Simulation study on DT fusion reaction history diagnosis based on 14 MeV neutron

Liu Bin; Hu Huasi; Lü Huanwen; Li Lan

doi:10.11884/HPLPB201830.170512

Volume 30 Issue 7

Jul. 2018

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Liu Bin, Hu Huasi, Lü Huanwen, et al. Simulation study on DT fusion reaction history diagnosis based on 14 MeV neutron[J]. High Power Laser and Particle Beams, 2018, 30: 072002. doi: 10.11884/HPLPB201830.170512

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Liu Bin, Hu Huasi, Lü Huanwen, et al. Simulation study on DT fusion reaction history diagnosis based on 14 MeV neutron[J]. High Power Laser and Particle Beams, 2018, 30: 072002. doi: 10.11884/HPLPB201830.170512

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Simulation study on DT fusion reaction history diagnosis based on 14 MeV neutron

doi: 10.11884/HPLPB201830.170512

Liu Bin^{1, 2
,},
Hu Huasi²,
Lü Huanwen¹,
Li Lan¹

1.
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610213, China
2.
School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China

Received Date: 2017-12-19
Rev Recd Date: 2018-03-13
Publish Date: 2018-07-15

Abstract

Abstract

Measurement of fusion reaction history by detecting the 16.7 MeV gamma-rays needs high neutron yield. For this reason, simulation study for fusion reaction history diagnosis with inelastic gammas generated by 14 MeV neutron interacting with the puck in front of (Gas Cherenkov Detector, GCD) was carried out. Material and thickness of the puck were determined by calculating energy spectrum of the secondary gamma and yield of gammas above the Cherenkov threshold. Cherenkov signal of the inelastic gammas through the GCD generated by interaction of 14 MeV neutron with the puck was simulated. Noises of gammas, electrons and positrons at the photo-electric conversion device were analyzed. Relation of the statistical fluctuations of the Cherenkov detection system and the fusion neutron yield was ascertained. Fusion neutron yield for fusion reaction history diagnosis by detecting 14 MeV neutron can decrease by two magnitudes in comparison with that by directly detecting 16.7 MeV gamma rays.
- inertial confinement fusion,
- gas Cherenkov detector system,
- 14 MeV neutron,
- fusion reaction history diagnosis

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References(12)

References

[1]	Leeper R J, Chandler G A, Cooper G A, et al. Target diagnostic system for the National Ignition Facility[J]. Review of Scientific Instruments, 1997, 68(1): 1223-1228.
[2]	Murphy T J, Barnes C W, Berggren R R, et al. Nuclear diagnostic for the National Ignition Facility[J]. Review of Scientific Instruments, 2001, 72(1): 773-779.
[3]	Medley S S, Cecil F E, Cole D, et al. Fusion gamma diagnostics[J]. Review of Scientific Instruments, 1985, 56(5): 975-977. doi: 10.1063/1.1138009
[4]	Lzumin M N, Lerche R A, Moran M J, et al. Nuclear diagnostics of ICF[C]//Italy: Advanced Diagnostics for Magnetic & Inertial Fusion, 2002: 99-106.
[5]	Berggren R R, Caldwell S E, Faulkner J R, et al. Gamma-ray-based fusion burn measurements[J]. Review of Scientific Instruments, 2001, 72(1): 873-876. doi: 10.1063/1.1321003
[6]	Malone R M, Herrmann H W, Stoeffl W, et al. Gamma bang time/reaction history diagnostics for the NIF using 90° off-axis parabolic mirrors[J]. Review of scientific instruments, 2008, 79: 10E532.
[7]	温树槐, 丁永坤. 激光惯性约束聚变诊断学[M]. 北京: 国防工业出版社, 2008: 102-118. Wen Shuhuai, Ding Yongkun. Laser inertial confinement fusion diagnostics. Beijing: National Defense Industry Press, 2008: 102-118
[8]	陈达. 关于测量不确定度[M]. 西安: 西北核技术研究所出版社, 1996: 4-11. Chen Da. About the uncertainties of the measurement. Xi'an: Press of the Northwest Institute of Nuclear Technology, 1996: 4-11
[9]	吕敏. 脉冲射线束测量中的统计起伏问题[J]. 物理学报, 1983, 32(2): 216-224. doi: 10.3321/j.issn:1000-3290.1983.02.009 Lü Min. Statistical fluctuation problem in pulsed radiation. Acta Physica Sinica, 1983, 32(2): 216-224 doi: 10.3321/j.issn:1000-3290.1983.02.009
[10]	刘斌, 胡华四. 氘氚聚变反应历史测量系统优化设计及亚纳秒信号恢复方法研究[J]. 原子能科学技术, 2017, 51(4): 713-720. https://www.cnki.com.cn/Article/CJFDTOTAL-YZJS201704023.htm Liu Bin, Hu Huasi. Optimization design on fusion reaction history diagnostic system and study on recovery method of sub-nanosecond signal. Atomic Energy Science and Technology, 2017, 51(4): 713-720 https://www.cnki.com.cn/Article/CJFDTOTAL-YZJS201704023.htm
[11]	Liu Bin, Hu Huasi, Zhang Tiankui, et al. Study on Geant4 simulation of GRH system and multiple-objective optimization of optical reflector system with genetic algorithm[J]. Fusion Science and Technology, 2014, 66(3): 405-413. doi: 10.13182/FST13-775
[12]	叶立润, 吕敏. 核爆炸和核诊断中的物理问题[J]. 物理, 1991, 20(9): 526-529. https://www.cnki.com.cn/Article/CJFDTOTAL-WLZZ199109002.htm Ye Lirun, Lü Min. Physical problems in nuclear implosion and diagnosis. Physics, 1991, 20(9): 526-529 https://www.cnki.com.cn/Article/CJFDTOTAL-WLZZ199109002.htm