Calibration of dosemeters used in mammography with different X ray qualities: EUROMET Project No. 526
1.
SYSNO ASEP
0100841
Document Type
J - Journal Article
R&D Document Type
Journal Article
Subsidiary J
Ostatní články
Title
Calibration of dosemeters used in mammography with different X ray qualities: EUROMET Project No. 526
Title
Kalibrace dozimetrů používaných při mamografii s různou kvalitou záření
Author(s)
Witzani, J. (AT) Bjerke, H. (NO) Bochud, F. (CH) Csete, I. (HU) Denoziere, M. (FR) de Vries, W. (NL) Ennow, K. (DE) Grindborg, J. (SE) Hourdakis, C. (GR) Kosunen, A. (FI) Kramer, H. M. (DE) Pernička, František (UJF-V) Sander, T. (GB)
Source Title
Radiation Protection Dosimetry. - : Oxford University Press
- ISSN 0144-8420
Roč. 108, č. 1 (2004), s. 33-45
Number of pages
13 s.
Language
eng - English
Country
GB - United Kingdom
Keywords
calibration ; dosemeters ; mammography
Subject RIV
FD - Oncology ; Hematology
CEZ
AV0Z1048901 - UJF-V
Annotation
The effect of different X ray radiation qualities on the calibration of mammographic dosemeters was investigated within the framework of a EUROMET (European Collaboration in Measurement Standards) project. The calibration coefficients for two ionization chambers and two semiconductor detectors were established in 13 dosimetry calibration laboratories for radiation qualities used in mammography. They were compared with coefficients for other radiation qualities, including those defined in ISO 4037-1, with first half value layers in the mammographic range. The results indicate that the choice of the radiation quality is not crucial for instruments with a small energy dependence of the response. However, the radiation quality has to be chosen carefully if instruments with a marked dependence of their response to the radiation energy are calibrated
