Medipix 2 detector applied to low energy electron microscopy

van Gastel, R. and Sikharulidze, I. and Schramm, S. and Abrahams, J. P. and Poelsema, B. and Tromp, R. M. and van der Molen, S. J.. (2009) Medipix 2 detector applied to low energy electron microscopy. Ultramicroscopy, 110 (1). pp. 33-35.

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Official URL: https://edoc.unibas.ch/75931/

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Low energy electron microscopy (LEEM) and photo-emission electron microscopy (PEEM) traditionally use microchannel plates (MCPs), a phosphor screen and a CCD-camera to record images and diffraction patterns. In recent years, however, MCPs have become a limiting factor for these types of microscopy. Here, we report on a successful test series using a solid state hybrid pixel detector, Medipix 2, in LEEM and PEEM. Medipix 2 is a background-free detector with an infinite dynamic range, making it very promising for both real-space imaging and spectroscopy. We demonstrate a significant enhancement of both image contrast and resolution, as compared to MCPs. Since aging of the Medipix 2 detector is negligible for the electron energies used in LEEM/PEEM, we expect Medipix to become the detector of choice for a new generation of systems.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Structural Biology & Biophysics > Nano-diffraction of Biological Specimen (Abrahams)
UniBasel Contributors:Abrahams, Jan Pieter
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:05 Nov 2020 16:14
Deposited On:05 Nov 2020 16:14

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