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Thermoluminescence Response of Germanium-Doped Silica (SiO2) Optical Fibers Subjected to X-Ray Irradiation

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Abstract:

We have investigated the suitability of 8% mole of tailor-made germanium (Ge)- doped silica (Si02) cylindrical fibers to use as the detector, to map dose that received by the patient during the treatment especially for X-ray radiation. The diameters of these cylindrical optical fibers are; 362μm, 483μm and 604μm with different in masses and have been supplied by Telekom Malaysia (TM) group. To study the thermoluminescence reponse of these fibers, X-ray source with 60 kVp, 80 kVp and 100 kVp were used to irradiate the samples. The dosage of X-ray source was measured by the calibrated ionization chamber. The potential of these (Ge) - doped silica (Si02) cylindrical fibers as an efficient thermoluminescence (TL) material was investigated comparing the thermoluminescence response of the fibers with standard TLD 100. In confronting the variation of the dopant concentration (Germanium) along the core of the optical fibers, the individual calibrations so called as Elemental Correction Coefficient (ECC) were carried out. The results showed that, the best annealing temperature and time (to erase the previous signal) for the samples are 400 °C for one hour. The TL Yield (measured in counts per second per unit mass of fiber) increases as the dose of X-ray beams increases from 0.08 Gy up until 2.8 Gy. The results were clearly indicated that the TL response of SiO2 fibers were energy dependent. It can be concluded that, Ge-doped optical Silica (SiO2) optical fibers is very suitable to use as TLD to measure dose in medical applications.

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Periodical:

Advanced Materials Research (Volume 1133)

Pages:

434-438

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1133.434

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Online since:

January 2016

Authors:

Norfadira Wahib*, Siti Nurasiah Mat Nawi, Nurul Najua Zulkepely, Yusoff Mohd Amin, Seong Ling Yap, David Andrew Bradley, Siti Fairus Abdul Sani, Mohd Jamil Maah

Keywords:

8% Mole of Ge-Doped Silica Optical Fiber, Dose Linearity, Energy Dependence, Thermoluminescence (TL), X-Ray Irradiation

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] G. Espinosa, J. I Golzarri, J. Bogard, J. Garcia- Macedo, Commercial optical fibre as TLD, Material. 119 (2006) 197-200.

DOI: 10.1093/rpd/nci564

Google Scholar

[2] F. Issa, N. A. Abd Latip, D. A. Bradley, A. Nisbet, Ge-doped optical fibres as thermoluminescence dosimeters for kilovoltage X-ray therapy irradiations, Nuclear instruments and methods, Physics Research A. 652 (2011) 834- 837.

DOI: 10.1016/j.nima.2010.09.080

Google Scholar

[3] H. Wagiran, I. Hossain, D. Bradley, A. N. H. Yaakob, T. Ramli, Thermoluminescence responses of photon and electron irradiated Ge- and Al-doped SiO2 optical fibres, Chin. Phys. Lett. 29 (2) (2012) 027802.

DOI: 10.1088/0256-307x/29/2/027802

Google Scholar

[4] Podgorsak, E. B, Radiation oncology physics: A handbook for teacher and student, Internal Atomic Energy Agency Publications, Vienna, (2005).

Google Scholar

[5] S. Hashim, S. Al-Ahbabi, D.A. Bradley, M. Webb, C. Jeynes, A.T. Ramli, H. Wagiran, The thermoluminescence response of doped SiO2 optical fibres subjected to photon and electron irradiations, Appl. Radiat. Isot. 67 (2009) 428- 432.

DOI: 10.1016/j.apradiso.2008.06.030

Google Scholar

[6] M. Kurudirek, Effective atomic numbers and electron densities of some human tissues and dosimetric materials for mean energies of various radiation sources relevant to radiotherapy and medical applications, Radiation Physics and Chemistry. 102 (2014).

DOI: 10.1016/j.radphyschem.2014.04.033

Google Scholar

[7] M. Benabdesselam, F. Mady, S. Girard, Y. Mebrouk, J. B. Duchez, M. Gaillardin, P. Paillet, Performance of Ge-doped optical fiber as a thermoluminescent dosimeter, IEEE Transactions on Nuclear Science. 60 (6) (2013) 4251-4256.

DOI: 10.1109/tns.2013.2284289

Google Scholar

[8] M. Folkard, M. J Roper, B. D Michael, Measurement and analysis of supralinearity in LiF TLD-100 irradiated by 1. 5 keV x-rays, Phys. Med. Biol. 34 (1989) 707- 715.

DOI: 10.1088/0031-9155/34/6/006

Google Scholar

[9] M. Ismail, M. Afzal, M. Nadeem, A.M. Rana, S. Amjad, S.A. Buzdar, Evaluation of depth dose characteristics of superficial X-rays machine using different kVp and applicators diameter, Iran. J. Radiat. Res. 9 (2011) 159-166.

Google Scholar

[10] S. Hashim, M. I. Saripan, A. T. A. Rahman, N. H. Yaakob, D. A. Bradley, K. Alzimami, Effective atomic number of Ge-doped and Al-doped optical fibers for radiation dosimetry purposes, IEEE Transactions on Nuclear Science. 60 (2) (2013) 555-559.

DOI: 10.1109/tns.2012.2226912

Google Scholar

[11] N. H. Yaakob, H. Wagiran, M. I. Hossain, A. T. Ramli, D.A. Bradley, H. Ali, Low-dose photon irradiation response of Ge and Al-doped SiO2 optical fibres, Applied Radiation and Isotopes. 69 (2011) 1189-1192.

DOI: 10.1016/j.apradiso.2011.03.039

Google Scholar

[12] M. A. Saeed, N. A Fauzia, I. Hossain, A. T. Ramli, B. A Tahir, Thermoluminescence response of Germanium-doped optical fibers to X-Ray irradiation, Chin. Phys. Lett. 29 (7) (2012) 078701.

DOI: 10.1088/0256-307x/29/7/078701

Google Scholar

[13] I . Gamboa- de Buent, A. E. Buenfil, C.G. Ruiz, M. Rondriguez- Villafuerte, A. Flores, M. E Brandan, Thermoluminescent response and relative efficiency of TLD-100 exposed low energy X-rays, Phys. Med. Biol. 43 (1998) 2073-(2083).

DOI: 10.1088/0031-9155/43/8/006

Google Scholar