title: Principles and prospects of direct high resolution electron image acquisition with CMOS detectors at low energies.
abstract: Two types of direct electron detectors, potentially useful in low energy electron microscopy and photoemission electron microscopy (LEEM/PEEM) experiments, are reviewed in this paper. Hybrid pixel detectors, using a silicon sensor and based on Medipix2 offer a high detective quantum efficiency, due to an essentially noiseless readout, but are technically challenging. Backthinned monolithic active pixel sensors (MAPS) are not noise-free but have other advantages as discussed in this review.
authors.affiliation: MRC Laboratory of Molecular Biology, Hills Road, Cambridge CB2 0QH, UK.
authors.forename: A R
authors.initials: AR
authors.lastname: Faruqi