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Title: Ferroelectric Cathodes in Transverse Magnetic Fields

Experimental investigations of a planar ferroelectric cathode in a transverse magnetic field up to 3 kGs are presented. It is shown that the transverse magnetic field affects differently the operation of ferroelectric plasma cathodes in ''bright'' and ''dark'' modes in vacuum. In the ''bright'' mode, when the surface plasma is formed, the application of the transverse magnetic field leads to an increase of the surface plasma density. In the ''dark'' mode, the magnetic field inhibits the development of electron avalanches along the surface, as it does similarly in other kinds of surface discharges in the pre-breakdown mode.
Authors:
; ;
Publication Date:
OSTI Identifier:
808378
Report Number(s):
PPPL-3731
TRN: US0301996
DOE Contract Number:
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 29 Jul 2002
Research Org:
Princeton Plasma Physics Lab., NJ (US)
Sponsoring Org:
USDOE Office of Science (US)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CATHODES; ELECTRONS; MAGNETIC FIELDS; PLASMA; PLASMA DENSITY BEAMS, ELECTRON; MAGNETIC FIELD EFFECTS; SURFACE PHYSICS