Electron microscopy
 
Nitrogen and its Application in EMs
- Practical Electron Microscopy and Database -
- An Online Book -
Microanalysis | EM Book                                                                                   http://www.globalsino.com/EM/        

This book (Practical Electron Microscopy and Database) is a reference for TEM and SEM students, operators, engineers, technicians, managers, and researchers.
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Manufacturers have attempted to use van de Graaff generators to supply high voltages to TEM systems, but the favorite voltage source is still Cockcroft–Walton voltage generator. Such voltage generators may be either air-insulated or confined in a tank filled with an insulating gas (e.g. freon, nitrogen, SF6) under pressure.

Note that liquid nitrogen is also used to cool cryostat in EDS detectors and to keep a low temperature for ACD (anti-contamination device)  (e.g. cold traps) in EMs.

 

 

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