First pump–probe–probe hard X-ray diffraction experiments with a 2D hybrid pixel detector developed at the SOLEIL synchrotron

Author:

Bachiller-Perea Diana,Abiven Yves-Marie,Bisou Jérôme,Fertey Pierre,Grybos Pawel,Jarnac Amélie,Kanouté Brahim,Koziol Anna,Langlois Florent,Laulhé Claire,Legrand Fabien,Maj Piotr,Menneglier Claude,Noureddine Arafat,Orsini Fabienne,Thibaux Gauthier,Dawiec Arkadiusz

Abstract

A new photon-counting camera based on hybrid pixel technology has been developed at the SOLEIL synchrotron, making it possible to implement pump–probe–probe hard X-ray diffraction experiments for the first time. This application relies on two specific advantages of the UFXC32k readout chip, namely its high frame rate (50 kHz) and its high linear count rate (2.6 × 106 photons s−1 pixel−1). The project involved the conception and realization of the chips and detector carrier board, the data acquisition system, the server with its specific software, as well as the mechanical and cooling systems. This article reports on in-laboratory validation tests of the new detector, as well as on tests performed at the CRISTAL beamline within the targeted experimental conditions. A benchmark experiment was successfully performed, showing the advantages of the pump–probe–probe scheme in correcting for drifts of the experimental conditions.

Funder

National Science Center, Poland

Publisher

International Union of Crystallography (IUCr)

Subject

Instrumentation,Nuclear and High Energy Physics,Radiation

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