Thermoluminescence dosimetric characteristics of fabricated germanium (Ge) doped optical fibres for electron beams dosimetry: a preliminary study
The basic dosimetric favourable responses of tailored fabricated germanium (Ge) doped cylindrical optical fibres, make use of 2.3% mol have been extensively studied with clinical electron beams irradiation in terms of dose linearity, reproducibility, fading signals, minimum detectable dose (MDD),...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2020
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| Online Access: | http://journalarticle.ukm.my/15791/ http://journalarticle.ukm.my/15791/1/20.pdf |
| Summary: | The basic dosimetric favourable responses of tailored fabricated germanium (Ge) doped cylindrical optical fibres,
make use of 2.3% mol have been extensively studied with clinical electron beams irradiation in terms of dose linearity,
reproducibility, fading signals, minimum detectable dose (MDD), energy- and field size dependence. The irradiation was
performed at the Radiotherapy Unit, Advanced Medical and Dental Institute (AMDI), which utilizes Elekta Synergy®
linear accelerator (LINAC) at 6-, 9-, 12- and 15 MeV electron beam energies at specific doses ranging from 1 to 5
Gy. Thermoluminescence (TL) signals exhibited a linear dose-response overdose ranges, mean reproducibility with
a coefficient of variation (CV) of better than 10% and no dependency with different field sizes at p > 0.05. The MDD
values were typically 3.51 to 4.13 mGy. The minimum TL fading of the fabricated Ge-doped cylindrical optical fibres
was reported favourably for 9 MeV electron beam at day of 74. |
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