Microchannel plate electron multiplier calibration using a discrete detector array

A fully integrated multi-channel detector for electron spectroscopy

“…All materials used are ultrahigh vacuum (UHV) compatible such that, following incorporation of the detector module, the spectroscopy chamber achieved its routine base pressure of below 10 -10 mbar. Preliminary testing of the array detector included measurement of the point spread function for the detector (using a technique of speckle imaging [5,6]), the determination of the noise floor, measurement of the array uniformity and determination of readout speed and maximum count rate. To determine the point spread function, the array was uniformly illuminated with electrons and a short integration time chosen such that no counter received more than one event per integration period.…”