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CALIBRATION OF GAFCHROMIC EBT3 FILM FOR DOSIMETRY OF SCANNING PROTON PENCIL BEAM (PBS)
Stockholm University, Faculty of Science, Department of Physics.
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Number of Authors: 72018 (English)In: Radiation Protection Dosimetry, ISSN 0144-8420, E-ISSN 1742-3406, Vol. 180, no 1-4, p. 324-328Article in journal (Refereed) Published
Abstract [en]

Gafchromic EBT3 films are applied in proton radiotherapy for 2D dose mapping because they demonstrate spatial resolution well below 1mm. However, the film response must be corrected in order to reach the accuracy of dose measurements required for the clinical use. The in-house developed AnalyseGafchromic software allows to analyze and correct the measured response using triple channel dose calibration, statistical scan-to-scan fluctuations as well as experimentally determined dose and LET dependence. Finally, the optimized protocol for evaluation of response of Gafchromic EBT3 films was applied to determine 30 x 40 cm(2) dose profiles of the scanning therapy unit at the Cyclotron Centre Bronowice, CCB in Krakow, Poland.

Place, publisher, year, edition, pages
2018. Vol. 180, no 1-4, p. 324-328
National Category
Radiology, Nuclear Medicine and Medical Imaging
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URN: urn:nbn:se:su:diva-160261DOI: 10.1093/rpd/ncx304ISI: 000440983000068PubMedID: 29351653OAI: oai:DiVA.org:su-160261DiVA, id: diva2:1249428
Available from: 2018-09-19 Created: 2018-09-19 Last updated: 2018-09-19Bibliographically approved

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