Variance analysis for passive neutron multiplicity counting

被引：0

作者：

Chen Li-Gao ^{[1
,2
]}

Gong Jian ^{[1
]}

Wang Kan ^{[2
]}

Xie Qi-Lin ^{[1
]}

Liu Xiao-Bo ^{[1
]}

Bai Zhong-Xiong ^{[1
]}

Lu Yi ^{[1
]}

Rong Ru ^{[1
]}

Yin Yan-Peng ^{[1
]}

机构：

[1] China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Peoples R China

[2] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

来源：

NUCLEAR SCIENCE AND TECHNIQUES | 2015年 / 26卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Arms control and disarmament; Neutron multiplicity counting; Variance analysis; Plutonium; Neutron counting; SIMULATION;

D O I：

10.13538/j.1001-8042/nst.26.20402

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Passive neutron multiplicity counting is widely used as a nondestructive assay technique to quantify mass of plutonium material. One goal of this technique is to achieve good precision in a short measurement time. In this paper, we describe a procedure to derive mass assay variance for multiplicity counting based on the three-parameter model, and analytical equations are established using the measured neutron multiplicity distribution. Monte Carlo simulations are performed to evaluate precision versus plutonium mass under a fixed measurement time with the equations. Experimental data of seven weapons-grade plutonium samples are presented to test the expected performance. This variance analysis has been used for the counter design and optimal gate-width setting at Institute of Nuclear Physics and Chemistry.

引用

页数：5

共 50 条

[1] Variance analysis for passive neutron multiplicity counting
陈利高
龚建
王侃
谢奇林
刘晓波
白忠雄
鲁艺
荣茹
尹延朋
Nuclear Science and Techniques, 2015, 26 (02) : 58 - 62
[2] Monte Carlo simulation of the passive neutron multiplicity counting system
Yong, Jinlong
Zhang, Wei
Song, Yushou
Wang, Xin
Zhao, Yunlong
Hou, Yingwei
Hu, Liyuan
Li, Yao
He, Shizheng
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2023, 1056
[3] Estimating the mass variance in neutron multiplicity counting-A comparison of approaches
Dubi, C.
Croft, S.
Favalli, A.
Ocherashvili, A.
Pedersen, B.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2017, 875 : 125 - 131
[4] Feynman variance-to-mean in the context of passive neutron coincidence counting
Croft, S.
Favalli, A.
Hauck, D. K.
Henzlova, D.
Santi, P. A.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2012, 686 : 136 - 144
[5] Passive fast neutron multiplicity counting system based on a symmetric spherical design
Liu, Yuezhuang
Zhang, Shaodong
Lin, Xurun
Zhou, Zhibo
Li, Duohong
Li, Mengyuan
Jin, Baoliang
Li, Meng
Zhang, Qi
Li, Da
Wu, Zhaohui
Zhang, Xiaodong
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 2025,
[6] Identifying neutron shielding in neutron multiplicity counting
Heger, G.
Dubi, C.
Ocherashvili, A.
Beck, A.
Pedersen, B.
Gilad, E.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2018, 901 : 40 - 45
[7] Sensitivity analysis of physical/operational parameters in neutron multiplicity counting
Peerani, P.
Ferrer, M. Marin
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2007, 577 (03): : 682 - 689
[8] Assessment of uncertainties in Neutron Multiplicity Counting
Peerani, P.
Ferrer, M. Marin
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2008, 589 (02): : 304 - 309
[9] Algorithm and experiment analysis on 252Cf neutron strength with neutron multiplicity counting
Chen, Li-Gao
Gong, Jian
Wang, Kan
Xie, Qi-Lin
Liu, Xiao-Bo
Fan, Xiao-Qiang
Yuanzineng Kexue Jishu/Atomic Energy Science and Technology, 2014, 48 : 14 - 17
[10] Dead time corrections for neutron multiplicity counting
Croft, S.
Favalli, A.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2012, 686 : 115 - 116

← 1 2 3 4 5 →