A platform for x-ray absorption fine structure study of dynamically compressed materials above 1 Mbar
Author(s) -
Y. Ping,
D. G. Hicks,
B. Yaakobi,
F. Coppari,
J. H. Eggert,
G. W. Collins
Publication year - 2013
Publication title -
review of scientific instruments
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.605
H-Index - 165
eISSN - 1089-7623
pISSN - 0034-6748
DOI - 10.1063/1.4841935
Subject(s) - x ray absorption fine structure , extended x ray absorption fine structure , implosion , materials science , absorption (acoustics) , x ray , spectrometer , optics , plasma , absorption spectroscopy , physics , spectroscopy , nuclear physics , quantum mechanics
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
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