Determination of k<sub>0</sub>-related nuclear parameters-precise determination of <sup>97</sup>Zr half-life

WANG Pingsheng HUANG Donghui CHEN Xilin TIAN Weizhi NI Bangfa ZHANG Lanzhi LIU Cunxiong ZHANG Guiying LIU Likun

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Determination of k₀-related nuclear parameters-precise determination of ⁹⁷Zr half-life

更新时间：2021-03-12

- Determination of k₀-related nuclear parameters-precise determination of ⁹⁷Zr half-life
- NUCLEAR TECHNIQUES Issue 3, (2006)
- 作者机构：
  
  1. 中国原子能科学研究院
  2. 中国原子能科学研究院,北京,102413
- 作者简介：
- 基金信息：
- DOI：
  CLC： O571.3
- Published：01 March 2006
- 稿件说明：
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[1]王平生,黄东辉,陈细林,田伟之,倪邦发,张兰芝,刘存兄,张贵英,刘立坤.k_0-NAA相关核参数(~(97)Zr半衰期)的精确测定[J].核技术,2006(03):174-177.

WANG Pingsheng HUANG Donghui CHEN Xilin TIAN Weizhi NI Bangfa ZHANG Lanzhi LIU Cunxiong ZHANG Guiying LIU Likun. Determination of k₀-related nuclear parameters-precise determination of ⁹⁷Zr half-life[J]. Nuclear techniques, 2006, (3): 174-177.
[1]王平生,黄东辉,陈细林,田伟之,倪邦发,张兰芝,刘存兄,张贵英,刘立坤.k_0-NAA相关核参数(~(97)Zr半衰期)的精确测定[J].核技术,2006(03):174-177. DOI：

WANG Pingsheng HUANG Donghui CHEN Xilin TIAN Weizhi NI Bangfa ZHANG Lanzhi LIU Cunxiong ZHANG Guiying LIU Likun. Determination of k₀-related nuclear parameters-precise determination of ⁹⁷Zr half-life[J]. Nuclear techniques, 2006, (3): 174-177. DOI：

摘要

以三种不同脉冲处理原理的测量系统测定了用于k0-NAA中热/超热中子注量率比计算的97Zr半衰期。结果为（16.755±0.013）h。澄清了目前国际上常用的两个值16.744h和16.90h之间的分歧。对使用不同测量系统时各种死时间校正方法的有效性进行了评价。对放射性强度跨越1000倍动态范围（10个半衰期）的跟踪测量中影响相对峰计数率精确测定的因素进行了讨论。

Abstract

The half-life of 97Zr

used for the calculation of thermal/epithermal neutron flux ratio in k0-NAA

is re-determined using three measurement systems with different pulse processing principles. The result of （16.755±0.013） h clarifies the discrepancy between two widely used literature values

（16.744±0.011） h and （16.90±0.05） h. Different dead-time correction methods used on various measurement systems are evaluated. Factors influencing precise measurement of relative peak counting rates are discussed in time-series measurements over a dynamic range of 1000-fold radioactive intensities （10 half-lives）.

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Related Author

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Related Institution

Key Laboratory of Advanced Micro-Structure Materials (MOE), Tongji University

School of Physics Science and Engineering, Tongji University

Institute of Modern Physics, Chinese Academy of Sciences

School of Physics and Nuclear Energy Engineering, Beihang University

Department of Nuclear Physics, China Institute of Atomic Energy

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Determination of k0-related nuclear parameters-precise determination of 97Zr half-life

DOI：

摘要

Abstract

关键词

Keywords

references

Determination of k₀-related nuclear parameters-precise determination of ⁹⁷Zr half-life