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REBEKA™ represents a new retractable BSE detector for electron microscopy which combines the best available single crystal scintillators manufactured in Crytur with precise high vacuum mechanics and readout electronics in one ready-to-use package.

The BSE detector is a scintillator based detection unit for scattered electrons which includes YAG:Ce scintillator and light-guide (Sensor Unit ), vacuum optical feed-through, bellows based vacuum retraction mechanism (Mechanical Unit ), photomultiplier (PMT) and Electronics Control Unit. The scintillator is a YAG:Ce single crystal with a conductive ITO coating. The scintillating light is detected by the PMT module. The retractable vacuum mechanics is motorized.