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Verification of a non-diffusing gel dosimeter

Citation

Davies, JB and Bosi, SG and Baldock, C, Verification of a non-diffusing gel dosimeter, 7th International Conference on 3D Radiation Dosimetry (IC3DDose), Sydney, Australia, 4-8 November 2012, Journal of Physics: Conference Series, 444, pp. 1-4. ISSN 1742-6588 (2013) [Refereed Conference Paper]


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DOI: doi:10.1088/1742-6596/444/1/012040

Abstract

An evaluation of the diffusion coefficient of a genipin-gelatin gel dosimeter was carried out by fitting an inverse square root function to image profile data. A comparison was made with a Fricke-gelatin-xylenol orange (FGX) gel dosimeter, in which the ions are known to diffuse. The diffusion coefficient for this FGX gel, consisting of 0.5 mM ferrous ammonium sulphate, 50 mM sulphuric acid, 0.15 mM xylenol orange and 3 % by weight gelatin was 0.70 0.05 mm2 h−1 at 5 Gy. The genipin-gelatin gel consisted of 50 μM genipin, 4 % by weight gelatin and 100 mM sulphuric acid. The fitted parameter that is proportional to the diffusion coefficient did not significantly change over time, demonstrating that this genipin-gelatin gel is a non-diffusing dosimeter.

Item Details

Item Type:Refereed Conference Paper
Keywords:radiation dosimetry, gel dosimetry
Research Division:Physical Sciences
Research Group:Other Physical Sciences
Research Field:Medical Physics
Objective Division:Health
Objective Group:Other Health
Objective Field:Health not elsewhere classified
Author:Baldock, C (Professor Clive Baldock)
ID Code:116129
Year Published:2013
Deposited By:Research Operations
Deposited On:2017-05-02
Last Modified:2017-11-01
Downloads:6 View Download Statistics

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