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Measuring of plasma properties induced by non-vacuum electron beam welding

  • Electron beam plasma measurement was realised by means of DIABEAM system invented by ISF RWTH Aachen. The Langmuir probe method is used for measurement. The relative simplicity of the method and the possibility of dispersion of high power on the probe allow its application for the investigation of high-power electron beams. The key element of the method is a rotating thin tungsten wire, which intersects the beam transversely on its axis and collects part of the current by itself. The signals, which are registered in the DIABEAM as a voltage, were taken in the form of amplitude. The conversion of the probe current into the distribution along the beam radius was realised using the Abel’s method. A voltage-current characteristic was built for the beam current. The local electron density as well as the electron temperature, the floating potential and the plasma potential were measured and calculated by means of this characteristic.

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Metadaten
Author:Uwe Reisgen, Markus Schleser, Aydemir Abdurakhmanov, Andrey Gumenyuk
DOI:https://doi.org/10.1063/1.3675874
ISSN:1089-7674 (E-Journal); 1070-664X (Print)
Parent Title (English):Physics of plasma
Publisher:AIP Publishing
Place of publication:Melville, NY
Document Type:Article
Language:English
Year of Completion:2012
Date of the Publication (Server):2013/09/13
Volume:19
Issue:1
Length:Artikel 013106
First Page:1
Last Page:7
Link: https://doi.org/10.1063/1.3675874
Zugriffsart:weltweit
Institutes:FH Aachen / Fachbereich Maschinenbau und Mechatronik
collections:Verlag / AIP Publishing