By Topic

Optical investigation of arc spot formation on cold cathodes in air

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Nachtigall, K.P. ; Klockner Moller Elektrizitats-GmbH, Bonn, Germany ; Mentel, J.A.

The column of a high current arc was magnetically blown against a cathode positioned perpendicularly to the arc axis. A linearly increasing voltage was applied to this electrode. It was shown by high-speed photography that the arc spot ignition is initiated by an intensified light emission on the cathode within an area of approximately 40-μm diam. SEM micrographs from the traces produced during the ignition phase revealed that craters with diameters of some micrometers are formed within a burning spot, which corresponds in size to the optical spot. They are similar in size and shape to the craters formed by vacuum arcs on cathodes of the same material

Published in:

Plasma Science, IEEE Transactions on  (Volume:19 ,  Issue: 5 )