Thermoluminescence Dosimetric Properties of Ge- and Er-Doped Optical Fibres and Their Application in The Measurement of Depth -Dose in Solid Water Phanthom

Amin, Y.M. and Abdulla, Y.A. and Khoo, B.H. (2001) Thermoluminescence Dosimetric Properties of Ge- and Er-Doped Optical Fibres and Their Application in The Measurement of Depth -Dose in Solid Water Phanthom. Journal of Radiation Protection, 26 (3). pp. 143-147. ISSN 0253-4231

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Abstract

The dosimetric properties of Ge- and Er-doped optical fibres are studied. The Ge-doped fibre is found to be more sensitive to radiation and there is little fading of TL signal compared with Er-doped fibre. The Ge- and Er-doped fibres showed a linear response over a range of to about 120 Gy and to about 250Gy respectively. The Ge-doped fibre is found to be dose-rate independent both for photons and electron beams of energy ranging from 6 to 10 MeV and 6 to 12 MeV respectively. The fibre is energy independent for energy greater than for photon or 0.1 MeV for electron beam. From the depth-dose measurement, it was found that the position of maximum dose, dmax, increased with increasing energy ranging from and for 6 MeV and 10 MeV photons respectively. The central axis percentage depth dose at 10 cm depth was found to be in good agreement with the value obtained using ionization chamber.

Item Type: Article
Uncontrolled Keywords: Thermoluminescence Dosimetric Properties; Ge- and Er-Doped Optical Fibres; Depth -Dose; Solid Water Phanthom
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 16 Jan 2015 01:56
Last Modified: 16 Jan 2015 01:56
URI: http://eprints.um.edu.my/id/eprint/12146

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