Influence of crossed electric and magnetic fields upon the breakdown voltage and prebreakdown current in vacuum
An experimental study is presented for the dependence of the breakdown voltage and the prebreakdown current on the crossed electrical and magnetic fields in vacuum. The magnetic field is varied in the range 0--250 G and the gap separation 0.5--3 cm. Bruce profiled copper electrodes which have been prebaked either in vacuum or hydrogen were employed. The breakdown voltage and the prebreakdown current are presented as functions of the magnetic flux density at fixed gap separation as well as at fixed flux density as functions of the gap separation. Comparison is made between these functions and curves calculated from the theory of the magnetic perturbation of the field emission from protrusions covered with semiconducting oxide layers and good agreement is obtained.
- Research Organization:
- Electrical Engineering Department, University of Windsor, Windsor, Ontario, Canada, N9B 3P4
- OSTI ID:
- 5314144
- Journal Information:
- J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 51:5; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
BREAKDOWN
CHALCOGENIDES
COMPARATIVE EVALUATIONS
COPPER
CRYOGENIC FLUIDS
CURRENTS
DATA
ELECTRIC CURRENTS
ELECTRIC FIELDS
ELECTRIC POTENTIAL
ELECTRODES
ELEMENTS
FLUIDS
FLUX DENSITY
HEAT TREATMENTS
HYDROGEN
INFORMATION
LAYERS
MAGNETIC FIELDS
MAGNETIC FLUX
MATERIALS
MATHEMATICAL MODELS
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
SEMICONDUCTOR MATERIALS
TRANSITION ELEMENTS