The Spatial Expansion of a Discharge in the Generation and the Channel Structure (in German)
The spatial expansion of a discharge was investigated under homogeneous field conditions, using an anode with a small central area separated from the remainder and wide band double beam oscillographic techniques. The discharge currents were initiated by electrons released along traces of single alpha particles in the gas between the electrodes. The k particles enter the gap volume through a small hole in the middle of the separated center of the anode. The measurements have shown that a secondary photon emission from the cathode causes a spreading over the total gap volume within the first few electron generations (N2, air, and CO2 at lower pressures). If a streamer mechanism occurs (O2 and CO2 at higher pressures), the discharge remains localized to the trace of the alpha particle, in which the avalanches yielded by the primary electrons have produced a high density of positive ions. New details of steamer mechanism are revealed by analyzing the rapid increase of the current during streamer formation.
- Research Organization:
- Universitat, Hamburg
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-017204
- OSTI ID:
- 4786447
- Journal Information:
- European Physical Journal. A, Vol. 166, Issue 1; Other Information: Orig. Receipt Date: 31-DEC-62; ISSN 1434-6001
- Publisher:
- Springer
- Country of Publication:
- Country unknown/Code not available
- Language:
- German
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