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Light-Induced In Situ Transmission Electron Microscopy for Observation of the Liquid-Soft Matter Interaction
Published on: July 26, 2022
Low voltage TEM: influences on electron energy loss spectrometry experiments
1University Service Center for Transmission Electron Microscopy, Technische Universität Wien, Wiedner Hauptstrasse 8-10, A-1040 Wien, Austria. stoeger@ustem.tuwien.ac.at
Abstract:
We discuss the advantages and disadvantages of electron energy loss spectrometry (EELS) a transmission electron microscope (TEM) at different high tensions. Instrumental effects such as energy resolution, spatial resolution, and point spread function of the detecting system, as well as physical effects like inelastic (Coloumb) delocalization and Cerenkov losses are dealt with. It is found that the actually available equipment is suitable for performing low voltage experiments. The energy resolution of a thermo-ionic emitter can be tremendously improved at lower energies, and the detector also has advantageous behaviour.
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