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  • Title: Low-dose photon irradiation response of Ge and Al-doped SiO2 optical fibres.
    Author: Yaakob NH, Wagiran H, Hossain MI, Ramli AT, Bradley DA, Ali H.
    Journal: Appl Radiat Isot; 2011 Sep; 69(9):1189-92. PubMed ID: 21507665.
    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.
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