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

Jarrott, L. C.; Wei, M. S.; McGuffey, C.; Beg, F. N.; Nilson, P. M.; Sorce, C.; Stoeckl, C.; Theoboald, W.; Sawada, H.; Stephens, R. B.; Patel, P. K.; McLean, H. S.; Landen, O. L.; Glenzer, S. H.; Doppner, T.

doi:10.1063/1.4981793

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

Journal Article · Thu Apr 27 00:00:00 EDT 2017 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4981793· OSTI ID:1411673

^[1]; Wei, M. S. ^[2]; ^[3]; Beg, F. N. ^[3]; Nilson, P. M. ^[4]; Sorce, C. ^[4]; Stoeckl, C. ^[4]; Theoboald, W. ^[4]; ^[5]; ^[2]; Patel, P. K. ^[6]; ^[6]; ^[6]; Glenzer, S. H. ^[6]; Doppner, T. ^[6]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California at San Diego, La Jolla, CA (United States)
General Atomics, San Diego, CA (United States)
Univ. of California at San Diego, La Jolla, CA (United States)
Lab. for Laser Energetics, Rochester, NY (United States)
Univ. of Nevada, Reno, NV (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

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.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: AC52-07NA27344; FC02-04ER54789

OSTI ID:: 1411673

Alternate ID(s):: OSTI ID: 1987973

Report Number(s):: LLNL-JRNL--713862

Journal Information:: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 4 Vol. 88; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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