MC simulation and time property analysis of fission multiplication in supercritical system

ZHU Jinhui HUANG Liuxing NIU Shengli

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MC simulation and time property analysis of fission multiplication in supercritical system

更新时间：2021-03-05

- MC simulation and time property analysis of fission multiplication in supercritical system
- NUCLEAR TECHNIQUES Vol. 35, Issue 1, (2012)
- 作者机构：
  
  西北核技术研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC： TL329.2
- Published：01 January 2012
- 稿件说明：
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[1]朱金辉,黄流兴,牛胜利.超临界系统裂变增值蒙卡模拟及其时间特性分析[J].核技术,2012,35(01):45-48.

ZHU Jinhui HUANG Liuxing NIU Shengli. MC simulation and time property analysis of fission multiplication in supercritical system[J]. Nuclear techniques, 2012, 35(1): 45-48.
[1]朱金辉,黄流兴,牛胜利.超临界系统裂变增值蒙卡模拟及其时间特性分析[J].核技术,2012,35(01):45-48. DOI：

ZHU Jinhui HUANG Liuxing NIU Shengli. MC simulation and time property analysis of fission multiplication in supercritical system[J]. Nuclear techniques, 2012, 35(1): 45-48. DOI：

摘要

开发蒙卡程序对超临界系统中的中子输运过程进行模拟

计算给出了系统增值系数和中子平均去除时间

与MCNP程序的计算结果符合较好。利用程序的时间驿站功能

计算给出了超临界系统的增值时间常数。分析了特定条件下超临界系统的增值时间常数和增值系数的关系。结果表明

对于超临界系统

其系统增值时间常数除了和增值系数有关以外

主要还受到平均裂变时间的影响。

Abstract

In this work

the neutron transport in a supercritical system was simulated by an MC code.The multiplication factor and prompt removal lifetime were obtained

which agreed well with the MCNP results.The multiplication time constant of the supercritical system was studied numerically by using the time station module.The relationship between multiplication time constant and multiplication factor for a supercritical system was investigated.The results indicate that the multiplication time constant is not only related to the multiplication factor keff

but also affected by the mean time of fission.

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