Compton suppression in BEGe detectors by digital pulse shape analysis

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• 作者：Yu-Hao Mi ; Hao Ma ; Zhi Zeng ; ^{zengzhi@tsinghua.edu.cn} ; Jian-Ping Cheng ; Jun-Li Li ; Hui Zhang
• 关键词：PSA ; PSD ; Compton suppression ; BEGe
• 刊名：Applied Radiation and Isotopes
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：121
• 期：Complete
• 页码：96-100
• 全文大小：627 K
• 卷排序：121

文摘

A new PSD method was developed to suppress Compton-continuum in BEGe detectors by offline digital PSA. Pulse shapes from the preamplifier were digitized and saved while no other analog electronics were used. A decision parameter defined as the ratio of a smaller rise time parameter to r90 was presented and proved to be effective. The 60Co P/C ratio and the Cs-P/Co-C ratio can be improved by more than two and three times respectively.