RUN-AWAYS IN NEUTRAL GAS (in German)
The motion of electrons as determined by the field acceleration and the elastic and inelastic collisions with the gas atoms is calculated from the Boltzmann equation. The average velocity and the scattering ellipsoid are derived as a function of time. For particles starting from rest there exists always a critical electric fleld E/sub c/ depending on pressure and temperature. Below this critical value electrons approach the stationary drift process. Above the critical value the electrons do not reach a stationary state, they "run away.'' For a finite initial velocity v/sub 0/ and a field below the critical value E/sub c/ the particles are either accelerated to drift, or decelerated to drift, or " run away,'' depending on the value v/sub o/. From a calculation of the scattering panameters, it is found for E> E/sub c/ a focussing effect in the velocity space which increases with field strength. Also the relaxation time for the drift process and the stopping power for electron beams can be calculated. Applications to the glow discharge are discussed. (auth)
- Research Organization:
- Universitat, Bonn
- NSA Number:
- NSA-15-020018
- OSTI ID:
- 4061596
- Journal Information:
- Zeitschrift fuer Naturforschung (West Germany) Divided into Z. Nautrforsch., A, and Z. Naturforsch., B: Anorg. Chem., Org. Chem., Biochem., Biophys.,, Vol. Vol: 16a; Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- Country unknown/Code not available
- Language:
- German
Similar Records
Run-away electrons in relativistic spin (1) /(2) quantum electrodynamics
Relativistic electron beam acceleration by Compton scattering of extraordinary waves