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Title: INVESTIGATION OF THE DEVELOPMENT OF CANAL DISCHARGES IN GASES (in German)

Abstract

The temporal development of the current of a discharge leading to breakdown was investigated under static and homogeneous field conditions with wide band oscilloscopic techniques. The discharges were started by 10/sup 3/ to 10/sup 5/ electrons released within some 10/sup -9/ sec along traces of single alpha particles parallel to the electric field. Measurements showed that streamer mechanism occurs in gases as CH/sub 4/ and CO/sub 2/ at static breakdown, if a sufficient density of space charge is produced by a great number of overlapping avalanches. The gas amplification of the single avalanche only has a value of about 10/sup 5/. Also in O/sup 2/ and dry air at high pdvalues breakdown develops with streamer mechanism. In electronegative gases such as freon-12 and O/sub 2/ a prolongation of the time necessary for streamer formation is caused by the reduction of the effective total space charge by the negative ions. The results of a detailed study of the time necessary for streamer development and the time constant of the increase of the current leading to breakdown confirmed the model of streamer mechanism. (auth)

Authors:
Publication Date:
Research Org.:
Universitat Hamburg
OSTI Identifier:
4740431
NSA Number:
NSA-17-005158
Resource Type:
Journal Article
Journal Name:
Z. Physik
Additional Journal Information:
Journal Volume: Vol: 170; Journal Issue: 3; Other Information: Orig. Receipt Date: 31-DEC-63; Journal ID: ISSN 1434--6001
Country of Publication:
Country unknown/Code not available
Language:
German
Subject:
PHYSICS; AIR; ALPHA PARTICLES; BREAKDOWN; CARBON DIOXIDE; CURRENTS; DENSITY; ELECTRIC CHARGES; ELECTRIC DISCHARGES; ELECTRIC FIELDS; ELECTRONS; FREONS; GASES; IONS; MEASURED VALUES; METHANE; MULTIPLICATION FACTORS; OSCILLOGRAPHS; OXYGEN; PARTICLE TRACKS; PRODUCTION; SPACE CHARGE

Citation Formats

schlubohm, H. INVESTIGATION OF THE DEVELOPMENT OF CANAL DISCHARGES IN GASES. Country unknown/Code not available: N. p., 1962. Web. doi:10.1007/BF01378465.
schlubohm, H. INVESTIGATION OF THE DEVELOPMENT OF CANAL DISCHARGES IN GASES. Country unknown/Code not available. doi:10.1007/BF01378465.
schlubohm, H. Mon . "INVESTIGATION OF THE DEVELOPMENT OF CANAL DISCHARGES IN GASES". Country unknown/Code not available. doi:10.1007/BF01378465.
@article{osti_4740431,
title = {INVESTIGATION OF THE DEVELOPMENT OF CANAL DISCHARGES IN GASES},
author = {schlubohm, H.},
abstractNote = {The temporal development of the current of a discharge leading to breakdown was investigated under static and homogeneous field conditions with wide band oscilloscopic techniques. The discharges were started by 10/sup 3/ to 10/sup 5/ electrons released within some 10/sup -9/ sec along traces of single alpha particles parallel to the electric field. Measurements showed that streamer mechanism occurs in gases as CH/sub 4/ and CO/sub 2/ at static breakdown, if a sufficient density of space charge is produced by a great number of overlapping avalanches. The gas amplification of the single avalanche only has a value of about 10/sup 5/. Also in O/sup 2/ and dry air at high pdvalues breakdown develops with streamer mechanism. In electronegative gases such as freon-12 and O/sub 2/ a prolongation of the time necessary for streamer formation is caused by the reduction of the effective total space charge by the negative ions. The results of a detailed study of the time necessary for streamer development and the time constant of the increase of the current leading to breakdown confirmed the model of streamer mechanism. (auth)},
doi = {10.1007/BF01378465},
journal = {Z. Physik},
issn = {1434--6001},
number = 3,
volume = Vol: 170,
place = {Country unknown/Code not available},
year = {1962},
month = {1}
}