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  High-resolution imaging of vacuum arc cathode spots

Anders, A., Anders, S., Jüttner, B., & Lück, H. (1996). High-resolution imaging of vacuum arc cathode spots. IEEE Transactions on Plasma Science, 24(1), 69-70. doi:10.1109/27.491695.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-CAC2-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-CAC3-1
Genre: Journal Article

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 Creators:
Anders, A.1, Author
Anders, S.1, Author
Jüttner, B.1, Author
Lück, H.2, Author              
Affiliations:
1External Organizations, escidoc:persistent22              
2Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, escidoc:24010              

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 Abstract: Imaging differential laser absorption spectroscopy was used to map the electron density distribution of vacuum arc cathode spots. The temporal resolution was determined by the sequence of laser pulses (pulses of 0.4-ns duration, with 3-ns separation). The spatial resolution was limited by diffraction (better than 5 μm). Fragments of cathode spots have been detected, and the following parameters could be derived: current density on the order of 1012 A/m2 , plasma density greater than 3-6×1026 m-3 , fragment size 5-10 μm and smaller, current per fragment 20-40 A (for copper electrodes and are current 50-150 A), and the lifetime of dense plasma on the order of a few nanoseconds

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 Dates: 1996-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1109/27.491695
 Degree: -

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Title: IEEE Transactions on Plasma Science
Source Genre: Journal
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Publ. Info: New York : Institute of Electrical and Electronics Engineers.
Pages: - Volume / Issue: 24 (1) Sequence Number: - Start / End Page: 69 - 70 Identifier: ISSN: 0093-3813
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/954925463189