Access Restriction

Author Barrow, D.S. ♦ Ono, M. ♦ Pribyl, P.A. ♦ Taylor, R.J.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1991
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword Cathodes ♦ Tokamaks ♦ Plasma density ♦ Electric breakdown ♦ Plasma devices ♦ Laboratories ♦ Breakdown voltage ♦ Heating ♦ Vacuum breakdown ♦ Conductivity
Abstract Preionization of a tokamak discharge was performed in the CCT device with an emissive LaB/sub 6/ cathode and has been compared to initiation of discharges with a 15 kHz breakdown oscillator. The cathode produced plasmas with densities locally of up to 1.4*10/sup 19/ m/sup -3/, a factor of 100 denser than oscillator-produced plasmas, and five times more dense than the ohmic discharges in CCT. UV emissions indicate that the cathode plasma is concentrated in the top 20 cm of the vacuum vessel, while oscillator discharges and the main tokamak discharges occupy a much larger percentage of the vessel.<<ETX>>
Description Author affiliation: Plasma Phys. Lab., Princeton Univ., NJ, USA (Barrow, D.S.; Ono, M.)
ISBN 0780301323
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1991-09-30
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 335.21 kB
Page Count 4
Starting Page 157
Ending Page 160

Source: IEEE Xplore Digital Library