Fast neutron radiography detector with polyethylene converter and MCP: development and performance evaluation

被引：1
作者：
Ma, Zhan-Wen [1 ,2 ]
Bai, Xiao-Hou [1 ]
Liu, Chang-Qi [1 ]
Hu, Zhi-Ming [1 ]
Huang, Chang [1 ]
Wang, Jun-Run [1 ,2 ]
Lu, Xiao-Long [1 ,2 ]
Wei, Zheng [1 ,2 ]
Zhang, Yu [1 ,2 ]
Yao, Ze-En [1 ,2 ]
机构：
[1] Lanzhou Univ, Sch Nucl Sci & Technol, Tianshui South Rd 222, Lanzhou 730000, Peoples R China
[2] Lanzhou Univ, Engn Res Ctr Neutron Applicat, Minist Educ, Tianshui South Rd 222, Lanzhou 730000, Peoples R China
来源：
JOURNAL OF INSTRUMENTATION | 2023年 / 18卷 / 08期
关键词：
Neutron detectors (cold; thermal; fast neutrons); Neutron radiography; Inspection with neutrons; Vacuum-based detectors; SPREAD-FUNCTION; OPTIMIZATION; SCINTILLATOR; DESIGN;
D O I：
10.1088/1748-0221/18/08/T08004
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We present a new position-sensitive fast neutron detector for 14 MeV fast neutron radiography, comprising a high-density polyethylene converter, a micro-channel plate (MCP), a P43 phosphor screen, a reflection mirror, and a CCD camera. Experimental tests are conducted using a DT neutron generator at CIAE, with different samples and a knife-edge measurement used to determine overall image resolution. Results show that the detector is feasible for fast neutron radiography, producing a fast neutron image with a neutron flux of similar to 3.22 x 104 n center dot s-1 center dot cm-2 and 120 s exposure time. Our study demonstrates the potential of this detector for use in fast neutron radiography applications.
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页数：11
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