Diffuse Vacuum Arc on the Nonthermionic Lead Cathode

Experimental study of the diffuse vacuum arc discharge on the nonthermionic lead cathode is presented. At the working cathode temperatures of 1.2-1.6-kK current-voltage characteristic of the discharge, cathode heat operation regime and its erosion rate were measured. Using probe methods, electron te...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on plasma science 2017-01, Vol.45 (1), p.140-147
Main Authors: Amirov, Ravil Kh, Gavrikov, Andrey V., Liziakin, Gennadii D., Polistchook Polishchuk, Vladimir P., Samoylov, Igor S., Smirnov, Valentin P., Usmanov, Ravil A., Vorona, Nazar A., Yartsev, Ivan M.
Format: Article
Language:English
Subjects:
Arc discharges
Cathodes
Discharge
Discharges (electric)
Electric currents
electrodes
Electrons
Experiments
Heating
Lead
plasma generation
Plasma physics
Plasma temperature
Temperature measurement
Vacuum arcs
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Experimental study of the diffuse vacuum arc discharge on the nonthermionic lead cathode is presented. At the working cathode temperatures of 1.2-1.6-kK current-voltage characteristic of the discharge, cathode heat operation regime and its erosion rate were measured. Using probe methods, electron temperature (0.3-1.2 eV) and heavy particles (atoms and ions) mean charge (0.17-0.28 e) were determined in after-anode plasma. Evaluated current densities on the cathode are in agreement with a hypothesis on the ion mechanism of charge transfer on its surface. Parameters of the obtained discharge have been compared with the characteristics of the earlier investigated diffuse vacuum arcs on nonthermionic chromium and on thermionic gadolinium cathodes. The obtained data might be useful when creating plasma sources for verifying the plasma separation method of the spent nuclear fuel using the nonradioactive substances.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2016.2634627