gamma-Ray-Induced Positron Annihilation Lifetime Spectroscopy

Yamamoto, K. Operando Positron Annihilation Lifetime Spectroscopy for Defect Detection in Hydrogen Embrittled Iron

Yoshida, D. Theoretical Study on Conformer-Dependent Positron Binding Properties of Glycine

Z

Zhang, H. Recent Development of New Experimental Technologies for Positron Annihilation Spectroscopy at University of Science and Technology of China

Zheng, M. Unveiling Ultra-Fast Charging Mechanisms in Graphene-Layered Cathodes through Positron Annihilation Spectroscopy and Density Functional Theory

Č

Čížek, J. Point Defects in GaN Single Crystals and Thin Films