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Title: Pulse-resolved intensity measurements at a hard X-ray FEL using semi-transparent diamond detectors

Journal Article · · Journal of Synchrotron Radiation (Online)
 [1];  [2];  [2];  [3];  [3];  [4];  [5];  [6];  [6];  [2];  [2]
  1. European X-ray Free-Electron Laser Facility, Schenefeld (Germany); European Synchrotron Radiation Facility, Grenoble (France)
  2. European X-ray Free-Electron Laser Facility, Schenefeld (Germany)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. Micron Semiconductors Ltd., Lancing (United Kingdom)
  5. Immanuel Kant Baltic Federal Univ., Kalinigrad (Russian Federation)
  6. Univ. Augsburg, Augsburg (Germany)

Solid-state ionization chambers are presented based on thin diamond crystals that allow pulse-resolved intensity measurements at a hard X-ray free-electron laser (FEL), up to the 4.5 MHz repetition rate that will become available at the European XFEL. Due to the small X-ray absorption of diamond the thin detectors are semi-transparent which eases their use as non-invasive monitoring devices in the beam. FELs are characterized by strong pulse-to-pulse intensity fluctuations due to the self-amplified spontaneous emission (SASE) process and in many experiments it is mandatory to monitor the intensity of each individual pulse. Two diamond detectors with different electrode materials, beryllium and graphite, were tested as intensity monitors at the XCS endstation of the Linac Coherent Light Source (LCLS) using the pink SASE beam at 9 keV. The performance is compared with LCLS standard monitors that detect X-rays backscattered from thin SiN foils placed in the beam. In conclusion, the graphite detector can also be used as a beam position monitor although with rather coarse resolution.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1417650
Journal Information:
Journal of Synchrotron Radiation (Online), Vol. 25, Issue 1; ISSN 1600-5775
Publisher:
International Union of CrystallographyCopyright 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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Cited By (7)

Development of a hard X-ray split-and-delay line and performance simulations for two-color pump-probe experiments at the European XFEL journal June 2018
Thermomechanical response of thickly tamped targets and diamond anvil cells under pulsed hard x-ray irradiation journal May 2020
Pulse power measurements and attenuator characterization of the hard X-ray beamline at the Linac Coherent Light Source
  • Song, Sanghoon; Alonso-Mori, Roberto; Chollet, Matthieu
  • X-Ray Free-Electron Lasers: Advances in Source Development and Instrumentation V https://doi.org/10.1117/12.2520827
conference May 2019
Development of a hard X-ray split-and-delay line and performance simulations for two-color pump-probe experiments at the European XFEL text January 2018
X-ray photon diagnostics at the European XFEL text January 2019
Pulse power measurements and attenuator characterization of the hard X-ray beamline at the Linac Coherent Light Source text January 2019
Thermomechanical response of thickly tamped targets and diamond anvil cells under pulsed hard x-ray irradiation text January 2018

Figures / Tables (11)


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