Extended Bonner sphere spectrometer for dynamic neutron spectrum on HL-2A

The extended Bonner sphere spectrometer （EBSS） at the HL-2A tokamak for the neutron spectrum is described. This device was developed on the basis of previous Bonner sphere spectrometry （BSS）, aiming to obtain a more accurate neutron spectrum in the HL-2A tokamak hall. The previous BSS contained eigh...

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Published inPlasma science & technology Vol. 19; no. 7; pp. 118 - 123
Main Author 蒋春雨 曹靖 刘子豪 蒋小菲 宋先瑛 张轶泼 阴泽杰
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.07.2017
Subjects
BSS
extended Bonner sphere spectrometer
Geant4
HL-2A装置
neutron spectrum
tokamak
中子能谱
中子谱
光谱仪
前置放大器
并行处理系统
Online AccessGet full text
ISSN1009-0630
1009-0630
DOI10.1088/2058-6272/aa667a

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Summary:The extended Bonner sphere spectrometer （EBSS） at the HL-2A tokamak for the neutron spectrum is described. This device was developed on the basis of previous Bonner sphere spectrometry （BSS）, aiming to obtain a more accurate neutron spectrum in the HL-2A tokamak hall. The previous BSS contained eight Bonner spheres （BS）. This EBSS contains 13 3He-filled detectors embedded in polyethylene spheres （PS）, pre-amplifiers, and a parallel processing data acquisition system （DAQ）. A response matrix is simulated in Geant4 taking the effect of the environment into account.
Bibliography:extended Bonner sphere spectrometer, neutron spectrum, tokamak
Chunyu JIANG 1,2,4, Jing CAO 1,2, Zihao LIU 1,2, Xiaofei JIANG1,2, Xianying SONG3, Yipo ZHANG 2, Zejie YIN 1,2（1 Department of Modern Physics, University of Science and Technology of China, Hefei 230026, People＇s Republic of China 2 State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, People＇s Republic of China 3 Southwestern Institute of Physics, Chengdu 610041, People＇s Republic of China）
34-1187/TL
The extended Bonner sphere spectrometer （EBSS） at the HL-2A tokamak for the neutron spectrum is described. This device was developed on the basis of previous Bonner sphere spectrometry （BSS）, aiming to obtain a more accurate neutron spectrum in the HL-2A tokamak hall. The previous BSS contained eight Bonner spheres （BS）. This EBSS contains 13 3He-filled detectors embedded in polyethylene spheres （PS）, pre-amplifiers, and a parallel processing data acquisition system （DAQ）. A response matrix is simulated in Geant4 taking the effect of the environment into account.
PST-2016-0318.R2
Institute of Plasma Physics
ISSN:1009-0630
1009-0630
DOI:10.1088/2058-6272/aa667a