Bragg coherent diffraction imaging with the CITIUS charge-integrating detector

Michael Grimes, Kristof Pauwels, Tobias U. Schülli, Thierry Martin, Pablo Fajardo, Paul Antoine Douissard, Menyhert Kocsis, Haruki Nishino, Kyosuke Ozaki, Yoshiaki Honjo, Toshiyuki Nishiyama Hiraki, Yasumasa Joti, Takaki Hatsui, Mor Levi, Eugen Rabkin, Steven J. Leake, Marie Ingrid Richard, S. Boutet

Research output: Contribution to journalArticlepeer-review

Abstract

The CITIUS detector is a next-generation high-speed X-ray imaging detector. It has integrating-type pixels and is designed to show a consistent linear response at a frame rate of 17.4 kHz, which results in a saturation count rate of over 30Mcpspixel-1when operating at an acquisition duty cycle close to 100%, and up to 20 times higher with special extended acquisition modes. Here, its application for Bragg coherent diffraction imaging is demonstrated by taking advantage of the fourth-generation Extremely Brilliant Source of the European Synchrotron (ESRF-EBS, Grenoble, France). The CITIUS detector outperformed a photon-counting detector, similar spatial resolution being achieved (20±6nm versus 22±9nm) with greatly reduced acquisition times (23s versus 200s). It is also shown how the CITIUS detector can be expected to perform during dynamic Bragg coherent diffraction imaging measurements. Finally, the current limitations of the CITIUS detector and further optimizations for coherent imaging techniques are discussed.

Original languageEnglish
Pages (from-to)1032-1037
Number of pages6
JournalJournal of Applied Crystallography
Volume56
DOIs
StatePublished - 12 Jun 2023

Keywords

  • Bragg coherent diffraction imaging
  • charge-integrating detectors
  • dynamic range
  • fourth-generation synchrotrons
  • photon-counting detectors

All Science Journal Classification (ASJC) codes

  • General Biochemistry,Genetics and Molecular Biology

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