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稍超瞬发临界系统缓发中子发射率研究 被引量：1

Study of Delayed Neutrons Emission Rate in Slightly Super-Prompt-Critical System
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摘要 使用蒙特卡罗直接模拟程序计算了弱源点火条件下超瞬发临界5 c/的GodivaⅠ快中子脉冲堆缓发中子发射率规律和脉冲引发时刻概率分布。计算结果表明,脉冲引发时刻概率分布的计算结果与实验结果符合较好,所获得的缓发中子发射率规律可合理解释引发时刻概率分布的实验结果。 Emission rates of delayed neutrons and burst initiation time for GodivaⅠ burst assembly in the presence of weak neutron source,whose reactivity was 5 c/ above prompt criticality,were calculated using analog Monte-Carlo method.The result of initiation time is consistent with experiment.Emission rate of delayed neutron attained from calculation can well explain the probability distribution of initiation time.
作者 谢奇林 范晓强 刘汉刚 杨成德 贺仁辅
机构地区 中国工程物理研究院核物理与化学研究所
出处 《原子能科学技术》 EI CAS CSCD 北大核心 2011年第6期641-644,共4页 Atomic Energy Science and Technology
关键词 持续裂变链 引发时刻 缓发中子 蒙特卡罗直接模拟 超瞬发临界 persistent fission chain initiation time delayed neutron analog Monte-Carlo method super-prompt-critical
分类号 O571.437 [理学—粒子物理与原子核物理] TL329 [核科学技术—核技术及应用]
  • 相关文献

参考文献8

  • 1HANSEN G E. Assembly of fissionable material in the presence of weak neutron source[J]. Nucl Sci Eng, 1960, 8:709 719.
  • 2WIMETT T F, WHITE R H, STRATTON W R, et al. Godiva 1I An unmoderated pulse irradiation reactor[J]. Nucl Sci Eng, 1960, 8: 691-708.
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二级参考文献18

  • 1贺仁辅,范晓强.中子引发持续裂变链概率对中子位置、能量和运动方向的依赖性[R].绵阳:中国工程物理研究院,2004.
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共引文献3

同被引文献7

  • 1HANSEN G E. Assembly of fissionable material in the presence of weak neutron source[J]. Nucl Sci Eng, 1960, 8(6):709-719.
  • 2WIMETT T F, WHITE R H, STRATTON W R, et al. Godiva II: An unmoderated pulse-irradiation reactor[J]. Nucl Sci Eng, 1960, 8(6) : 691-708.
  • 3NOLEN S D. The chain-length distribution in subcritical systems, LA-13721-T[R]. USA:LANL, 2000.
  • 4TERRELL J. Distributions of fission neutron numbers[J]. Phys Rev, 1957, 108(3): 783-789.
  • 5POINT 2004: A temperature dependent ENDF/ B-VI, UCRL-TR-202284[R]. USA.. LLNL, 2004.
  • 6PETERSON R E. Lady Godiva:An unreflected uranium-235 critical assembly, LA-1614[R]. USA: LANL, 1953.
  • 7谢奇林,刘汉刚,杨成德,贺仁辅,范晓强.持续裂变链引发概率的直接模拟研究[J].原子能科学技术,2010,44(6):641-646. 被引量：4

引证文献1

原子能科学技术
2011年 第6期

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