EIGER2 DETECTOR SYSTEMS: TOOLS FOR ADVANCED X-RAY STUDIES

15 Jul 2020, 18:00
20m
Zoom 890 9721 5207 ()

Zoom 890 9721 5207

Oral SR technological application and X-ray apparatus Technological solutions for SR centers/beamlines

Speaker

Dr Stefan Brandstetter (DECTRIS Ltd.)

Description

In the last decade, Hybrid Photon Counting (HPC) X-ray detectors [1] have transformed synchrotron research. They provide noise-free detection and make new data acquisition modes possible. The new HPC detector family EIGER2 enables even more ambitious X-ray science. These detectors combine all advantages of previous generations of HPC detectors
while offering new features and improved performance: maximum count rates of $10^{7}$ photons per pixel, two energy discriminating thresholds, and zero readout dead time.

The systems have pixel sizes of 75 µm × 75 µm, and feature frame rates up to 2 kHz. EIGER2 detectors are available both with silicon and with CdTe sensors to provide high quantum efficiency at energies up to 100 keV. Two adjustable energy thresholds allow for reduction of high-energy background such as from cosmic radiation or higher harmonics. These benefits advance established methods like crystallography and small angle X-ray scattering and empower new fields of research, such as X-ray photon correlation spectroscopy and coherent studies.

We will present results from detector characterization and application experiments and show how EIGER2 detector systems enable further advances in X-ray micro- and nanoanalysis.

References
[1] A. Förster et al., Philos. Trans. R. Soc. Math. Phys. Eng. Sci. 377, 20180241 (2019),
doi:10.1098/rsta.2018.0241.

Primary author

Dr Stefan Brandstetter (DECTRIS Ltd.)

Presentation Materials