Nuclear Techniques ›› 2019, Vol. 42 ›› Issue (7): 0-070401-5.doi: 10.11889/j.0253-3219.2019.hjs.42.070401
• NUCLEAR ELECTRONICS AND INSTRUMENTATION •
Jun ZENG,Qingpei XIANG(
),Yingzeng ZHANG,Rende ZE,Yongchun XIANG,Fanhua HAO
Received:2019-03-18
Revised:2019-04-28
Online:2019-07-10
Published:2019-07-16
Contact:
Qingpei XIANG
E-mail:xiangqingpei@163.com
About author:ZENG Jun, male, born in 1988, graduated from Sichuan University with a master’s degree in 2013, focusing on radiation measurement and application
Supported by:CLC Number:
Jun ZENG,Qingpei XIANG,Yingzeng ZHANG,Rende ZE,Yongchun XIANG,Fanhua HAO. Study on the neutron detection efficiency and gamma discrimination of boron-coated straw detectors[J].Nuclear Techniques, 2019, 42(7): 0-070401-5.
Fig.1
The structure diagram of boron-coated straws detectors"
Fig.2
The layout of experiment setup (a) and simplified Monte-Carlo model (b)"
Fig.3
The distribution of background signal with different hardware threshold"
Fig.4
The axial distribution of background counts with different hardware threshold"
Fig.5
The background image with hardware threshold of 30 mV (a), 50 mV (b), 100 mV (c)"
Fig.6
Signals analysis with different hardware threshold"
Table 1
Gamma detection efficiency with different software threshold"
| A+B | C BK | C Cs | C Cs-C BK | D |
|---|---|---|---|---|
| 0 | 839 | 1 899 | 1 060 | 1.13×10-6 |
| 50 | 839 | 1 897 | 1 058 | 1.13×10-6 |
| 100 | 839 | 1 892 | 1 053 | 1.13×10-6 |
| 150 | 809 | 1 223 | 414 | 4.43×10-7 |
| 200 | 785 | 843 | 58 | 6.21×10-8 |
| 250 | 768 | 764 | -4 | ― |
| 300 | 763 | 749 | -14 | ― |
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