Formation of high-current electron beams in dense gases

Autor:	Victor M. Orlovskii, Aleksei N Tkachev, Sergey I. Yakovlenko, Sergey A. Shunailov, Victor F. Tarasenko
Rok vydání:	2004
Předmět:	Chemistry Atmospheric-pressure plasma Electron Plasma Cathode law.invention Anode Physics::Plasma Physics law Cathode ray Physics::Accelerator Physics Atomic physics Beam (structure) Diode
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.562986
Popis:	Subnanosecond electron beams with the record current amplitude (~70 A in air and ~200 A in helium) were produced at the atmospheric pressure. The optimal generator open-circuit voltage was found for which the electron-beam current amplitude produced in a gas diode was maximal behind a foil. It was established that electron beam was produced at the stage when the cathode plasma closely approaches anode. It was shown that a high-current beam can be produced at high pressures because of the presence of the upper branches in the curves characterizing the electron-escape (runaway) criterion and the discharge-ignition criterion (Paschen curve).© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Databáze:	OpenAIRE
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