~(236)U是一种长寿命放射性核素,其半衰期为T_(1/2)=2.342(3)×10~7a,在自然界的含量极微,天然铀中~(236)U /~(238)U的原子比约为~10~(-14).目前,对于~(236)U及其测量的研究报道较少.首先介绍了~(236)U的产生,并对地球中~(236)U的总量进行了估算.概述了~(236)U测定在亿年级中子注量率积分评估、核环境和核活动监测,以及地质学等领域中的重要应用.最后,对国内外加速器质谱(AMS)测量~(236)U的状况进行了综述,报道了中国原子能科学研究院AMS小组通过对同位素干扰鉴别的多方面研究,初步建立了~(236)U-AMS测量方法.
~(236)U is a long-lived radionuclide with half-life of 2.342(3)×10~7 a.The ratio of ~(236)U/~(238)U is about 10~(-14) in the natural Uranium.The origin and production of ~(236)U in globe are introduced and esti-mated in this paper,respectively.The major applicationsion of ~(236)U as a 100-million year neutron flux in-tegrator.as a"fingerprint"for monitoring nuclear environment and nuclear activity,and as a tracer in geo-logical studies are briefly summarized.The accelerator mass spectrometry(AMS)measurement of ~(236)U in the world and the research on HI-13 tandem accelerator at China Institute of Atomic Energy(CIAE)is also mentioned in this paper.
参考文献
[1] | Li M Q.Nuclear Industry Conspectus.Beijing:Atomic Ener-gy Press,1995.6(in Chinese).(李民权.核工业生产概念.北京:原子能出版社,1995,6.) |
[2] | Marsden O J,Livens F R,Day J P,et al.Analyst,2001,126:633. |
[3] | Richard B F,Virginia S S.Table of Isotopes,1996. |
[4] | Fabryka-Martin J T.Production of Radionuclides in the Earth and Their Hydrogeologic Significance,with Emphasis on Chlo-rine-36 and Iodine-129.Ph.D Dissertation,University of Ari-zona,1988. |
[5] | Peter Steier,Max Bichler,Keith Fifiield L,et al.Nucl Instr and Meth,2008,266:2246. |
[6] | Distilling Uranium from Seawater.Beijing:Atomic Energy Press,1980(in Chinese).(海水提铀译文集.北京:原子能出版社,1980.) |
[7] | Ivanovich M.Radiochim Acta,1994,64:81. |
[8] | Vance R.In:What 40 Years of Red Books Can Tell Us?Pro-ceedings of the 31th WNA Annual Symposium,World Nuclear Asaociation,2006. |
[9] | Mironov V P,Matusevich J L,Kudrjashov V P,et al.J Envi-ron Monit,2007,4:997. |
[10] | Hotchki M A C,Child D,Fink D,et al.Nucl Instr andMeth,2000,B172:659. |
[11] | Boulyga S F,Heumann K G.J Environ Radioact,2006,88:1. |
[12] | Ketterer M E,Haler K M,Link C L,et al.J Environ Radio-act,2003,67:191. |
[13] | Donhue D.J Alloys Comp,1998m,271:11. |
[14] | Peter Steier,Robin Golser,Walter Kutschera,et al.Nucl In-str and Meth,2002,B188:283. |
[15] | Kenneth H P,Linas R K,Albert E L,et al.Nucl Instr and Meth,1996,B113:445. |
[16] | Peter Steier,Franz Dellinger,Oliver Forsmer,et al.Analysis and Application of Heavy Isotopes in the Environment.11th International Conferenceon Accelerator Mass Spectrometry.Rome,Italy.September 14-19,2008. |
[17] | Richter S,Alonso A,De Bolle,et al.Int J Mass Spectrom,1999,193:9. |
[18] | Buchholza B A,Browna T A,Hamiltona T F,et al.Nucl In-str and Meth,2007,B259:733. |
[19] | Muller R A.Science,1977,196(4289):489. |
[20] | Pyrser K H,Liebert R B,Litherland A E,et al.Rev Phys App,1997,12:487. |
[21] | Jiang S H,Jiang S,Ma T J,et al.Nuct Instr and Meth,1990,1352:285. |
[22] | Jiang S,Jiang S H.Atomic Energy Science and Technology,(3):1991,25(3):40(in Chinese).(姜山,蒋崧生.原子能科学技术,1991,25(3):40.) |
[23] | [233 Jiang S,He M,Jiang S H,et al.Nucl Instr and Meth,2000,B172:87. |
[24] | He M,Jiang S,Chen Q,et al.Nucl]nstr and Meth,2000,B172:177. |
[25] | Jiang S,He M,Dong K.J,et al.Nucl Instr andMeth,2004,B223-224:750. |
[26] | Jiang S,He M,Yuan J,et al.Journal of Chinese Mass Spec-trometry Society,2007,28:21(in Chinese).(姜山,何明,袁坚等.质谱学报,2007,28:21.) |
[27] | Zhao X L,Nadeau M J,Kilius L R,et al.Nucl Instr and Meth,1999,B92:249. |
[28] | Berkovits D,Feldstein H,Ghelberg S,et al.Nucl Instr and Meth,2000,B172:372. |
[29] | Steier P,Golser R,Kutschera W,et al.Nucl Instr and Meth,2002,B188:283. |
[30] | Voekenhuber Ch,Ahmad I,Golser R,et al.International J Mass Spectrometry,2003,223-224:713. |
[31] | Brown T A,Marchetti A A,Martinelli R E,et al.Nucl Instr and Meth,2004,B223-224:788. |
[32] | Wilcken K M,Barrows T T,Fifield L K,et al.Nucl Instr and Meth,2007,B259:727. |
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