Journal article
Comparison of the recommendations of the AAPM TG‐51 and TG‐51 addendum reference dosimetry protocols
Journal of applied clinical medical physics, Vol.18(4), pp.140-143
Jul 2017
PMID: 28574211
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This work quantified differences between recommendations of the
TG
‐51 and
TG
‐51 addendum reference dosimetry protocols. Reference dosimetry was performed for flattened photon beams with nominal energies of 6, 10, 15, and 23
MV
, as well as flattening‐filter free (
FFF
) beam energies of 6 and 10
MV
, following the recommendations of both the
TG
‐51 and
TG
‐51 addendum protocols using both a Farmer
®
ionization chamber and a scanning ionization chamber with calibration coefficients traceable to absorbed dose‐to‐water (
D
w
) standards. Differences in
D
w
determined by the two protocols were 0.1%–0.3% for beam energies with a flattening filter, and up to 0.2% and 0.8% for
FFF
beams measured with the scanning and Farmer
®
ionization chambers, respectively, due to
k
Q
determination, volume‐averaging correction, and collimator jaw setting. Combined uncertainty was between 0.91% and 1.2% (
k
= 1), varying by protocol and detector.
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Details
- Title
- Comparison of the recommendations of the AAPM TG‐51 and TG‐51 addendum reference dosimetry protocols
- Creators
- Travis J. McCaw - University of Wisconsin–MadisonMin‐Sig Hwang - UPMC Hillman Cancer CenterSi Young Jang - UPMC Hillman Cancer CenterM. Saiful Huq - UPMC Hillman Cancer Center
- Publication Details
- Journal of applied clinical medical physics, Vol.18(4), pp.140-143
- Publisher
- John Wiley and Sons Inc
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Radiation Oncology (and Nuclear Medicine)
- Identifiers
- 991021897323404721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Radiology, Nuclear Medicine & Medical Imaging