title: Compton suppression in BEGe detectors by digital pulse shape analysis.
abstract: A new method of pulse shape discrimination (PSD) for BEGe detectors is developed to suppress Compton-continuum by digital pulse shape analysis (PSA), which helps reduce the Compton background level in gamma ray spectrometry. A decision parameter related to the rise time of a pulse shape was presented. The method was verified by experiments using60Co and137Cs sources. The result indicated that the60Co Peak to Compton ratio and the Cs-Peak to Co-Compton ratio could be improved by more than two and three times, respectively.
authors.affiliation: Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084, China.
authors.forename: Yu-Hao
authors.initials: YH
authors.lastname: Mi
authors.affiliation: Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Ma
authors.affiliation: Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084, China. Electronic address: zengzhi@tsinghua.edu.cn.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Zeng
authors.affiliation: Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084, China.
authors.forename: Jian-Ping
authors.initials: JP
authors.lastname: Cheng
authors.affiliation: Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084, China.
authors.forename: Jun-Li
authors.initials: JL
authors.lastname: Li
authors.affiliation: Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang
keywords: BEGe; Compton suppression; PSA; PSD