Study on Neutron Sensitivity Calculation Model of Ex-core Neutron Detector

Liu Yaolong; Chen Zhi; Huang Youjun; Lin Chao; Gao Zhiyu; Luo Tingfang

doi:10.13832/j.jnpe.2024.03.0272

Volume 45 Issue 3

Jun. 2024

Turn off MathJax

Article Contents

Article Navigation > Nuclear Power Engineering > 2024 > 45(3): 272-278

Liu Yaolong, Chen Zhi, Huang Youjun, Lin Chao, Gao Zhiyu, Luo Tingfang. Study on Neutron Sensitivity Calculation Model of Ex-core Neutron Detector[J]. Nuclear Power Engineering, 2024, 45(3): 272-278. doi: 10.13832/j.jnpe.2024.03.0272

Citation:

Liu Yaolong, Chen Zhi, Huang Youjun, Lin Chao, Gao Zhiyu, Luo Tingfang. Study on Neutron Sensitivity Calculation Model of Ex-core Neutron Detector[J]. Nuclear Power Engineering, 2024, 45(3): 272-278. doi: 10.13832/j.jnpe.2024.03.0272

Citation:

PDF( 5953 KB)

Study on Neutron Sensitivity Calculation Model of Ex-core Neutron Detector

doi: 10.13832/j.jnpe.2024.03.0272

1.
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China
2.
University of South China, Hengyang, Hunan, 421200, China

Received Date: 2024-01-24
Rev Recd Date: 2024-02-29
Publish Date: 2024-06-13

Abstract

Abstract

Based on the Monte Carlo method, this thesis proposes a neutron sensitivity calculation model for the design and study of the performance of ex-core neutron detectors. Firstly, based on the physical principle of the detector, the influencing factors of neutron sensitivity are obtained. On this basis, the neutron field characteristics at the monitor holes are analyzed, and the neutron sensitivity calculation model is proposed. The calculation model is discussed to obtain the uncertainty analysis of the model. Finally, the model is verified, and the error between the calculated neutron sensitivity and the measured data is within the acceptable range, which verifies the feasibility of the model.
- Monte Carlo method,
- Ex-core neutron detector,
- Neutron sensitivity,
- Uncertainty analysis

FullText(HTML)

References(15)

References

[1]	廖俊辉,谢一冈,陈元柏,等. 用于热中子探测的正比管性能研究[J]. 核电子学与探测技术,2007, 27(2): 367-371. doi: 10.3969/j.issn.0258-0934.2007.02.057.
[2]	陈国云,魏志勇,辛勇,等. 涂硼电离室中子探测效率和灵敏度[J]. 原子能科学技术,2011, 45(2): 244-249.
[3]	赵江滨,何高魁,刘洋,等. 裂变电离室中子探测效率与灵敏度MC模拟[J]. 核电子学与探测技术,2022, 42(1): 89-93.
[4]	周治江,武文超,章航洲,等. 涂硼电离室中子灵敏度计算与验证[J]. 仪器仪表用户,2020, 27(12): 75-78. doi: 10.3969/j.issn.1671-1041.2020.12.019.
[5]	吴雄,蔡利,蒋洁琼,等. MC方法计算自给能铑中子探测器灵敏度[J]. 核电子学与探测技术,2022, 42(4): 634-639.
[6]	吴雄,蔡利,张香菊,等. 核反应堆瞬发型自给能中子探测器初始灵敏度研究[J]. 科技导报,2022, 40(24): 64-71.
[7]	于稼驷. β衰变型自给能堆芯中子探测器灵敏度数学模型[J]. 核安全,2023, 22(4): 94-106.
[8]	马彦良,欧阳晓平,王群书,等. 裂变靶探测系统中子灵敏度的理论计算[J]. 核技术,2009, 32(6): 473-476.
[9]	方美华,魏志勇,张紫霞,等. 涂硼正比计数管中热中子响应函数理论计算及模拟验证[J]. 南京航空航天大学学报,2012, 44(1): 81-86. doi: 10.16356/j.1005-2615.2012.01.023.
[10]	HANSON A O, MCKIBBEN J L. A neutron detector having uniform sensitivity from 10 KeV to 3 MeV[J]. Physical Review, 1947, 72(8): 673-677. doi: 10.1103/physrev.72.673
[11]	GOLDSTEIN N P. A Monte-Carlo calculation of the neutron sensitivity of self-powered detectors[J]. IEEE Transactions on Nuclear Science, 1973, 20(1): 549-556. doi: 10.1109/TNS.1973.4326961
[12]	FLAMMANG R W, SEIDEL J G, RUDDY F H. Fast neutron detection with silicon carbide semiconductor radiation detectors[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2007, 579(1): 177-179.
[13]	RAO P S, MISRA S C. Neutron sensitivity of vanadium self powered neutron detectors[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1986, 253(1): 57-60.
[14]	汲长松. 核辐射探测器及其实验技术手册[M]. 北京: 原子能出版社,1990: 4.
[15]	陈伯显,张智. 核辐射物理及探测学[M]. 哈尔滨: 哈尔滨工程大学出版社,2011: 448.