Thermoluminescence Characteristics of Aluminium Oxide Doped Carbon Exposed to Cobalt-60 Gamma Radiation

Abstract:

This study concerns on the thermoluminescence (TL) characteristics of carbon doped aluminum oxide (Al₂O₃:C) as ionizing radiation dosimeter. The thermoluminescence response, linearity and sensitivity subjected to Co-60 gamma irradiation were investigated. Carbon doped (0.2 mol %) aluminum oxide samples in form of powder were irradiated to 1.25 MeV Co-60 gamma ray with doses ranging from 1 Gy to 50 Gy. Irradiations were performed by using Co-60 gamma ray model 220 Excel with the source activity, A = 2.310925534 kGy h¹ at Universiti Kebangsaan Malaysia. The glow curves were analysed to determine various characterizations of the TLDs. It is shown that the glow curve of the sample contains a single peak at about 180°C with broad peak appears at the right of the spectrum. It is also shown that the TL intensity has linear relationship with delivered dose and the average TL sensitivity was calculated as 3.30 nC mg^-1 Gy^-1.

• Periodical: Advanced Materials Research (Volume 1107)
• Pages: 553-558
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1107.553
• Online since: June 2015
• Authors: Nurul Syazlin Saharin, Husin Wagiran, Abdul Rahman Tamuri
• Keywords: Aluminium Oxide Doped Carbon, Dosimetry, Photon, Thermoluminescence

References

[1] F. Daniels, J.K. Rieke,. Thermoluminescence studies of aluminium oxide.J. Phys. Chem. 61, (1957) 629-633.

[2] X.B. Yang, H.J. Li, Q.Y. Bi, Y. Cheng, Q. Tang and J. Xu, Influence of carbon on the thermoluminescence and optically stimulated luminescence of α- Al2O3: C crystals. Journal of applied Physics. 104 (2008) 112-123.

DOI: 10.1063/1.3050344

[3] Chen Reuven, Advantages and disadvantages in the utilisation of thermoluminescence (TL) and Optically Stimulated Luminescene (OSL) for radiation dosimetry. Radiation Protection. 1, (2001) 1-8.

[4] K.R. Nagabhushana, B.N. Lakshminarasappa, D. Revannasiddaiah, D. Haranath & Fouran Singh, Swift heavy ion induced thermoluminescence studies in polycrystalline aluminium oxide. Indian Journal of Engineering & Materials Sciences. 16 (2009) 161-164.

[5] V. Kortov, Materials for thermoluminescent dosimetry: Current status and future trends. Radiation Measurement. 42, (2007) 576-581.

DOI: 10.1016/j.radmeas.2007.02.067

[6] A.J.J. Bos, High sensitivity thermoluminescence dosimetry. Nuclear Instruments and Methods in Physics Research B. 184 (2001) 3-28.

[7] L. T. Ying, H. Wagiran, S. Hashim and R. Hussin, Overview of the sensitivity of Ge- and Al-doped silicon dioxide optical fibres to ionizing radiation, Malaysian Journal of Fundamental & Applied Sciences. 8 (2012) 219-223.

DOI: 10.11113/mjfas.v8n4.164

[8] D. Lo , J.L. Lawless and R. Chen, Superlinear dose dependence of high temperature thermoluminescence peaks in Al2O3:C. Radiation Protection Dosimetry. 119 (2006) 71-74.

DOI: 10.1093/rpd/nci642

[9] M.S. Akselrod, V. S Kortov, D.J. Kravetsky, V.I. Gotlib, Highly sensitive thermoluminescnece anion-defect a- Al2O3: C single crystals detectors. Radiation Protection Dosimetry. 33 (1990) 119-122.

DOI: 10.1093/rpd/33.1-4.119

[10] M.L. Chithambo, Concerning secondary thermoluminescence peaks in a- Al2O3:C. South African Journal of Science. 100 (2004) 154-157.

[11] W.M. de Azavedo, G.B. de Oliveira, E.F. da Silva Jr, H.J. Khoury and Oliveira de Jesus, Highly sensitive thermoluminescence carbon doped nanoporous aluminium oxide detectors. Radiation. Protection Dosimetry. 119 (2006) 201-205.

DOI: 10.1093/rpd/nci684

[12] Y.X. Bo, X. Jun, L.H. Jun, B.Q. Yu, Thermoluminescence and optically stimulated luinescence disadvantage of α-Al2O3: C crystal grown by the temperature gradient technique, Chin Phys.B. (2010) 19.

DOI: 10.1088/1674-1056/19/4/047803

[13] M. Zahedifar, L. Eshraghi, E. Sedeghi, Thermoluminescence kinetics of α- Al2O3: C at different dose levels and populations of trapping states and a model for its dose response. Radiation Measurements. 47 (2012) 957-964.

DOI: 10.1016/j.radmeas.2012.07.018

[14] E. Pekpak, A. Yilmaz, G. Ozbayoglu, An Overview on Preparation and thermoluminescence Characterization of Lithium Borates for Dosimetric Use. The Open Mineral Processing Journal. 3, (2010) 14-24.

DOI: 10.2174/1874841401003010014

[15] C. Furetta, Handbook of Thermoluminescence,: 2003, World Scientific.