HIGH-CURRENT ELECTRON-BEAM GENERATION IN A VACUUM TRANSIENT HOLLOW-CATHODE DISCHARGE

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dc.contributor.authorCHUAQUI, H
dc.contributor.authorFAVRE, M
dc.contributor.authorSOTO, L
dc.contributor.authorWYNDHAM, ES
dc.date.accessioned2025-01-23T19:21:33Z
dc.date.available2025-01-23T19:21:33Z
dc.date.issued1993
dc.description.abstractExperimental observations are presented of prebreakdown electron beam generation in a Transient Hollow Cathode Discharge (THCD) in a vacuum. The discharge driver consists of a 400 kV maximum voltage, 25 nF Marx operated at 450 J stored energy coupled to a 120 ns, 1.5 Omega coaxial line. Electron beams with peak currents up to tens of kA are observed when a pulsed Nd-YAG laser is used to produce a plasma at the back Of the cathode surface, inside the Hollow Cathode Region (HCR). It is found that a plasma density of a few 10(18) cm(-3) in a volume of a few mm(3) is required to generate intense electron beams. Optimal conditions are determined by varying the position of the laser focal spot inside the HCR and the time delay between the laser and the applied voltage. The main features of the electron beams are similar to those observed in conventional THCD at pressures in the 10-200 mtorr range.
dc.fuente.origenWOS
dc.identifier.issn0093-3813
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/98800
dc.identifier.wosidWOS:A1993MQ94100020
dc.issue.numero6
dc.language.isoen
dc.pagina.final783
dc.pagina.inicio778
dc.revistaIeee transactions on plasma science
dc.rightsacceso restringido
dc.titleHIGH-CURRENT ELECTRON-BEAM GENERATION IN A VACUUM TRANSIENT HOLLOW-CATHODE DISCHARGE
dc.typeartículo
dc.volumen21
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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