Sputtering/Knock-on of Atoms from
Beam-Exit Surface of TEM Sample
- Practical Electron Microscopy and Database -
- An Online 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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The sputtering crater in TEM specimens forms mainly on the beam-exit surface because the chemical bonds at that surface are weakest due to the correlation between the atom position and the incident beam direction. Figure 4406 shows schametic diagram of sputtering (also called knock-on) of atoms from the beam-exist surface of the TEM sample. The spheres represent atoms in the materials.

Schametic diagram of sputtering of atoms from the beam-exist surface of the TEM sample

Figure 4406. Schametic diagram of sputtering of atoms from the beam-exist surface of the TEM sample.

 

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