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Title: Measurement of high-energy (10–60 keV) x-ray spectral line widths with eV accuracy

A high resolution crystal spectrometer utilizing a crystal in transmission geometry has been developed and experimentally optimized to measure the widths of emission lines in the 10–60 keV energy range with eV accuracy. The spectrometer achieves high spectral resolution by utilizing crystal planes with small lattice spacings (down to 2d = 0.099 nm), a large crystal bending radius and Rowland circle diameter (965 mm), and an image plate detector with high spatial resolution (60 μm in the case of the Fuji TR image plate). High resolution W L-shell and K-shell laboratory test spectra in the 10–60 keV range and Ho K-shell spectra near 47 keV recorded at the LLNL Titan laser facility are presented. The Ho K-shell spectra are the highest resolution hard x-ray spectra recorded from a solid target irradiated by a high-intensity laser.
Authors:
;  [1] ; ; ; ;  [2] ;  [3] ; ; ;  [4] ; ; ;  [5]
  1. Artep Inc., 2922 Excelsior Springs Court, Ellicott City, Maryland 21042 (United States)
  2. National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States)
  3. Ecopulse Inc., P. O. Box 528, Springfield, Virginia 22152 (United States)
  4. University of Michigan, Ann Arbor, Michigan 48109 (United States)
  5. Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)
Publication Date:
OSTI Identifier:
22308601
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCURACY; CRYSTALS; EV RANGE; HARD X RADIATION; HOLMIUM; K SHELL; KEV RANGE; L SHELL; LASER TARGETS; LAWRENCE LIVERMORE NATIONAL LABORATORY; LINE WIDTHS; SPATIAL RESOLUTION; SPECTROMETERS; TUNGSTEN