Electron dosimetry based on the absorbed dose to water concept: A comparison of the AAPM TG-51 and DIN 6800-2 protocols

Authors
Dohm, OS Christ, G Nusslin, F Schule, E Bruggmoser, G
Citation
Os. Dohm et al., Electron dosimetry based on the absorbed dose to water concept: A comparison of the AAPM TG-51 and DIN 6800-2 protocols, MED PHYS, 28(11), 2001, pp. 2258-2264
Citations number
16
Categorie Soggetti
Radiology ,Nuclear Medicine & Imaging","Medical Research Diagnosis & Treatment
Journal title
MEDICAL PHYSICS
ISSN journal
00942405 → ACNP
Volume
28
Issue
11
Year of publication
2001
Pages
2258 - 2264
Database
ISI
SICI code
0094-2405(200111)28:11<2258:EDBOTA>2.0.ZU;2-X
Abstract
The dosimetry protocols DIN 6800-2 and AAPM TG-51, both based on the absorb ed dose to water concept, are compared in their theoretical background and in their application to electron dosimetry. The agreement and disagreement in correction factors and energy parameters used in both protocols will be shown and discussed. Measurements with three different types of ionization chambers were performed and evaluated according to both protocols. As a res ult the perturbation correction factor P-wall(60Co) for the Roos chamber wa s determined to 1.024 +/- 0.5%. (C) 2001 American Association of Physicists in Medicine.