Determination of full-energy peak efficiency at the center position of a through-hole-type clover detector between 0.05 MeV and 3.2 MeV by source measurements and Monte Carlo simulations

Abstract

Full-energy peak efficiency at the center position of a through-hole-type clover detector was determined by the measurement of standard sources and by Monte Carlo simulation. The coincidence summing under the large-solid-angle condition was corrected using Monte Carlo calculation based on the specific decay scheme for 133Ba, 152,154Eu, and 56Co. This allowed the peak efficiency to be extended from 0.05MeV to 3.2MeV with an approximate uncertainty of 3%.