Jun 25 – 29, 2023
Ole-Johan Dahls Hus
Europe/Oslo timezone

P1.19: Use of the large area XSPA 500k detector for a time-resolved pump-probe-probe diffraction experiment at Synchrotron SOLEIL

Jun 26, 2023, 3:05 PM
Ole-Johan Spiseri (Ole-Johan Dahls Hus)

Ole-Johan Spiseri

Ole-Johan Dahls Hus

Ole Johan Dahls Hus - Oslo Science Park Gaustadalléen 23B, 0373 Oslo


Dr Fabienne Orsini (Synchrotron SOLEIL)


The XSPA 500k detector is an X-ray single photon counting hybrid pixel detector based on UFXC32k readout chips, that has been developed by Rigaku Corporation. The detector offers several unique features such as a seamless array of uniform pixels of 76 × 76 µm², very high-count rate, very fast readout, and an ultra-short multi-gating operation. The double-gating operation has been verified experimentally in a time resolved pump-probeprobe diffraction experiment.
Recently the XSPA detector was tested at CRISTAL beamline to demonstrate its operability to conduct such experiments (Fig. 1). A Ti3O5 powder sample was excited with femtosecond laser pulses, and its structural response was monitored with two consecutive diffraction images (double-gating). The first one, taken shortly after the pump pulse, to study the excited sample, and a second one, taken at a longer pump–probe delay hen the sample is completely relaxed. The second image can be used to ormalize the photoinduced signal on a shot-to-shot basis, thus increasing quality of the acquired data.
During the conference the performance of the detector and experimental results will be discussed and presented.

Primary author

Dr Arkadiusz Dawiec (Synchrotron SOLEIL)


Dr Claire Laulhé (Université Paris-Saclay, Synchrotron SOLEIL) Dr Erik Elkaim (Synchrotron SOLEIL) Mr Fabien Legrand (Synchrotron SOLEIL) Dr Fabienne Orsini (Synchrotron SOLEIL) Kazuyuki Matsushita (Rigaku) Dr Marie Andrae (Synchrotron SOLEIL) Masaya Hashimoto (Rigaku) Dr Pierre Fertey (Synchrotron SOLEIL) Takuto Sakumura (Rigaku) Yasutaka Sakuma (Rigaku)

Presentation materials