Effects of radiation quality on the calibration of kerma-area product meters in x-ray beams

Physics in Medicine and Biology
P ToroiMarkku Tapiovaara

Abstract

The calibration coefficients of kerma-area product meters significantly depend on the energy spectrum of the x-ray beam. This effect was examined by measuring the calibration coefficients for several radiation qualities in the range generally used in diagnostic x-ray imaging. The intention was to determine the calibration coefficients for other radiation qualities by interpolation between the measured values, relative to one or more suitable parameters. The x-ray tube voltage, total filtration and half-value thickness were examined as possible specifiers of the energy distribution. No single parameter provided an interpolation of calibration coefficients with the accuracy recommended by the ICRU and IAEA, except for a narrow range of radiation qualities. At least two of the parameters are needed to reliably specify the radiation quality for the interpolation of calibration coefficients.

Citations

Apr 28, 2012·Radiation Protection Dosimetry·K MerimaaP Toroi
Dec 27, 2011·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Vitor VivoloLinda V E Caldas
Jul 27, 2010·European Journal of Radiology·Ahmed MeghzifeneHans-Michael Kramer
Dec 15, 2015·Radiation Protection Dosimetry·E KaravasilisE Yakoumakis
Jun 15, 2018·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·A AlménM Båth
Nov 20, 2018·Radiation Protection Dosimetry·Vasileios I MetaxasGeorge S Panayiotakis
Apr 9, 2009·Physics in Medicine and Biology·P Toroi, A Kosunen
Feb 16, 2021·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·David Fernández BosmanMercè Ginjaume
May 12, 2021·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·D G SuttonJ C O'Neill
Aug 24, 2021·Radiation Protection Dosimetry·F Araki, S Umeno

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