Application of a post-acquisition pileup correction algorithm to high count rate Ge spectra

Abstract

Summary form only. A technique for the post-acquisition correction of distortion in radiation spectra due to pulse pileup is considered. Data have been obtained showing the application of this method in removing pileup distortion from Ge spectra acquired at high count rates. The results obtained have been compared with spectra acquired using a hardware pulse pileup rejector under identical conditions. A method for determining the effective pulse rise-time of a given MCA system (as seen by the system ADC) has been considered and the relevant theory has been examined. It is based on the comparison of low and high count rate spectra acquired by the system at known input count rates.<>