Determination of percentage depth dose for 6 and 10 MV x-rays using Ge-doped optical fibre and TLD-100

Abdulla, Y.A. and Amin, Y.M. and Khoo, H.B. (2002) Determination of percentage depth dose for 6 and 10 MV x-rays using Ge-doped optical fibre and TLD-100. Journal of Radiological Protection, 22 (4). pp. 417-421. ISSN 0952-4746

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Official URL: http://iopscience.iop.org/0952-4746/22/4/306;jsess...

Abstract

Percentage depth doses for 6 and 10 MV x-ray beams from a linear accelerator were measured using ~1 cm long (~0.3 mg) Ge-doped optical fibre as a thermoluminescence dosimeter for two field sizes, 5 × 5 and 10 × 10 cm2. The results indicate that the Ge-doped optical fibre dosimeter is in good agreement with the results from a PTW 30001 cylindrical ionisation chamber and TLD-100. For 6 MV x-ray beams we observe that the depth of maximum dose dmax is 1.5 and 2 cm for field sizes of 5 × 5 and 10 × 10 cm2 respectively. For 10 MV dmax is 2 cm for a field size of 5 × 5 cm2 and 2.5 cm for a 10 × 10 cm2 field.

Item Type: Article
Uncontrolled Keywords: Optics, quantum optics and lasers; Medical physics; Condensed matter: structural, mechanical & thermal
Subjects: Q Science > Q Science (General)
Divisions: Faculty of Science
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 16 Jan 2015 07:13
Last Modified: 16 Jan 2015 07:13
URI: http://eprints.um.edu.my/id/eprint/12149

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