Retractable Detector

The Cheetah, a single electron sensitive retractable detector has been recognized as an excellent solution for the microscopy society for various applications from basic electron diffraction (ED) experiments to uses in techniques such as Precession Electron Diffraction, 4D STEM (scanningTEM), cryo-EM and 3D ED Tomography, where standard CCD and CMOS detectors lack the competence to capture the information these methods can give.

This technology is based on sophisticated read-out ASICs, called Medipix/Timepix, where high resolution timing and spectral information of particles can be obtained. Get to know the hybrid pixel detector.


In practice, the Cheetah retractable detector is experimentally proven to be the ideal detector for low dose and fast applications, where high SNR is crucial especially on beam sensitive materials. The key scientists in protein crystallography[1], microED[2] and automated continuous rotation ED[3] have chosen the Cheetah detector for data acquisition in their ground-breaking research.

[1] E. van Genderen et al. Acta Cryst. A74, 709 (2018)

[2] M. Gemmi et al. ACS Cent. Sci. 5, 1315 (2019)

[3] S. Smeets et al. J. Appl. Cryst. 51, 1262 (2018)., H. J. (1982)