A comparative study of the effect of calibration conditions on the water equivalence of a range of gel dosimeters

Taylor, Michael, Franich, Rick, Trapp, Jamie, & Johnston, Peter (2007) A comparative study of the effect of calibration conditions on the water equivalence of a range of gel dosimeters. In Yu, B. (Ed.) 2007 IEEE Nuclear Science Symposium Conference Record. IEEE, Piscataway, NJ, USA, pp. 3170-3175.

This is the latest version of this eprint.

View at publisher


Gel dosimeters are of increasing interest in the field of radiation oncology as the only truly three-dimensional integrating radiation dosimeter. There are a range of ferrous-sulphate and polymer gel dosimeters. To be of use, they must be water-equivalent. On their own, this relates to their radiological properties as determined by their composition. In the context of calibration of gel dosimeters, there is the added complexity of the calibration geometry; the presence of containment vessels may influence the dose absorbed. Five such methods of calibration are modelled here using the Monte Carlo method. It is found that the Fricke gel best matches water for most of the calibration methods, and that the best calibration method involves the use of a large tub into which multiple fields of different dose are directed. The least accurate calibration method involves the use of a long test tube along which a depth dose curve yields multiple calibration points.

Impact and interest:

1 citations in Scopus
Search Google Scholar™

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

Full-text downloads:

86 since deposited on 06 Oct 2010
25 in the past twelve months

Full-text downloads displays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.

ID Code: 37732
Item Type: Book Chapter
Keywords: Radiotherapy, Gel dosimetry, Monte Carlo
DOI: 10.1109/NSSMIC.2007.4436800
ISBN: 1424409233
ISSN: 1082-3654
Subjects: Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > OTHER PHYSICAL SCIENCES (029900) > Medical Physics (029903)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Schools > Physics
Copyright Owner: Copyright 2007 IEEE
Deposited On: 06 Oct 2010 00:20
Last Modified: 10 Oct 2015 14:13

Available Versions of this Item

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page