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A genipin-gelatin gel dosimeter for radiation processing
Citation
Davies, JB and Bosi, SG and Baldock, C, A genipin-gelatin gel dosimeter for radiation processing, Radiation Physics and Chemistry, 81, (8) pp. 1263-1265. ISSN 0969-806X (2012) [Refereed Article]
Copyright Statement
Copyright 2011 Elsevier Ltd
DOI: doi:10.1016/j.radphyschem.2011.10.007
Abstract
Genipin, a fruit extract from Gardenia jasminoides Ellis, forms cross-links in solutions of gelatin, to form a blue hydrogel that bleaches quantitatively upon irradiation and the colour change can be measured with a spectrophotometer. With the addition of sulphuric acid this dosimeter is sufficiently sensitive for quality assurance of radiotherapy level dosimetry. Without sulphuric acid the gel has a reduced sensitivity and responds linearly with dose between 100 and 1000. Gy, making it potentially useful as a dosimeter for radiation processing applications such as the phytosanitary irradiation treatment of food. We investigated the dose response characteristics of this new formulation and found that the darker gels are more sensitive to dose and have a reduced uncertainty.
Item Details
Item Type: | Refereed Article |
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Keywords: | gel dosimetry, genipin, colour change, dose response, fruit extracts, gel dosimeter, gel dosimetry, genipin, irradiation treatment, phytosanitary, radiation processing, reduced sensitivity, dosimeters, electron beam pumping |
Research Division: | Physical Sciences |
Research Group: | Medical and biological physics |
Research Field: | Medical physics |
Objective Division: | Health |
Objective Group: | Other health |
Objective Field: | Other health not elsewhere classified |
UTAS Author: | Baldock, C (Professor Clive Baldock) |
ID Code: | 116130 |
Year Published: | 2012 |
Web of Science® Times Cited: | 16 |
Deposited By: | Strategic Research Funding |
Deposited On: | 2017-05-02 |
Last Modified: | 2017-11-01 |
Downloads: | 0 |
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