HFETR 6 LiD转换器内聚变谱中子源强分析

核聚变与等离子体物理 ›› 2014, Vol. 34 ›› Issue (4): 335-339.

HFETR 6 LiD转换器内聚变谱中子源强分析

孙寿华，叶滨，胡一非

(1. 中国核动力研究设计院，成都610041；2. 西南科技大学，绵阳264312)

收稿日期:2014-03-12 修回日期:2014-10-29 出版日期:2014-12-15 发布日期:2014-12-15
作者简介:孙寿华(1964-)，男，四川彭州人，硕士，研究员，从事反应堆工程与安全研究。
基金资助:
国家自然科学基金资助项目(10975122)

Fusion spectrum neutron source computation in 6 LiD convertor for HFETR

SUN Shou-hua, YE Bing, HU Yi-fei

(1. Nuclear Power Institute of China, Cheng Du 610041; 2. Southwest University of Science and Technology, Mianyang 264312)

Received:2014-03-12 Revised:2014-10-29 Online:2014-12-15 Published:2014-12-15

摘要/Abstract

摘要：

建立了⁶ LiD转换器中14MeV中子源强的计算模型，对转换器不带辐照样品和分别带2、3、4个辐照样品时的中子源强进行了计算，对转换器产生的中子和来自于堆芯的中子在样品内的能谱和中子注量率进行了计算。结果表明，辐照管内充水和氦气时，辐照样品内由转换器产生的能量大于13MeV的中子分别占能量在1MeV 以上中子的25.7%、24.6%，辐照样品内由堆芯产生的能量大于13MeV的中子仅占能量在1MeV以上中子的10⁻⁵ 左右，样品内14MeV 中子源强分别可达4.31×10 ¹³ nT⋅s ⁻¹、3.34×10 ¹³ nT⋅s ⁻¹；中子注量率分别可达2.66 ×10 ¹⁰ n_T⋅cm ⁻²⋅s ⁻¹、3.53×10 ¹⁰ n_T⋅cm ⁻² ⋅s ⁻¹。

关键词: ⁶LiD转换器, HFETR, 辐照样品, 聚变谱中子

Abstract:

A computation model of 14MeV neutron from the ⁶LiD convertor has been established, the 14MeV neutron sources and flux in the irradiation samples from the 6 LiD convertor and the core have been computed separately, the neutron spectrum in the irradiation samples have been computed, too. The results show that the neutron sources that over 13MeV account for 1MeV above in the 6 LiD convertor is 25.7%、24.6% respectively, 14MeV neutron sources get 4.31×10 13 n_T⋅s ⁻¹、3.34×10 13 n_T⋅s ⁻¹, 14MeV neutron flux get 2.66×10 ¹⁰ n_T⋅cm ⁻²⋅s ⁻¹、3.53×10¹⁰n_T⋅cm⁻² ⋅s⁻¹ , as He and H₂O charged in the irradiation capsule.

Key words: ⁶ LiD convertor, HFETR, Irradiation sample, Fusion spectrum neutron

中图分类号:

TL62 + 1

孙寿华，叶滨，胡一非. HFETR 6 LiD转换器内聚变谱中子源强分析[J]. 核聚变与等离子体物理, 2014, 34(4): 335-339.

SUN Shou-hua, YE Bing, HU Yi-fei. Fusion spectrum neutron source computation in 6 LiD convertor for HFETR[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2014, 34(4): 335-339.