Establishment of Ge-doped optical fibres as thermoluminescence dosimeters for brachytherapy

Establishment of Ge-doped optical fibres as thermoluminescence dosimeters for brachytherapy

This study aims to establish the sensitive, ~120μm high spatial resolution, high dynamic range Ge-doped optical fibres as thermoluminescence (TL) dosimeters for brachytherapy dose distribution. This requires investigation to accommodate sensitivity of detection, both for the possibility of short ran...

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Published in:Applied Radiation and Isotopes
Main Author: Issa F.; Abdul Rahman A.T.; Hugtenburg R.P.; Bradley D.A.; Nisbet A.
Format: Article
Language:English
Published: 2012
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84862235900&doi=10.1016%2fj.apradiso.2011.12.027&partnerID=40&md5=04bf1ded949d9d9d46fc9699fdcfdc2c
id 2-s2.0-84862235900
spelling 2-s2.0-84862235900
Issa F.; Abdul Rahman A.T.; Hugtenburg R.P.; Bradley D.A.; Nisbet A.
Establishment of Ge-doped optical fibres as thermoluminescence dosimeters for brachytherapy
2012
Applied Radiation and Isotopes
70
7
10.1016/j.apradiso.2011.12.027
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84862235900&doi=10.1016%2fj.apradiso.2011.12.027&partnerID=40&md5=04bf1ded949d9d9d46fc9699fdcfdc2c
This study aims to establish the sensitive, ~120μm high spatial resolution, high dynamic range Ge-doped optical fibres as thermoluminescence (TL) dosimeters for brachytherapy dose distribution. This requires investigation to accommodate sensitivity of detection, both for the possibility of short range dose deposition from beta components as well as gamma/x-mediated dose. In-air measurements are made at distances close to radionuclide sources, evaluating the fall off in dose along the transverse axis of 133Ba and 60Co radioactive sources, at distances from 2mm up to 20mm from their midpoints. Measurements have been compared with Monte Carlo code DOSRZnrc simulations for photon-mediated dose only, agreement being obtained to within 3% and 1% for the 133Ba and 60Co sources, respectively. As such, in both cases it is determined that as intended, beta dose has been filtered out by source encapsulation. © 2012 Elsevier Ltd.

18729800
English
Article
author Issa F.; Abdul Rahman A.T.; Hugtenburg R.P.; Bradley D.A.; Nisbet A.
spellingShingle Issa F.; Abdul Rahman A.T.; Hugtenburg R.P.; Bradley D.A.; Nisbet A.
Establishment of Ge-doped optical fibres as thermoluminescence dosimeters for brachytherapy
author_facet Issa F.; Abdul Rahman A.T.; Hugtenburg R.P.; Bradley D.A.; Nisbet A.
author_sort Issa F.; Abdul Rahman A.T.; Hugtenburg R.P.; Bradley D.A.; Nisbet A.
title Establishment of Ge-doped optical fibres as thermoluminescence dosimeters for brachytherapy
title_short Establishment of Ge-doped optical fibres as thermoluminescence dosimeters for brachytherapy
title_full Establishment of Ge-doped optical fibres as thermoluminescence dosimeters for brachytherapy
title_fullStr Establishment of Ge-doped optical fibres as thermoluminescence dosimeters for brachytherapy
title_full_unstemmed Establishment of Ge-doped optical fibres as thermoluminescence dosimeters for brachytherapy
title_sort Establishment of Ge-doped optical fibres as thermoluminescence dosimeters for brachytherapy
publishDate 2012
container_title Applied Radiation and Isotopes
container_volume 70
container_issue 7
doi_str_mv 10.1016/j.apradiso.2011.12.027
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84862235900&doi=10.1016%2fj.apradiso.2011.12.027&partnerID=40&md5=04bf1ded949d9d9d46fc9699fdcfdc2c
description This study aims to establish the sensitive, ~120μm high spatial resolution, high dynamic range Ge-doped optical fibres as thermoluminescence (TL) dosimeters for brachytherapy dose distribution. This requires investigation to accommodate sensitivity of detection, both for the possibility of short range dose deposition from beta components as well as gamma/x-mediated dose. In-air measurements are made at distances close to radionuclide sources, evaluating the fall off in dose along the transverse axis of 133Ba and 60Co radioactive sources, at distances from 2mm up to 20mm from their midpoints. Measurements have been compared with Monte Carlo code DOSRZnrc simulations for photon-mediated dose only, agreement being obtained to within 3% and 1% for the 133Ba and 60Co sources, respectively. As such, in both cases it is determined that as intended, beta dose has been filtered out by source encapsulation. © 2012 Elsevier Ltd.
publisher
issn 18729800
language English
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