Open AccessCharacterization and performance evaluation of the XSPA‐500k detector using synchrotron radiation
Author(s) -
Nakaye Yasukazu,
Sakumura Takuto,
Sakuma Yasutaka,
Mikusu Satoshi,
Dawiec Arkadiusz,
Orsini Fabienne,
Grybos Pawel,
Szczygiel Robert,
Maj Piotr,
Ferrara Joseph D.,
Taguchi Takeyoshi
Publication year - 2021
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577520016665
Subject(s) - detector , physics , synchrotron , optics , beamline , synchrotron radiation , frame rate , high dynamic range , dynamic range , data acquisition , computer science , beam (structure) , operating system
Hybrid photon counting (HPC) detectors are widely used at both synchrotron facilities and in‐house laboratories. The features of HPC detectors, such as no readout noise, high dynamic range, high frame rate, excellent point spread function, no blurring etc. along with fast data acquisition, provide a high‐performance detector with a low detection limit and high sensitivity. Several HPC detector systems have been developed around the world. A number of them are commercially available and used in academia and industry. One of the important features of an HPC detector is a fast readout speed. Most HPC detectors can easily achieve over 1000 frames s −1 , one or two orders of magnitude faster than conventional CCD detectors. Nevertheless, advanced scientific challenges require ever faster detectors in order to study dynamical phenomena in matter. The XSPA‐500k detector can achieve 56 kframes s −1 continuously, without dead‐time between frames. Using `burst mode', a special mode of the UFXC32k ASIC, the frame rate reaches 1 000 000 frames s −1 . XSPA‐500k was fully evaluated at the Metrology beamline at Synchrotron SOLEIL (France) and its readout speed was confirmed by tracking the synchrotron bunch time structure. The uniformity of response, modulation transfer function, linearity, energy resolution and other performance metrics were also verified either with fluorescence X‐rays illuminating the full area of the detector or with the direct beam.