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Title: Anode spot: a review of experimental work and suggested areas for future investigation

Abstract

The anode spot in vacuum arcs is discussed; presently available experimental work and desirable areas for future work are examined. The following subjects are discussed: the transition of the arc into the anode spot mode; the temperature of the anode before, during, and after formation of an anode spot; and anode ions. Under appropriate experimental conditions formation of an anode spot may be preceded by the formation of an anode footpoint. This footpoint is luminous, but much cooler than a true anode spot. A fully developed anode spot has a temperature near the atmospheric boiling point of the anode material and is a copious source of vapor and energetic ions. A need exists for temperature measurements on anode spots in dc arcs. No measurements have been made on anode spots in arcs with rectangular current pulses whose durations are in the millisecond range, so measurements on any parameters of anode spots in such arcs would be desirable. 2 figures, 9 tables, 34 references.

Authors:
Publication Date:
Research Org.:
General Electric Co., St. Petersburg, FL (USA). Neutron Devices Dept.
OSTI Identifier:
6798297
Alternate Identifier(s):
OSTI ID: 6798297
Report Number(s):
GEPP-394
DOE Contract Number:  
EY-76-C-04-0656
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ELECTRIC ARCS; REVIEWS; ALUMINIUM; ANODES; COPPER; RECOMMENDATIONS; TIN; CURRENTS; DOCUMENT TYPES; ELECTRIC CURRENTS; ELECTRIC DISCHARGES; ELECTRODES; ELEMENTS; METALS; TRANSITION ELEMENTS 640420* -- Fluid Physics-- Properties & Structure of Fluids-- (-1987)

Citation Formats

Miller, H.C. Anode spot: a review of experimental work and suggested areas for future investigation. United States: N. p., 1978. Web.
Miller, H.C. Anode spot: a review of experimental work and suggested areas for future investigation. United States.
Miller, H.C. Fri . "Anode spot: a review of experimental work and suggested areas for future investigation". United States. doi:.
@article{osti_6798297,
title = {Anode spot: a review of experimental work and suggested areas for future investigation},
author = {Miller, H.C.},
abstractNote = {The anode spot in vacuum arcs is discussed; presently available experimental work and desirable areas for future work are examined. The following subjects are discussed: the transition of the arc into the anode spot mode; the temperature of the anode before, during, and after formation of an anode spot; and anode ions. Under appropriate experimental conditions formation of an anode spot may be preceded by the formation of an anode footpoint. This footpoint is luminous, but much cooler than a true anode spot. A fully developed anode spot has a temperature near the atmospheric boiling point of the anode material and is a copious source of vapor and energetic ions. A need exists for temperature measurements on anode spots in dc arcs. No measurements have been made on anode spots in arcs with rectangular current pulses whose durations are in the millisecond range, so measurements on any parameters of anode spots in such arcs would be desirable. 2 figures, 9 tables, 34 references.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 01 00:00:00 EDT 1978},
month = {Fri Sep 01 00:00:00 EDT 1978}
}

Technical Report:
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