Low-dose photon irradiation response of Ge and Al-doped SiO2 optical fibres

Nor H Yaakob; Husin Wagiran; Md Imam Hossain; Ahmad T Ramli; D A Bradley; Hasan Ali

doi:10.1016/j.apradiso.2011.03.039

Low-dose photon irradiation response of Ge and Al-doped SiO2 optical fibres

Appl Radiat Isot. 2011 Sep;69(9):1189-92. doi: 10.1016/j.apradiso.2011.03.039. Epub 2011 Apr 6.

Authors

Nor H Yaakob¹, Husin Wagiran, Md Imam Hossain, Ahmad T Ramli, D A Bradley, Hasan Ali

Affiliation

¹ Department of Physics, Universiti Teknologi Malaysia, Johor Darul Takzim, Malaysia.

PMID: 21507665
DOI: 10.1016/j.apradiso.2011.03.039

Abstract

We have investigated the thermoluminescent response and fading characteristics of germanium- and aluminium-doped SiO(2) optical fibres. These optical fibres were placed in a solid phantom and irradiated using 6 and 10 MV photon beams at doses ranging from 0.02 to 0.24 Gy delivered using a linear accelerator. In fading studies, the TL measurements were continued up to 14 days post-irradation. We have investigated the linearity of TL response as a function of dose for Ge-, Al-doped optical fibre and TLD-100 obtained for 6 and 10 MV photon irradiations. We have concentrated on doses that represent a small fraction of that delivered to the tumour to establish sensitivity of measurement for peripheral exposures in external beam radiotherapy.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Aluminum / chemistry*
Germanium / chemistry*
Optical Fibers*
Photons
Radiotherapy Dosage
Silicon Dioxide / radiation effects*
Thermoluminescent Dosimetry / methods*

Substances

Germanium
Silicon Dioxide
Aluminum