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Title: Curved diamond-crystal spectrographs for x-ray free-electron laser noninvasive diagnostics

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4973326· OSTI ID:1373590
 [1];  [1];  [2];  [2]
  1. Technological Institute for Superhard and Novel Carbon Materials, Troitsk (Russian Federation)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)

Here, we report on the manufacturing and X-ray tests of bent diamond-crystal X-ray spectrographs, designed for noninvasive diagnostics of the X-ray free-electron laser (XFEL) spectra in the spectral range from 5 to 15 keV. The key component is a curved, 20-µm thin, single crystalline diamond triangular plate in the (110) orientation. The radius of curvature can be varied between R = 0.6 m and R = 0.1 m in a controlled fashion, ensuring imaging in a spectral window of up to 60 eV for ' 8 keV X-rays. All of the components of the bending mechanism (about 10 parts) are manufactured from diamond, thus ensuring safe operations in intense XFEL beams. The spectrograph is transparent to 88% for 5-keV photons, and to 98% for 15-keV photons. Therefore, it can be used for noninvasive diagnostics of the X-ray spectra during XFEL operations.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Russian Federation, Ministry of Education and Science
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1373590
Alternate ID(s):
OSTI ID: 1364181
Journal Information:
Review of Scientific Instruments, Vol. 87, Issue 12; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Diffraction properties of a strongly bent diamond crystal used as a dispersive spectrometer for XFEL pulses journal June 2019

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