A hybrid radiation detector for simultaneous spatial and temporal dosimetry

Poole, C, Trapp, J, Kenny, J, Kairn, T, Williams, K, Taylor, M, Franich, R and Langton, C 2011, 'A hybrid radiation detector for simultaneous spatial and temporal dosimetry', Australasian Physical & Engineering Science in Medicine, vol. 34, no. 3, pp. 327-332.

Document type: Journal Article
Collection: Journal Articles

Title A hybrid radiation detector for simultaneous spatial and temporal dosimetry
Author(s) Poole, C
Trapp, J
Kenny, J
Kairn, T
Williams, K
Taylor, M
Franich, R
Langton, C
Year 2011
Journal name Australasian Physical & Engineering Science in Medicine
Volume number 34
Issue number 3
Start page 327
End page 332
Total pages 6
Publisher Springer Netherlands
Abstract In this feasibility study an organic plastic scintillator is calibrated against ionisation chamber measurements and then embedded in a polymer gel dosimeter to obtain a quasi-4D radiation detector. This hybrid dosimeter was irradiated with megavoltage x-rays from a linear accelerator, with temporal measurements of the dose rate being acquired by the scintillator and spatial measurements acquired with the gel dosimeter. The detectors employed in this study are radiologically equivalent; and we show that neither detector perturbs the intensity of the radiation field of the other. By employing these detectors in concert, spatial and temporal variations in the radiation intensity can now be detected and gel dosimeters can be calibrated for absolute dose from a single irradiation.
Subject Medical Physics
Keyword(s) Radiotherapy
Gel dosimetry
Radiation measurement
4D dosimetry
DOI - identifier 10.1007/s13246-011-0081-5
Copyright notice © Australasian College of Physical Scientists and Engineers in Medicine 2011
ISSN 0158-9938
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