Abstract
Thermoluminescence (TL) characteristics for various cross-sections of 6 mole% of tailor-made Ge-doped cylindrical optical fibers were determined. The general TL characteristic i.e., dose rate dependence, energy dependence, dose response and reproducibility of the samples have been investigated. The samples were irradiated using electron beam (Linac) and been exposed to dose ranging from 1 to 4 Gy. The cylindrical optical fibers provide highly linear dose response within the clinical relevant dose range, independence of radiation energy over the range of energies investigated, independence of dose rate and excellent reproducibility. This research shows that germanium doped silica fibers have high potential of dosimetric properties and suitable as TL-mode detectors in instances of radiotherapy (clinical dosimetry).
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