Gafchromic film dosimetry: calibration methodology and error analysis

<strong>Purpose:</strong> To relate the physical transmittance parameters of the water equivalent Gafchromic EBT 2 Film with the delivered dose in a transparent absolute calibration protocol. The protocol should be easy to understand, easy to perform, and should be able to predict the re...

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Main Authors: Crijns, W, Maes, F, van Den Heuvel, F
Format: Journal article
Language:English
Published: 2011
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author Crijns, W
Maes, F
van Den Heuvel, F
author_facet Crijns, W
Maes, F
van Den Heuvel, F
author_sort Crijns, W
collection OXFORD
description <strong>Purpose:</strong> To relate the physical transmittance parameters of the water equivalent Gafchromic EBT 2 Film with the delivered dose in a transparent absolute calibration protocol. The protocol should be easy to understand, easy to perform, and should be able to predict the residual dose error. Conclussions : The gafchromic EBT2 Films are properly calibrated with an accessible robust calibration protocol. The protocol largely deals with the uniformity problems of the Film. The proposed method allowed to relate the dose with the red channel transmittance using only T0, T_inf, and a dose scaling factor. Based on the local and global uniformity the red channel dose errors could be predicted to be smaller than 5%.
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spelling oxford-uuid:45c6b506-1e58-4c4b-abb8-987cf5db6d102022-10-06T12:33:25ZGafchromic film dosimetry: calibration methodology and error analysisJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:45c6b506-1e58-4c4b-abb8-987cf5db6d10EnglishSymplectic Elements at Oxford2011Crijns, WMaes, Fvan Den Heuvel, F<strong>Purpose:</strong> To relate the physical transmittance parameters of the water equivalent Gafchromic EBT 2 Film with the delivered dose in a transparent absolute calibration protocol. The protocol should be easy to understand, easy to perform, and should be able to predict the residual dose error. Conclussions : The gafchromic EBT2 Films are properly calibrated with an accessible robust calibration protocol. The protocol largely deals with the uniformity problems of the Film. The proposed method allowed to relate the dose with the red channel transmittance using only T0, T_inf, and a dose scaling factor. Based on the local and global uniformity the red channel dose errors could be predicted to be smaller than 5%.
spellingShingle Crijns, W
Maes, F
van Den Heuvel, F
Gafchromic film dosimetry: calibration methodology and error analysis
title Gafchromic film dosimetry: calibration methodology and error analysis
title_full Gafchromic film dosimetry: calibration methodology and error analysis
title_fullStr Gafchromic film dosimetry: calibration methodology and error analysis
title_full_unstemmed Gafchromic film dosimetry: calibration methodology and error analysis
title_short Gafchromic film dosimetry: calibration methodology and error analysis
title_sort gafchromic film dosimetry calibration methodology and error analysis
work_keys_str_mv AT crijnsw gafchromicfilmdosimetrycalibrationmethodologyanderroranalysis
AT maesf gafchromicfilmdosimetrycalibrationmethodologyanderroranalysis
AT vandenheuvelf gafchromicfilmdosimetrycalibrationmethodologyanderroranalysis