Neutron flux measurement in neutron beam equipment by SSNTD

LI Yiguo ZHU Qingfu XIA Pu GAO Yongchun ZHU Guosheng ZHENG Wuqin SHI Yongqian

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Neutron flux measurement in neutron beam equipment by SSNTD

更新时间：2021-03-12

- Neutron flux measurement in neutron beam equipment by SSNTD
- NUCLEAR TECHNIQUES Issue 9, (2005)
- 作者机构：
  
  1. 中国原子能科学研究院反应堆工程研究设计所
  2. 中国原子能科学研究院反应堆工程研究设计所,北京,102413
- 作者简介：
- 基金信息：
- DOI：
  CLC： TL815
- Published：01 September 2005
- 稿件说明：
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[1]李义国,朱庆福,夏普,高永春,朱国盛,郑伍钦,史永谦.固体径迹探测器测量束流装置内的中子通量密度[J].核技术,2005(09):697-699.

LI Yiguo ZHU Qingfu XIA Pu GAO Yongchun ZHU Guosheng ZHENG Wuqin SHI Yongqian. Neutron flux measurement in neutron beam equipment by SSNTD[J]. Nuclear techniques, 2005, (9): 697-699.
[1]李义国,朱庆福,夏普,高永春,朱国盛,郑伍钦,史永谦.固体径迹探测器测量束流装置内的中子通量密度[J].核技术,2005(09):697-699. DOI：

LI Yiguo ZHU Qingfu XIA Pu GAO Yongchun ZHU Guosheng ZHENG Wuqin SHI Yongqian. Neutron flux measurement in neutron beam equipment by SSNTD[J]. Nuclear techniques, 2005, (9): 697-699. DOI：

摘要

在微型反应堆零功率装置上搭建了硼中子俘获治疗拟采用的热中子束流装置。利用固体径迹探测器（SSNTD）测量了束流装置中心轴线上不同位置处的中子通量密度。结果显示

在束流装置入口处中子通量密度为5.39×107cm–2·s–1时

出口处热中子通量密度为5.63×104cm–2·s–1

热中子通量密度衰减到入口处的1/957。而利用热释光（TLD）方法和MCNP/4B程序测量和计算结果分别为1/1032和1/972。

Abstract

A thermal neutron beam equipment is installed in the miniature neutron source reactor (MNSR) zero power facility. The neutron flux densities at various positions in neutron beam equipment are measured by SSNTD method. When the neutron flux density at the equipment entrance is 5.39×107 cm–2·s–1

the thermal neutron flux density at the equipment exit is 5.63×104 cm–2·s–1

with an attenuation factor for thermal neutron flux density being 1/957

while the attenuation factors by using TLD and MCNP/4B methods are1/ 1032 and 1/972

respectively.

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