A current-sensitive preamplifier used for measuring neutronics characteristics of sub-critical nuclear reactor

ZHAO Xiuliang1 XIAO Yongjun1 ZOU Qihong2 ZHAO Yanhui2  1

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A current-sensitive preamplifier used for measuring neutronics characteristics of sub-critical nuclear reactor

更新时间：2021-03-12

- A current-sensitive preamplifier used for measuring neutronics characteristics of sub-critical nuclear reactor
- NUCLEAR TECHNIQUES Issue 6, (2005)
- 作者机构：
  
  1. 南华大学核科学技术学院
  2. 南华大学电气工程学院,衡阳,421001
- 作者简介：
- 基金信息：
  
  国家973计划项目(G1999022602)资助
- DOI：
  CLC： TL816.3
- Published：01 June 2005
- 稿件说明：
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[1]赵修良,肖拥军,邹其洪,赵艳辉.一种用于次临界反应堆中子特性研究的电流灵敏前置放大器的研制[J].核技术,2005(06):469-471.

ZHAO Xiuliang1 XIAO Yongjun1 ZOU Qihong2 ZHAO Yanhui2 1. A current-sensitive preamplifier used for measuring neutronics characteristics of sub-critical nuclear reactor[J]. Nuclear techniques, 2005, (6): 469-471.
[1]赵修良,肖拥军,邹其洪,赵艳辉.一种用于次临界反应堆中子特性研究的电流灵敏前置放大器的研制[J].核技术,2005(06):469-471. DOI：

ZHAO Xiuliang1 XIAO Yongjun1 ZOU Qihong2 ZHAO Yanhui2 1. A current-sensitive preamplifier used for measuring neutronics characteristics of sub-critical nuclear reactor[J]. Nuclear techniques, 2005, (6): 469-471. DOI：

摘要

介绍针对用于次临界反应堆中子特性测量的小尺寸（如φ6mm×10mm）3He中子探测器设计的一种基于AD8004芯片的电流灵敏前置放大器的研制

该前放可由长达10m的同轴屏蔽电缆与探头连接

并且能够适应于高计数率情况下中子通量密度的测量

文中给出了具体电路原理图、性能指标参数以及对电路调试的有关问题的讨论。

Abstract

A current-sensitive preamplifier for the mini-size （ such as φ6 mm × 10 mm） 3He neutron detector used for neutronics characteristics measurement of sub-critical reactor is introduced in this paper. It can be connected with the detector by a coaxial shielded cable which length is up to 10m

and it is propitious to neutron flux measurement at a high counting rate. The current-sensitive preamplifier is based on the chip of AD8004. Its concrete circuit

compo- nent selection and performance parameters are presented.

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