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Title: Bunch mode specific rate corrections for PILATUS3 detectors

Abstract

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 themore » instant retrigger technology allows for data acquisition up to 15 million photons per second per pixel.« less

Authors:
 [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)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1212764
Alternate Identifier(s):
OSTI ID: 1392923
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Synchrotron Radiation (Online)
Additional Journal Information:
Journal Volume: 22; Journal Issue: 3; Journal ID: ISSN 1600-5775
Publisher:
International Union of Crystallography
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; PILATUS detectors; photon counting; count rate correction; Monte Carlo simulation

Citation Formats

Trueb, P., Dejoie, C., Kobas, M., Pattison, P., Peake, D. J., Radicci, V., Sobott, B. A., Walko, D. A., and Broennimann, C. Bunch mode specific rate corrections for PILATUS3 detectors. United States: N. p., 2015. Web. doi:10.1107/S1600577515003288.
Trueb, P., Dejoie, C., Kobas, M., Pattison, P., Peake, D. J., Radicci, V., Sobott, B. A., Walko, D. A., & Broennimann, C. Bunch mode specific rate corrections for PILATUS3 detectors. United States. doi:10.1107/S1600577515003288.
Trueb, P., Dejoie, C., Kobas, M., Pattison, P., Peake, D. J., Radicci, V., Sobott, B. A., Walko, D. A., and Broennimann, C. Thu . "Bunch mode specific rate corrections for PILATUS3 detectors". United States. doi:10.1107/S1600577515003288. https://www.osti.gov/servlets/purl/1212764.
@article{osti_1212764,
title = {Bunch mode specific rate corrections for PILATUS3 detectors},
author = {Trueb, P. and Dejoie, C. and Kobas, M. and Pattison, P. and Peake, D. J. and Radicci, V. and Sobott, B. A. and Walko, D. A. and Broennimann, C.},
abstractNote = {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.},
doi = {10.1107/S1600577515003288},
journal = {Journal of Synchrotron Radiation (Online)},
issn = {1600-5775},
number = 3,
volume = 22,
place = {United States},
year = {2015},
month = {4}
}

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