Collision cascade temperature
Collision cascade temperature
- Neue Suche nach: Kudriavtsev, Yuriy
- Neue Suche nach: Asomoza, Rene
- Neue Suche nach: Kudriavtsev, Yuriy
- Neue Suche nach: Asomoza, Rene
Interaction of a projectile with a solid has been considered in detail. It has been found that any collision cascade generated by a projectile can be characterized by the average kinetic energy of cascade atoms that represents an 'instantaneous temperature' of the cascade during its very short lifetime (10-12 s). We refer to this value as the 'dynamic temperature' in order to emphasize the fact that cascade atoms are in a dynamic equilibrium and have a definite energy distribution. The dynamic temperature defines the electron distribution in the cascade area and, hence, the ionization probability of sputtered atoms. The energy distribution of cascade atoms and, as a consequence, the dynamic temperature can be found experimentally by measuring the energy distribution of sputtered atoms. The calculated dynamic temperature has been found to be in good agreement with the experimental data on ion formation in the case of cesium and oxygen ion sputtering of silicon. Based on the developed model we suggest an experimental technique for a radical improvement of the existing cascade sputtering models.
Dokumentinformationen
Collision cascade temperature
Stoßkaskadentemperatur
2008
5 Seiten, 11 Quellen
Aufsatz (Zeitschrift)
Englisch
Ähnliche Titel
A High Temperature Elastic Collision Model for DSMC Based on Collision Integrals
| British Library Conference Proceedings | 2006
Continuous-Wave, Room-Temperature Quantum Cascade Lasers
| British Library Online Contents | 2006
Collision Integrals of High-Temperature Air Species
| AIAA | 2000
Temperature dependent nonlinear response of quantum cascade structures
| British Library Online Contents | 2014