This article has been updated in January 2024. High resolution images of microscopic samples can be obtained experimentally using Scanning Electron Transmission Microscopy (STEM). It is an effective ...

CeB 6 and tungsten are both thermionic sources with a filament referred to as a cathode, from which electrons are generated. The emission begins when the electrons are supplied with sufficient energy ...

In scanning electron microscopy, the deposition of electron beam induced hydrocarbon contamination is considered to be a persistent problem. Deposition of contamination on a sample is usually an ...