Neutron time-of-flight spectroscopy measurement using a waveform digitizer

被引：3
|
作者：
Liu, Long-Xiang [1 ,2 ]
Wang, Hong-Wei [1 ,2 ]
Ma, Yu-Gang [1 ]
Cao, Xi-Guang [1 ,2 ]
Cai, Xiang-Zhou [1 ]
Chen, Jin-Gen [1 ]
Zhang, Gui-Lin [1 ]
Han, Jian-Long [1 ]
Zhang, Guo-Qiang [1 ,2 ]
Hu, Ji-Feng [1 ]
Wang, Xiao-He [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
[2] Chinese Acad Sci, Key Lab Nucl Radiat & Nucl Technol, Shanghai 201800, Peoples R China
来源：
CHINESE PHYSICS C | 2016年 / 40卷 / 05期
基金：
中国国家自然科学基金;
关键词：
neutron spectroscopy; scintillator; waveform digitizer; pulse-shape discrimination (PSD); time-of-flight (TOF); FACILITY;
D O I：
10.1088/1674-1137/40/5/056202
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The photoneutron source (PNS, phase 1), an electron linear accelerator (linac)-based pulsed neutron facility that uses the time-of-flight (TOF) technique, was constructed for the acquisition of nuclear data from the Thorium Molten Salt Reactor (TMSR) at the Shanghai Institute of Applied Physics (SINAP). The neutron detector signal used for TOF calculation, with information on the pulse arrival time, pulse shape, and pulse height, was recorded by using a waveform digitizer (WFD). By using the pulse height and pulse-shape discrimination (PSD) analysis to identify neutrons and gamma-rays, the neutron TOF spectrum was obtained by employing a simple electronic design, and a new WFD-based DAQ system was developed and tested in this commissioning experiment. The DAQ system developed is characterized by a very high efficiency with respect to millisecond neutron TOF spectroscopy.
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页数：5
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