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J Synchrotron Radiat. 2017 Sep 01;24:1082-1085. doi: 10.1107/S1600577517009158. Epub 2017 Aug 17.

Non-uniform nanosecond gate-delay of hybrid pixel detectors.

Journal of synchrotron radiation

Roman Shayduk, David Pennicard, Konstantin Krausert, Peter Gaal, Sergey Volkov, Vedran Vonk, Uta Hejral, Maciej Jankowski, Matthias Reinhardt, Wolfram Leitenberger, Andreas Stierle

Affiliations

  1. Deutsches Elektronen-Synchrotron (DESY), D-22603 Hamburg, Germany.
  2. Physics Department, University of Hamburg, Germany.
  3. European Synchrotron Radiation Facility (ESRF), Grenoble, France.
  4. Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Wilhelm-Conrad-Röntgen Campus, BESSY II, Albert-Einstein-Strasse 15, 12489 Berlin, Germany.

PMID: 28862632 DOI: 10.1107/S1600577517009158

Abstract

A simple experiment to characterize the gating properties of X-ray area detectors using pulsed X-ray sources is presented. For a number of time-resolved experiments the gating uniformity of area detectors is important. Relative gating delays between individual modules and readout chips of PILATUS2 series area X-ray detectors have been observed. For three modules of a PILATUS 300K-W unit the maximum gating offset between the modules is found to be as large as 30 ns. On average, the first photosensor module is found to be triggered 15 ns and 30 ns later than the second and the third modules, respectively.

Keywords: hybrid pixel X-ray detector; jitter; pump–probe X-ray diffraction; timing; triggering

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