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Title: Plutonium segregation in glassy aerodynamic fallout from a nuclear weapon test

Our study combines electron microscopy equipped with energy dispersive spectroscopy to probe major element composition and autoradiography to map plutonium in order to examine the spatial relationships between plutonium and fallout composition in aerodynamic glassy fallout from a nuclear weapon test. We interrogated a sample set of 48 individual fallout specimens in order to reveal that the significant chemical heterogeneity of this sample set could be described compositionally with a relatively small number of compositional endmembers. Furthermore, high concentrations of plutonium were never associated with several endmember compositions and concentrated with the so-called mafic glass endmember. Our result suggests that it is the physical characteristics of the compositional endmembers and not the chemical characteristics of the individual component elements that govern the un-burnt plutonium distribution with respect to major element composition in fallout.
Authors:
ORCiD logo [1] ;  [2] ;  [2] ;  [3] ;  [1] ;  [1] ;  [1] ;  [4] ;  [1] ;  [2]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Air Force Research Lab. (AFRL), Wright-Patterson AFB, OH (United States)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of Nevada, Las Vegas, NV (United States)
  4. Univ. of Nevada, Las Vegas, NV (United States)
Publication Date:
Report Number(s):
LLNL-JRNL-692614
Journal ID: ISSN 1477-9226; ICHBD9
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Dalton Transactions
Additional Journal Information:
Journal Volume: 46; Journal Issue: 6; Journal ID: ISSN 1477-9226
Publisher:
Royal Society of Chemistry
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20)
Country of Publication:
United States
Language:
English
Subject:
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; 61 RADIATION PROTECTION AND DOSIMETRY
OSTI Identifier:
1361601

Holliday, K. S., Dierken, J. M., Monroe, M. L., Fitzgerald, M. A., Marks, N. E., Gostic, R. C., Knight, K. B., Czerwinski, K. R., Hutcheon, I. D., and McClory, J. W.. Plutonium segregation in glassy aerodynamic fallout from a nuclear weapon test. United States: N. p., Web. doi:10.1039/C6DT04184A.
Holliday, K. S., Dierken, J. M., Monroe, M. L., Fitzgerald, M. A., Marks, N. E., Gostic, R. C., Knight, K. B., Czerwinski, K. R., Hutcheon, I. D., & McClory, J. W.. Plutonium segregation in glassy aerodynamic fallout from a nuclear weapon test. United States. doi:10.1039/C6DT04184A.
Holliday, K. S., Dierken, J. M., Monroe, M. L., Fitzgerald, M. A., Marks, N. E., Gostic, R. C., Knight, K. B., Czerwinski, K. R., Hutcheon, I. D., and McClory, J. W.. 2017. "Plutonium segregation in glassy aerodynamic fallout from a nuclear weapon test". United States. doi:10.1039/C6DT04184A. https://www.osti.gov/servlets/purl/1361601.
@article{osti_1361601,
title = {Plutonium segregation in glassy aerodynamic fallout from a nuclear weapon test},
author = {Holliday, K. S. and Dierken, J. M. and Monroe, M. L. and Fitzgerald, M. A. and Marks, N. E. and Gostic, R. C. and Knight, K. B. and Czerwinski, K. R. and Hutcheon, I. D. and McClory, J. W.},
abstractNote = {Our study combines electron microscopy equipped with energy dispersive spectroscopy to probe major element composition and autoradiography to map plutonium in order to examine the spatial relationships between plutonium and fallout composition in aerodynamic glassy fallout from a nuclear weapon test. We interrogated a sample set of 48 individual fallout specimens in order to reveal that the significant chemical heterogeneity of this sample set could be described compositionally with a relatively small number of compositional endmembers. Furthermore, high concentrations of plutonium were never associated with several endmember compositions and concentrated with the so-called mafic glass endmember. Our result suggests that it is the physical characteristics of the compositional endmembers and not the chemical characteristics of the individual component elements that govern the un-burnt plutonium distribution with respect to major element composition in fallout.},
doi = {10.1039/C6DT04184A},
journal = {Dalton Transactions},
number = 6,
volume = 46,
place = {United States},
year = {2017},
month = {1}
}