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Characterisation of Glass Beads for Radiotherapy Dosimetry

Jafari, S, Gouldstone, C, Sharpe, P H G, Bradley, D A, Clark, C H, Nisbet, A and Spyrou, N M (2013) Characterisation of Glass Beads for Radiotherapy Dosimetry In: 7th United Kingdom & Republic of Ireland Postgraduate Conference in Biomedical Engineering and Medical Physics (PGBiomed 2013), 9-11 July, 2013, Guildford, UK.

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Examinations have been made of a low cost commercially available material which is potentially useful as a dosimeter in radiotherapy. An investigation of the thermoluminescent (TL) yield and electron paramagnetic resonance (EPR) signal was performed by irradiating acid-washed glass jewellery beads to MV photons using a medical linear-accelerator and 60Co gamma rays. For comparison, irradiation exposures were also carried out on 5 mm length of Ge-doped optical fibres that have been widely investigated for their TL properties [1]. The dose response was linear for the investigated dose range of 1 to 2500 cGy, with an R2 correlation coefficient of > 0.999 and reproducibility of 1.7%. The results suggest the potential for use of glass beads as TL dosimeters in radiotherapy.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences
Faculty of Engineering and Physical Sciences > Physics
Authors :
Gouldstone, C
Sharpe, P H G
Bradley, D
Clark, C H
Spyrou, N
Date : September 2013
Copyright Disclaimer : Copyright 2013 University of Surrey
Depositing User : Diane Maxfield
Date Deposited : 07 Jun 2018 15:31
Last Modified : 16 Jan 2019 19:11

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