Effects due to a Pu-C source on a HPGe detector and the corresponding neutron shielding

• 来源期刊: 中国物理C(英文版)
• 学科: 物理学
• 年，卷（期）: 2011,（7）
• 页码范围: 660-667
• 页数: 8页
• 分类号: O572.212
• 语种: 英文
• DOI: 10.1088/1674-1137/35/7/011

摘要

A gamma spectrum of a Pu-C source is measured using a p-type HPGe detector, whose three peaks (full energy, single-escape and double-escape peak) can be used as a calibration source for the beam energy measurement system of BEPCII. The effect of fast neutron damage on the energy resolution of the HPGe detector is studied, which indicates that the energy resolution begins to deteriorate when the detector is subject to 2*107 n/cm2 fast neutrons. The neutron damage mechanism and detector repair methods are rev...