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Spark Channels

Abstract

A brief summary is given of the principal methods used for initiating spark channels and the various highly time-resolved techniques developed recently for studies with nanosecond resolution. The importance of the percentage overvoltage in determining the early history and subsequent development of the various phases of the growth of the spark channel is discussed. An account is then given of the recent photographic, oscillographic and spectroscopic investigations of spark channels initiated by co-axial cable discharges of spark gaps at low [{approx} 1%] overvoltages. The phenomena observed in the development of the immediate post-breakdown phase, the diffuse glow structure, the growth of the luminous filament and the final formation of the spark channel in hydrogen are described. A brief account is also given of the salient features emerging from corresponding studies of highly overvolted spark gaps in which the spark channel develops from single avalanche conditions. The essential differences between the two types of channel formation are summarized and possible explanations of the general features are indicated. (author)
Authors:
Haydon, S. C. [1] 
  1. Department of Physics, University of New England, Armidale, NSW (Australia)
Publication Date:
Apr 15, 1968
Product Type:
Conference
Resource Relation:
Conference: 8. international conference on phenomena in ionized gases, Vienna (Austria), 27 Aug - 2 Sep 1967; Other Information: 37 refs., 22 figs.; Related Information: In: A Survey of Phenomena in Ionized Gases. Invited Papers. A Collection of Invited Papers Presented at the Eighth International Conference on Phenomena in Ionized Gases| 746 p.
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BREAKDOWN; HYDROGEN; OVERVOLTAGE; SPARK GAPS; TIME RESOLUTION
OSTI ID:
22106357
Research Organizations:
Technische Hochschule Wien, Vienna (Austria); Oesterreichische Studiengesellschaft fuer Atomenergie, Vienna (Austria); International Atomic Energy Agency, Vienna (Austria); International Union of Pure and Applied Physics, London (United Kingdom)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA13M0890064178
Submitting Site:
INIS
Size:
page(s) 495-518
Announcement Date:
Jun 20, 2013

Citation Formats

Haydon, S. C. Spark Channels. IAEA: N. p., 1968. Web.
Haydon, S. C. Spark Channels. IAEA.
Haydon, S. C. 1968. "Spark Channels." IAEA.
@misc{etde_22106357,
title = {Spark Channels}
author = {Haydon, S. C.}
abstractNote = {A brief summary is given of the principal methods used for initiating spark channels and the various highly time-resolved techniques developed recently for studies with nanosecond resolution. The importance of the percentage overvoltage in determining the early history and subsequent development of the various phases of the growth of the spark channel is discussed. An account is then given of the recent photographic, oscillographic and spectroscopic investigations of spark channels initiated by co-axial cable discharges of spark gaps at low [{approx} 1%] overvoltages. The phenomena observed in the development of the immediate post-breakdown phase, the diffuse glow structure, the growth of the luminous filament and the final formation of the spark channel in hydrogen are described. A brief account is also given of the salient features emerging from corresponding studies of highly overvolted spark gaps in which the spark channel develops from single avalanche conditions. The essential differences between the two types of channel formation are summarized and possible explanations of the general features are indicated. (author)}
place = {IAEA}
year = {1968}
month = {Apr}
}