Neutronics calculation of a reactor cold neutron source

HU Chunming YU Chaoju TONG Jianfei

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Neutronics calculation of a reactor cold neutron source

更新时间：2021-03-05

- Neutronics calculation of a reactor cold neutron source
- NUCLEAR TECHNIQUES Vol. 34, Issue 9, (2011)
- 作者机构：
  
  中国科学院高能物理研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC： O571.53
- Published：01 September 2011
- 稿件说明：
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[1]胡春明,余朝举,童剑飞.反应堆冷中子源中子物理学计算[J].核技术,2011,34(09):666-668.

HU Chunming YU Chaoju TONG Jianfei. Neutronics calculation of a reactor cold neutron source[J]. Nuclear techniques, 2011, 34(9): 666-668.
[1]胡春明,余朝举,童剑飞.反应堆冷中子源中子物理学计算[J].核技术,2011,34(09):666-668. DOI：

HU Chunming YU Chaoju TONG Jianfei. Neutronics calculation of a reactor cold neutron source[J]. Nuclear techniques, 2011, 34(9): 666-668. DOI：

摘要

用MCNP软件计算反应堆冷中子源

慢化剂室内平均中子注量率为6.69×1013/cm–2.s–1

波长为0.4 nm和0.6 nm的冷中子增益因子

6和32。冷源慢化剂中正仲氢比例对输出的冷中子能谱有较大影响

而在3 K范围内慢化剂温度变化对冷中子能谱的影响很小。计算结果表明

冷中子源性能达到基本设计要求。

Abstract

The construction of a reactor cold neutron source(CNS) will be completed in the near future.To evaluate performance of the CNS

a neutronics calculation using MCNP4C code has been carried out.The results show that the average neutron flux in the moderator is 6.69×1013/cm2.s

and the cold neutron gain factors corresponding to 4- and 6- wavelengths are 16 and 32

respectively.The results also indicate that different ratios of ortho-H2/para-H2 have an obvious impact on cold neutron spectrum in the moderator

but within 3 K of the moderator temperature changes

the spectrum varies slightly.

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Related Author

Heyong HUO

Yong SUN

Bin TANG

Wei YIN

Bin LIU

Yang WU

Chao CAO

Sheng WANG

Related Institution

Key Laboratory of Neutron Physics, China Academy of Engineering Physics

Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics

Key Laboratory of Nuclear Radiation and Nuclear Technology, Chinese Academy of Sciences

Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus

School of Electricity, South China University of Technology

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