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Title: Bunch mode specific rate corrections for PILATUS3 detectors

Journal Article · · Journal of Synchrotron Radiation (Online)
 [1];  [2];  [1];  [3];  [4];  [1];  [4];  [5];  [1]
  1. DECTRIS Ltd., Baden (Switzerland)
  2. ETH Zurich, Zurich (Switzerland)
  3. EPF Lausanne, Lausanne (Switzerland)
  4. Univ. of Melbourne, Victoria (Australia). School of Physics.
  5. Argonne National Lab. (ANL), Argonne, IL (United States)
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PILATUS X-ray detectors are in operation at many synchrotron beamlines around the world. This article reports on the characterization of the new PILATUS3 detector generation at high count rates. As for all counting detectors, the measured intensities have to be corrected for the dead-time of the counting mechanism at high photon fluxes. The large number of different bunch modes at these synchrotrons as well as the wide range of detector settings presents a challenge for providing accurate corrections. To avoid the intricate measurement of the count rate behaviour for every bunch mode, a Monte Carlo simulation of the counting mechanism has been implemented, which is able to predict the corrections for arbitrary bunch modes and a wide range of detector settings. This article compares the simulated results with experimental data acquired at different synchrotrons. It is found that the usage of bunch mode specific corrections based on this simulation improves the accuracy of the measured intensities by up to 40% for high photon rates and highly structured bunch modes. For less structured bunch modes, the instant retrigger technology of PILATUS3 detectors substantially reduces the dependency of the rate correction on the bunch mode. The acquired data also demonstrate that the instant retrigger technology allows for data acquisition up to 15 million photons per second per pixel.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1212764
Alternate ID(s):
OSTI ID: 1392923
Journal Information:
Journal of Synchrotron Radiation (Online), Vol. 22, Issue 3; 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

References (9)

A low-background-intensity focusing small-angle X-ray scattering undulator beamline journal November 2013
Reconstructing state mixtures from diffraction measurements journal February 2013
Improved count rate corrections for highest data quality with PILATUS detectors journal March 2012
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The optics beamline at the Swiss Light Source
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journal October 2009
The Structure of the Eukaryotic Ribosome at 3.0 A Resolution journal November 2011
The new PILATUS3 ASIC with instant retrigger capability
  • Loeliger, Teddy; Bronnimann, Christian; Donath, Tilman
  • 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference (2012 NSS/MIC), 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC) https://doi.org/10.1109/NSSMIC.2012.6551180
conference October 2012
Success and failure of dead-time models as applied to hybrid pixel detectors in high-flux applications journal January 2013
The 7BM beamline at the APS: a facility for time-resolved fluid dynamics measurements journal May 2012

Cited By (3)

High-energy X-ray applications: current status and new opportunities journal December 2017
Transforming X-ray detection with hybrid photon counting detectors
  • Förster, Andreas; Brandstetter, Stefan; Schulze-Briese, Clemens
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 377, Issue 2147 https://doi.org/10.1098/rsta.2018.0241
journal April 2019
Picosecond pump–probe X-ray scattering at the Elettra SAXS beamline journal January 2020

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Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
PILATUS detectors
photon counting
count rate correction
Monte Carlo simulation