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Title: A platform for x-ray absorption fine structure study of dynamically compressed materials above 1 Mbar [A platform for XAFS study of dynamically compressed materials above 1 Mbar]

Here, a platform consisting of a multi-shock drive and an implosion backlighter has been developed for x-ray absorption fine structure (XAFS) measurements on materials compressed to multi-Mbar pressures. The experimental setup, target design, and backlighter characteristics are presented. Extended XAFS (EXAFS) measurements for various materials have been demonstrated. A quintuple-crystal design is described to enhance the efficiency of the x-ray spectrometer, enabling observation of very weak EXAFS signals in a single shot.
Authors:
 [1] ;  [1] ;  [2] ;  [1] ;  [1] ;  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Univ. of Rochester, Rochester, NY (United States)
Publication Date:
Report Number(s):
LLNL-JRNL-642416
Journal ID: ISSN 0034-6748; 761879
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 84; Journal Issue: 12; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION
OSTI Identifier:
1466922

Ping, Y., Hicks, D. G., Yaakobi, B., Coppari, F., Eggert, J., and Collins, G. W.. A platform for x-ray absorption fine structure study of dynamically compressed materials above 1 Mbar [A platform for XAFS study of dynamically compressed materials above 1 Mbar]. United States: N. p., Web. doi:10.1063/1.4841935.
Ping, Y., Hicks, D. G., Yaakobi, B., Coppari, F., Eggert, J., & Collins, G. W.. A platform for x-ray absorption fine structure study of dynamically compressed materials above 1 Mbar [A platform for XAFS study of dynamically compressed materials above 1 Mbar]. United States. doi:10.1063/1.4841935.
Ping, Y., Hicks, D. G., Yaakobi, B., Coppari, F., Eggert, J., and Collins, G. W.. 2013. "A platform for x-ray absorption fine structure study of dynamically compressed materials above 1 Mbar [A platform for XAFS study of dynamically compressed materials above 1 Mbar]". United States. doi:10.1063/1.4841935. https://www.osti.gov/servlets/purl/1466922.
@article{osti_1466922,
title = {A platform for x-ray absorption fine structure study of dynamically compressed materials above 1 Mbar [A platform for XAFS study of dynamically compressed materials above 1 Mbar]},
author = {Ping, Y. and Hicks, D. G. and Yaakobi, B. and Coppari, F. and Eggert, J. and Collins, G. W.},
abstractNote = {Here, a platform consisting of a multi-shock drive and an implosion backlighter has been developed for x-ray absorption fine structure (XAFS) measurements on materials compressed to multi-Mbar pressures. The experimental setup, target design, and backlighter characteristics are presented. Extended XAFS (EXAFS) measurements for various materials have been demonstrated. A quintuple-crystal design is described to enhance the efficiency of the x-ray spectrometer, enabling observation of very weak EXAFS signals in a single shot.},
doi = {10.1063/1.4841935},
journal = {Review of Scientific Instruments},
number = 12,
volume = 84,
place = {United States},
year = {2013},
month = {12}
}