On the methodology of determining radionuclides in Ningqiang chondrite with low level γ spectrometry

Qing Su; Suming Luo; Zhifang Chai; Xueying Mao; Shulan Ma

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On the methodology of determining radionuclides in Ningqiang chondrite with low level γ spectrometry

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- On the methodology of determining radionuclides in Ningqiang chondrite with low level γ spectrometry
- Nuclear Techniques Vol. 10, Issue 3, (1987)
- 作者机构：
  
  1.中国预防医学中心工业卫生实验所
  2.中国科学院高能物理研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：18 October 1985，
  
  Published：1987-03
- 稿件说明：
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Qing Su, Suming Luo, Zhifang Chai, et al. On the methodology of determining radionuclides in Ningqiang chondrite with low level γ spectrometry[J]. Nuclear techniques, 1987, 10(3): 19-22,60.
DOI：

Qing Su, Suming Luo, Zhifang Chai, et al. On the methodology of determining radionuclides in Ningqiang chondrite with low level γ spectrometry[J]. Nuclear techniques, 1987, 10(3): 19-22,60. DOI：

摘要

本文介绍利用塑料闪烁体反符合屏蔽低本底NaI（Tl）γ谱仪对我国第一块碳质球粒陨石——宁强陨石中的

Na、

Al、

K、

Mn和

Co作非破坏分析，并进行数据处理。结果表明，所用的方法基本上是成功的。谱仪以符合方式工作时，对

Co的探测灵敏度为7.4dpm/kg，最低可探测限为14dpm/kg。

Abstract

The paper describes the nondestructive analysis of

Mn and

Co in the Ningqiang Meteorite——the first Chinese carbonaceous chondrite by a newly developed low background NaI (T1) γ-ray spectrometer with a plastic anticoincidence shield

and also specially discusses data processing methods. The results indicate that our methods are acceptable for the work.

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references

苏琼等，中国预防医学中心工业卫生实验所年报， 1 , 101 （ 1981 ）。

柴之芳等，科学通报 , 30 , 21 ( 1985 )。

D. Heyman and E. Anders , Geochim. Cosmochim. Acta , 31 , 1793 ( 1967 ).

C. M. Lederer et al. , Table of isotopes , 6th Edition , Wiley & Sons , New York , 1967 .

R. C. Wrigley , Cosmogenic nuclides in the pueblito de allende and murchison meteorites, paper Presented at 33rd annual meeting , Meteorite Soc. , Skyland, Virginia , Oct. 27-30, 1970 .

L. A. Rancitell et al. , Science. , 166 , 1269 ( 1969 ).

Jr. P. J. Cressg , J. Geophy. Res. , 77 , 4905 ( 1972 ).

柴之芳等，科学通报 , 21 , 1644 ( 1985 )。

Chai Zhifang et al. , Kexue Tongbao , 31 , 2 , 115 ( 1986 ).

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