DOI: 10.1029/2012GL053885
论文题名: Subsurface mass transport affects the radioxenon signatures that are used to identify clandestine nuclear tests
作者: Lowrey J.D. ; Biegalski S.R. ; Osborne A.G. ; Deinert M.R.
刊名: Geophysical Research Letters
ISSN: 0094-9423
EISSN: 1944-9154
出版年: 2013
卷: 40, 期: 1 起始页码: 111
结束页码: 115
语种: 英语
Scopus关键词: Critical information
; Geological conditions
; Ground level
; Nevada Test Site
; Nuclear tests
; Relative abundance
; Signal range
; Transport simulation
; Decay (organic)
; Inert gases
; Iodine
; Isotopes
; Testing
; barometry
; mass transport
; nuclear weapons testing
; radionuclide
; relative abundance
; spatiotemporal analysis
; subsurface flow
; xenon
; Nevada
; Pahute Mesa
; United States
英文摘要: The ratios of noble gas radioisotopes can provide critical information with which to verify that a belowground nuclear test has taken place. The relative abundance of anthropogenic isotopes is typically assumed to rely solely on their fission yield and decay rate. The xenon signature of a nuclear test is then bounded by the signal from directly produced fission xenon, and by the signal that would come from the addition of xenon from iodine precursors. Here we show that this signal range is too narrowly defined. Transport simulations were done to span the range of geological conditions within the Nevada Test Site. The simulations assume a 1 kt test and the barometric history following the nuclear test at Pahute Mesa in March 1992. Predicted xenon ratios fall outside of the typically assumed range 20% of the time and situations can arise where the ground level signal comes entirely from the decay of iodine precursors. © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874849556&doi=10.1029%2f2012GL053885&partnerID=40&md5=e697734d73642c862af1e49088b478d6
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6687
Appears in Collections: 气候减缓与适应
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作者单位: Department of Mechanical Engineering, University of Texas at Austin, 1 University Station, C2200, Austin, TX 78715, United States
Recommended Citation:
Lowrey J.D.,Biegalski S.R.,Osborne A.G.,et al. Subsurface mass transport affects the radioxenon signatures that are used to identify clandestine nuclear tests[J]. Geophysical Research Letters,2013-01-01,40(1).