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Title: Calibration and characterization of a highly efficient spectrometer in von Hamos geometry for 7-10 keV x-rays

Here, we have built an absolutely calibrated, highly efficient, Bragg crystal spectrometer in von Hamos geometry. This zinc von Hamos spectrometer uses a crystal made from highly oriented pyrolytic graphite that is cylindrically bent along the non-dispersive axis. It is tuned to measure x-ray spectra in the 7–10 keV range and has been designed to be used on a Ten Inch Manipulator for the Omega and OmegaEP target chambers at the Laboratory for Laser Energetics in Rochester, USA. Significant shielding strategies and fluorescence mitigation have been implemented in addition to an imaging plate detector making it well suited for experiments in high-intensity environments. Here we present the design and absolute calibration as well as mosaicity and integrated reflectivity measurements.
Authors:
ORCiD logo [1] ;  [2] ; ORCiD logo [3] ;  [3] ;  [4] ;  [4] ;  [4] ;  [4] ; ORCiD logo [5] ; ORCiD logo [2] ;  [6] ; ORCiD logo [6] ; ORCiD logo [6] ;  [6] ;  [6]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California at San Diego, La Jolla, CA (United States)
  2. General Atomics, San Diego, CA (United States)
  3. Univ. of California at San Diego, La Jolla, CA (United States)
  4. Lab. for Laser Energetics, Rochester, NY (United States)
  5. Univ. of Nevada, Reno, NV (United States)
  6. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Report Number(s):
LLNL-JRNL-713862
Journal ID: ISSN 0034-6748
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 88; Journal Issue: 4; 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
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION
OSTI Identifier:
1411673