首页 > 论文 > 强激光与粒子束 > 28卷 > 5期(pp:56001--1)

散射中子对超瞬发临界系统动态行为的影响

Kinetic effect of scattering neutrons on super-prompt critical system

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

在点反应堆理论的基础上,建立了研究散射中子影响超瞬发临界系统动态行为的模拟计算方法,利用CFBR-Ⅱ堆的脉冲实验验证了该方法的正确性。通过分析计算表明,在超瞬发临界状态,散射中子的影响包括增加反应性、使脉冲波形后沿展宽和增加脉冲裂变产额。建立的模拟计算方法为预测脉冲堆外各种物体产生的散射中子的动力学效应提供了途径,对提高脉冲堆的核安全有应用价值。

Abstract

A numerical simulation method is built based on the point reactor kinetic equations to study the impact of scattering neutrons on a super-prompt critical system, and its correctness is validated by pulse experiment on CFBR-Ⅱ reactor. The analysis and calculation show that kinetic effects of the scattered neutrons in the super-prompt critical state include that the reactivity increases, the pulse wave is broadened, and the fission yield is enlarged by scattering neutrons. The numerical simulation method can be used to forecast the kinetic effect of scattered neutrons produced by objects out of the pulse reactor, and it is valuable to upgrade the nuclear safety of a pulse reactor.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:TL327

DOI:10.11884/hplpb201628.056001

所属栏目:核科学与工程

基金项目:中国工程物理研究院科学技术发展基金项目(2015B0103008)

收稿日期:2015-09-24

修改稿日期:2015-11-23

网络出版日期:--

作者单位    点击查看

李 兵:中国工程物理研究院 核物理与化学研究所, 四川 绵阳 621900
鲁 艺:中国工程物理研究院 核物理与化学研究所, 四川 绵阳 621900
高 辉:中国工程物理研究院 核物理与化学研究所, 四川 绵阳 621900

联系人作者:李兵(blifeact@163.com)

备注:李 兵(1968-),男,副研究员,从事核反应堆与核技术应用研究

【1】钟洁, 陈伟, 杨军, 等. 研究性核反应堆的现状应用和发展[J].物理, 2001, 30: 693-701.( Zhong Jie, Chen Wei, Yang Jun, et al. The status and future applications of nuclear research reactors. Physics, 2001, 30: 693-701)

【2】Kolesov V F, Vorontsov S V, Kuvshinov M I, et al. BIR and BIGR upgrade variants for enlarging their interior cavities[J].Atomic Energy, 2003, 94(3): 133-141.

【3】Mitchell G E, Furman W I, Lychagin E V, et al. Direct nn-scattering measurement with the pulsed reactor YAGUAR[J].Journal of Research of the National Institute of Standards and Technology, 2005, 110(3): 225-231.

【4】Fomushkin E, Novoselov G, Gavrilov V, et al. Investigations of neutron characteristics for salt blanket models: integral fission cross section measurements of neptunium, plutonium, americium and curium isotopes[R].LA-UR-01-5345, 2001.

【5】Papin J, Petit M, Betou J I, et al. Nuclear fuel behavor under reactivity-initiated accident(RIA) conditions[R].ISBN 978-92-64-99113-2 NEA/CSNI/R(2010)1, 2010.

【6】Bogdanov N, Il’in V I, Kolesov F, et al. Irradiating complex on BIGR reactor for simulation accidents of RIA type[C]//ICNC2003. 2003.

【7】Wimett T F, White R H, Stratton W R, et al. Godiva Ⅱ-An unmoderated pulse-irradiation reactor[J].Nucl Sci Eng, 1960, 8: 691-708.

【8】李兵,范晓强,邓门才. 快中子脉冲堆动力学特性研究[J].核电子学与探测技术, 2001, 21(4): 277-280. (Li Bing, Fan Xiaoqiang, Deng Mencai. Dynamic character research of fast neutron burst reactor. Nuclear Electronics & Detection Technology, 2001, 21(4): 277-280)

【9】赵福宇. 核反应堆动力学[M].西安: 西安交通大学出版社,2011. (Zhao Fuyu. Kinetics of nuclear reactor. Xi’an : Xi’an Jiaotong University Press, 2011)

【10】黄祖洽. 核反应堆动力学基础[M].北京: 北京大学出版社, 2011. (Huang Zuqia. The foundation of reactor kinetics. Beijing: Peking University Press, 2011)

【11】贺仁辅, 邓门才.快中子临界装置和脉冲堆实验物理[M].北京: 国防工业出版社, 2012. (He Renfu, Deng Mencai. Experiments and physics on fast-neutron critical facilities and pulsed reactor. Beijing: National Defense Industry Press, 2012)

【12】李兵, 鲁艺, 卢伟, 等. 含反射中子的快脉冲堆中子动力学方程研究[J].原子能科学技术, 2014, 48(s): 38-42.(Li Bing, Lu Yi, Lu Wei, et al. Study of neutron dynamics equation of fast pulse reactor including reflected neutron. Atomic Energy Science and Technology, 2014, 48(s): 38-42)

【13】李欢, 张翼, 徐家云, 等. 临界装置实验大厅散射中子分布研究[J].强激光与粒子束, 2015, 27: 056001. (Li Huan, Zhang Yi, Xu Jiayun, et al. Scattering neutron distribution of critical experiment hall. High Power Laser and Particle Beams, 2015, 27: 056001)

【14】杜金峰. CFBR-Ⅱ堆裂变率计算[J].核动力工程, 2008, 29(6): 6-9. (Du Jinfeng. Calculation of fission rate in CFBR-Ⅱ reactor. Nuclear Power Engineering, 2008, 29(6): 6-9)

引用该论文

Li Bing,Lu Yi,Gao Hui. Kinetic effect of scattering neutrons on super-prompt critical system[J]. High Power Laser and Particle Beams, 2016, 28(5): 056001

李 兵,鲁 艺,高 辉. 散射中子对超瞬发临界系统动态行为的影响[J]. 强激光与粒子束, 2016, 28(5): 056001

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF