학술논문

EIGER2 hybrid-photon-counting X-ray detectors for advanced synchrotron diffraction experiments
Document Type
article
Source
Journal of Synchrotron Radiation, Vol 30, Iss 4, Pp 723-738 (2023)
Subject
hybrid photon counting
pixel detector
silicon
cadmium telluride
count rate
quantum efficiency
eiger2
Nuclear and particle physics. Atomic energy. Radioactivity
QC770-798
Crystallography
QD901-999
Language
English
ISSN
1600-5775
16005775
Abstract
The ability to utilize a hybrid-photon-counting detector to its full potential can significantly influence data quality, data collection speed, as well as development of elaborate data acquisition schemes. This paper facilitates the optimal use of EIGER2 detectors by providing theory and practical advice on (i) the relation between detector design, technical specifications and operating modes, (ii) the use of corrections and calibrations, and (iii) new acquisition features: a double-gating mode, 8-bit readout mode for increasing temporal resolution, and lines region-of-interest readout mode for frame rates up to 98 kHz. Examples of the implementation and application of EIGER2 at several synchrotron sources (ESRF, PETRA III/DESY, ELETTRA, AS/ANSTO) are presented: high accuracy of high-throughput data in serial crystallography using hard X-rays; suppressing higher harmonics of undulator radiation, improving peak shapes, increasing data collection speed in powder X-ray diffraction; faster ptychography scans; and cleaner and faster pump-and-probe experiments.