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Polarity and ion recombination correction factors for ionization chambers employed in electron beam dosimetry
1Department of Medical Physics and Medical Engineering, University of Edinburgh, Western General Hospital, UK.
Physics in Medicine and Biology
|March 24, 1998
Abstract:
Polarity and ion recombination correction factors for the NACP (type-02) design parallel-plate ionization chamber employed in a recent UK national electron beam dosimetry intercomparison are derived over the full range of energies and measurement conditions encountered. In addition, these effects have been studied for a further four NACP chambers, a Markus parallel-plate chamber, a Roos parallel-plate chamber and a NE2571 graphite walled cylindrical ionization chamber.