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Title: A high-throughput energy-dispersive tender X-ray spectrometer for shot-to-shot sulfur measurements

Journal Article · · Journal of Synchrotron Radiation (Online)

An X-ray emission spectrometer that can detect the sulfur Kα emission lines with large throughput and a high energy resolution is presented. The instrument is based on a large d-spacing perfect Bragg analyzer that diffracts the sulfur Kα emission at close to backscattering angles. This facilitates the application of efficient concepts routinely employed in hard X-ray spectrometers towards the tender X-ray regime. The instrument described in this work is based on an energy-dispersive von Hamos geometry that is well suited for photon-in photon-out spectroscopy at X-ray free-electron laser and synchrotron sources. Comparison of its performance with previously used instrumentation is presented through measurements using sulfur-containing species performed at the LCLS. It is shown that the overall signal intensity is increased by a factor of ∼15. Implementation of this approach in the design of a tender X-ray spectroscopy endstation for LCLS-II is also discussed.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-76SF00515; AC02-05CH11231
OSTI ID:
1504514
Alternate ID(s):
OSTI ID: 1527378; OSTI ID: 1528876
Journal Information:
Journal of Synchrotron Radiation (Online), Journal Name: Journal of Synchrotron Radiation (Online) Vol. 26 Journal Issue: 3; ISSN 1600-5775
Publisher:
International Union of CrystallographyCopyright Statement
Country of Publication:
Denmark
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

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Figures / Tables (4)