Cathode region of a vapour arc

Cathode region of a vapour arc

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ABSTRACT THE total potential across a short arc discharge is normally a few tens of volts, and the cathode and anode falls, the regions of high field close to the electrodes, account for a large proportion of this. The small thickness and high current density in the cathode and anode fall sheaths make measurements of potential in these regions very difficult. In the past, the sum of the electrode potential falls has been found either by extrapolating voltage-length plots to zero length, or by measuring the arc voltage on an oscilloscope just before approaching electrodes contact1, but it has not been possible to determine their individual contributions unambiguously. The thickness of these regions has also remained a matter of conjecture. Access through your institution Buy or subscribe This is a preview of subscription content, access via your institution ACCESS OPTIONS Access through your institution Subscribe to this journal Receive 51 print issues and online access $199.00 per year only $3.90 per issue Learn more Buy this article * Purchase on SpringerLink * Instant access to full article PDF Buy now Prices may be subject to local taxes which are calculated during checkout ADDITIONAL ACCESS OPTIONS: * Log in * Learn about institutional subscriptions * Read our FAQs * Contact customer support SIMILAR CONTENT BEING VIEWED BY OTHERS SPLASHING OF TUNGSTEN-BASED ANODE DURING ARC DISCHARGE Article Open access 27 July 2023 TWO-DIMENSIONAL ANALYTICAL DESCRIPTION OF THE PLASMA POTENTIAL IN A MAGNETRON DISCHARGE Article Open access 23 September 2023 AN INTEGRATED APPROACH TO UNDERSTANDING RF VACUUM ARCS Article Open access 27 January 2021 REFERENCES * von Engel, A., _Ionised Gases_, second ed., 274 (Oxford Univ. Press, 1965). Google Scholar  * von Engel, A., and Robson, A. E., _Proc. Roy. Soc._, A, 242, 217 (1957). Article  ADS  Google Scholar  Download references AUTHOR INFORMATION Author notes * D. J. DICKSON Present address: Research Centre, The Electricity Council, Capenhurst, Chester AUTHORS AND AFFILIATIONS * Department of Electrical Engineering, Imperial College of Science and Technology, London, S.W.7. D. J. DICKSON Authors * D. J. DICKSON View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE DICKSON, D. Cathode Region of a Vapour Arc. _Nature_ 212, 64–65 (1966). https://doi.org/10.1038/212064a0 Download citation * Issue Date: 01 October 1966 * DOI: https://doi.org/10.1038/212064a0 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable link Sorry, a shareable link is not currently available for this article. Copy to clipboard Provided by the Springer Nature SharedIt content-sharing initiative

ABSTRACT THE total potential across a short arc discharge is normally a few tens of volts, and the cathode and anode falls, the regions of high field close to the electrodes, account for a


large proportion of this. The small thickness and high current density in the cathode and anode fall sheaths make measurements of potential in these regions very difficult. In the past, the


sum of the electrode potential falls has been found either by extrapolating voltage-length plots to zero length, or by measuring the arc voltage on an oscilloscope just before approaching


electrodes contact1, but it has not been possible to determine their individual contributions unambiguously. The thickness of these regions has also remained a matter of conjecture. Access


through your institution Buy or subscribe This is a preview of subscription content, access via your institution ACCESS OPTIONS Access through your institution Subscribe to this journal


Receive 51 print issues and online access $199.00 per year only $3.90 per issue Learn more Buy this article * Purchase on SpringerLink * Instant access to full article PDF Buy now Prices may


be subject to local taxes which are calculated during checkout ADDITIONAL ACCESS OPTIONS: * Log in * Learn about institutional subscriptions * Read our FAQs * Contact customer support


SIMILAR CONTENT BEING VIEWED BY OTHERS SPLASHING OF TUNGSTEN-BASED ANODE DURING ARC DISCHARGE Article Open access 27 July 2023 TWO-DIMENSIONAL ANALYTICAL DESCRIPTION OF THE PLASMA POTENTIAL


IN A MAGNETRON DISCHARGE Article Open access 23 September 2023 AN INTEGRATED APPROACH TO UNDERSTANDING RF VACUUM ARCS Article Open access 27 January 2021 REFERENCES * von Engel, A., _Ionised


Gases_, second ed., 274 (Oxford Univ. Press, 1965). Google Scholar  * von Engel, A., and Robson, A. E., _Proc. Roy. Soc._, A, 242, 217 (1957). Article  ADS  Google Scholar  Download


references AUTHOR INFORMATION Author notes * D. J. DICKSON Present address: Research Centre, The Electricity Council, Capenhurst, Chester AUTHORS AND AFFILIATIONS * Department of Electrical


Engineering, Imperial College of Science and Technology, London, S.W.7. D. J. DICKSON Authors * D. J. DICKSON View author publications You can also search for this author inPubMed Google


Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE DICKSON, D. Cathode Region of a Vapour Arc. _Nature_ 212, 64–65 (1966).


https://doi.org/10.1038/212064a0 Download citation * Issue Date: 01 October 1966 * DOI: https://doi.org/10.1038/212064a0 SHARE THIS ARTICLE Anyone you share the following link with will be


able to read this content: Get shareable link Sorry, a shareable link is not currently available for this article. Copy to clipboard Provided by the Springer Nature SharedIt content-sharing


initiative