[1]姜山,杨旭冉,何明,等.加速器质谱在核科学中的应用[J].深圳大学学报理工版,2015,32(1):8-16.[doi:10.3724/SP.J.1249.2015.01008]
 Jiang Shan,Yang Xuran,He Ming,et al.Applications of accelerator mass spectrometry in nuclear science[J].Journal of Shenzhen University Science and Engineering,2015,32(1):8-16.[doi:10.3724/SP.J.1249.2015.01008]
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加速器质谱在核科学中的应用()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第32卷
期数:
2015年第1期
页码:
8-16
栏目:
物理
出版日期:
2015-01-20

文章信息/Info

Title:
Applications of accelerator mass spectrometry in nuclear science
文章编号:
201501002
作者:
姜山杨旭冉何明董克君窦亮
中国原子能科学研究院核物理研究所, 北京 102413
Author(s):
Jiang Shan Yang Xuran He Ming Dong Kejun and Dou Liang
Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, P.R.China
关键词:
粒子物理与原子核物理加速器质谱半衰期核反应截面裂变产物核核能与核安全
Keywords:
particle physics and nuclear physics accelerator mass spectrometry half-life nuclear reaction cross sections fission product nucleus nuclear energy and nuclear safety
分类号:
O 571.1
DOI:
10.3724/SP.J.1249.2015.01008
文献标志码:
A
摘要:
加速器质谱(accelerator mass spectrometry,AMS)是基于加速器和离子探测器的一种高能质谱,属于一种同位素质谱(mass spectroscopy, MS),它克服了传统MS存在的分子本底和同量异位素本底干扰,因此同位素丰度灵敏度很高,对14C(T1/2=5 730 a)、10Be(T1/2=1.5×106 a)和36Cl(T1/2=3.0×105 a)等核素测量的丰度灵敏度均达10-15(传统MS的同位素丰度灵敏度最高为10-8).因此,AMS具有极其广泛的应用前景.简述AMS原理、技术和发展现状,介绍中国原子能科学研究院的AMS技术,及该技术在核科学与技术中的应用研究进展,包括长寿命核素半衰期的测量(如 79Se),核反应微小截面的测量(如238U(n,3n)236U),长寿命谷区裂变产物核测量以及 129I的AMS测量作为核设施监测、核环境与核应急检测的新方法等.
Abstract:
Belonging to the category of isotope mass spectrometry(MS), accelerator mass spectrometry(AMS)is a high-energy mass spectrometry based on accelerators and ion detectors.AMS overcomes the molecular and isobaric background interferences extant in conventional MS, and therefore has an extremely high isotopic abundance sensitivity, which reaches 10-15 (isotopic abundance sensitivity of conventional MS is 10-8 at highest) for measurement of nuclides such as 14C(T1/2=5 730 a), 10Be(T1/2=1.5×106 a) and 36Cl(T1/2=3.0×105 a). Accordingly, AMS has extremely broad application prospects. This paper introduces the principle, technique and development status of AMS and focuses on the introduction of CIAE’s AMS technique and research advances in its application in nuclear science and technology, such as studies on measurements of the half-life of long-lived nuclides(79Se), small nuclear reaction cross sections(238U(n,3n)236U) and long-lived fission product nucleus in valley areas, as well as AMS measurements of 129I as the new approach for nuclear facility monitoring, nuclear environment and emergency detection.

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备注/Memo

备注/Memo:
Received:2014-09-02;Accepted:2014-12-09
Foundation:National Natural Science Foundation of China (11375272)
Corresponding author:Professor Jiang Shan.E-mail:Jiangs@cise.ac.cn;Research associate Dou Liang. E-mail:douer-2@163.com
Citation:Jiang Shan, Yang Xuran, He Ming,et al,et al.Applications of accelerator mass spectrometry in nuclear science[J]. Journal of Shenzhen University Science and Engineering, 2015, 32(1): 8-16.
更新日期/Last Update: 2015-01-05