Replacement correction factors for electron measurements with a parallel-plate chamber
- 1 March 1987
- journal article
- research article
- Published by Wiley in Medical Physics
- Vol. 14 (2) , 216-217
- https://doi.org/10.1118/1.596073
Abstract
The AAPM Task Group dosimetry protocol is ambiguous regarding the replacement correction factors Prepl to be applied to electron measurements with parallel-plate chambers. By intercomparison with a cylindrical chamber whose Prepl values at dmax may be calculated from Task Group 21, the Prepl values for a PTW/Markus parallel-plate chamber have been determined in the range of mean incident energies of 5-11 MeV. The Prepl values for this chamber are found to differ significantly from unity, if one assumes that the cylindrical chamber values are valid.Keywords
This publication has 1 reference indexed in Scilit:
- Calibration and use of Plane-Parallel Ionization Chambers for the Determination of Absorbed Dose in Electron BeamsActa Radiologica: Oncology, 1981