Simulation of large-scale fast neutron liquid scintillation detector

Get Citation
XING Hao-Yang, WANG Li, ZHU Jing-Jun, TANG Chang-Jian and YUE Qian. Simulation of large-scale fast neutron liquid scintillation detector[J]. Chinese Physics C, 2013, 37(2): 026003. doi: 10.1088/1674-1137/37/2/026003
XING Hao-Yang, WANG Li, ZHU Jing-Jun, TANG Chang-Jian and YUE Qian. Simulation of large-scale fast neutron liquid scintillation detector[J]. Chinese Physics C, 2013, 37(2): 026003.  doi: 10.1088/1674-1137/37/2/026003 shu
Milestone
Received: 2012-04-09
Revised: 2012-06-19
Article Metric

Article Views(1399)
PDF Downloads(284)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Simulation of large-scale fast neutron liquid scintillation detector

    Corresponding author: YUE Qian,

Abstract: Neutron background measurement is always very important for dark matter detection due to almost the same effect for the recoiled nucleus scattered off by the incident neutron and dark matter particle. For deep under-ground experiments, the flux of neutron background is so low that large-scale detection is usually necessary. In this paper, by using Geant4, the relationship between detection efficiency and volume is investigated, meanwhile, two geometrical schemes for this detection including a single large-sized detector and arrayed multi-detector are compared under the condition of the same volume. The geometrical parameters of detectors are filtrated and detection efficiencies obtained under the similar background condition of China Jingping Underground Laboratory (CJPL). The results show that for a large-scale Gd-doped liquid scintillation detector, the detection efficiency increases with the size of detector at the beginning and then trends toward a constant. Under the condition of the same length and cross section, the arrayed multi-detector has almost similar detection performance as the single large-sized detector, while too much detector number could cause degeneration of detection performance. Considering engineering factors, such as testing, assembling and production, the 4×4 arrayed detector scheme is flexible and more suitable. Furthermore, the conditions for using fast and slow signal coincidence detection and the detectable lower limit of neutron energy are evaluated by simulating the light process.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return