Interaction dynamics of hollow cathode discharge plasmas

A. Y. Ho, Spencer Kuo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Summary form only given, as follows. An experiment was set up for the study of arc dynamics and the interaction between two arcs. Two pairs of electrodes placed inside a bell jar having a height 30 in and a diameter of 18 in were used for electrical discharge. Argon plasma was produced in a background pressure of 1 to 10 torr through a steady-state hollow cathode discharge where the cathode was made of tantalum tubing, allowing argon gas to flow through. The separations among these electrodes were 8 in vertically and 4 in horizontally. The current of each arc was about 10 A. The diameter of each arc column varied from 2 to 4 cm for the constricted mode to a few inches for the diffused mode. The arcs are in the constricted mode when the operating current is high. Constricted arcs are more stable, except sometimes these two arcs may merge in the central region through the pinch effect. A striation along the constricted arc column was also observed frequently. It is confirmed that global modes can be generated by thermal instability in a constricted arc.

Original languageEnglish (US)
Title of host publicationIEEE Conference Record - Abstracts
PublisherPubl by IEEE
Pages183
Number of pages1
StatePublished - 1990
Event1990 IEEE International Conference on Plasma Science - Oakland, CA, USA
Duration: May 21 1990May 23 1990

Other

Other1990 IEEE International Conference on Plasma Science
CityOakland, CA, USA
Period5/21/905/23/90

Fingerprint

Beam plasma interactions
Argon
Pinch effect
Cathodes
Plasmas
Electrodes
Tantalum
Tubing
Gases
Experiments
Hot Temperature

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Ho, A. Y., & Kuo, S. (1990). Interaction dynamics of hollow cathode discharge plasmas. In IEEE Conference Record - Abstracts (pp. 183). Publ by IEEE.

Interaction dynamics of hollow cathode discharge plasmas. / Ho, A. Y.; Kuo, Spencer.

IEEE Conference Record - Abstracts. Publ by IEEE, 1990. p. 183.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ho, AY & Kuo, S 1990, Interaction dynamics of hollow cathode discharge plasmas. in IEEE Conference Record - Abstracts. Publ by IEEE, pp. 183, 1990 IEEE International Conference on Plasma Science, Oakland, CA, USA, 5/21/90.
Ho AY, Kuo S. Interaction dynamics of hollow cathode discharge plasmas. In IEEE Conference Record - Abstracts. Publ by IEEE. 1990. p. 183
Ho, A. Y. ; Kuo, Spencer. / Interaction dynamics of hollow cathode discharge plasmas. IEEE Conference Record - Abstracts. Publ by IEEE, 1990. pp. 183
@inproceedings{f9629d3aa5a848139019de0bf15c9762,
title = "Interaction dynamics of hollow cathode discharge plasmas",
abstract = "Summary form only given, as follows. An experiment was set up for the study of arc dynamics and the interaction between two arcs. Two pairs of electrodes placed inside a bell jar having a height 30 in and a diameter of 18 in were used for electrical discharge. Argon plasma was produced in a background pressure of 1 to 10 torr through a steady-state hollow cathode discharge where the cathode was made of tantalum tubing, allowing argon gas to flow through. The separations among these electrodes were 8 in vertically and 4 in horizontally. The current of each arc was about 10 A. The diameter of each arc column varied from 2 to 4 cm for the constricted mode to a few inches for the diffused mode. The arcs are in the constricted mode when the operating current is high. Constricted arcs are more stable, except sometimes these two arcs may merge in the central region through the pinch effect. A striation along the constricted arc column was also observed frequently. It is confirmed that global modes can be generated by thermal instability in a constricted arc.",
author = "Ho, {A. Y.} and Spencer Kuo",
year = "1990",
language = "English (US)",
pages = "183",
booktitle = "IEEE Conference Record - Abstracts",
publisher = "Publ by IEEE",

}

TY - GEN

T1 - Interaction dynamics of hollow cathode discharge plasmas

AU - Ho, A. Y.

AU - Kuo, Spencer

PY - 1990

Y1 - 1990

N2 - Summary form only given, as follows. An experiment was set up for the study of arc dynamics and the interaction between two arcs. Two pairs of electrodes placed inside a bell jar having a height 30 in and a diameter of 18 in were used for electrical discharge. Argon plasma was produced in a background pressure of 1 to 10 torr through a steady-state hollow cathode discharge where the cathode was made of tantalum tubing, allowing argon gas to flow through. The separations among these electrodes were 8 in vertically and 4 in horizontally. The current of each arc was about 10 A. The diameter of each arc column varied from 2 to 4 cm for the constricted mode to a few inches for the diffused mode. The arcs are in the constricted mode when the operating current is high. Constricted arcs are more stable, except sometimes these two arcs may merge in the central region through the pinch effect. A striation along the constricted arc column was also observed frequently. It is confirmed that global modes can be generated by thermal instability in a constricted arc.

AB - Summary form only given, as follows. An experiment was set up for the study of arc dynamics and the interaction between two arcs. Two pairs of electrodes placed inside a bell jar having a height 30 in and a diameter of 18 in were used for electrical discharge. Argon plasma was produced in a background pressure of 1 to 10 torr through a steady-state hollow cathode discharge where the cathode was made of tantalum tubing, allowing argon gas to flow through. The separations among these electrodes were 8 in vertically and 4 in horizontally. The current of each arc was about 10 A. The diameter of each arc column varied from 2 to 4 cm for the constricted mode to a few inches for the diffused mode. The arcs are in the constricted mode when the operating current is high. Constricted arcs are more stable, except sometimes these two arcs may merge in the central region through the pinch effect. A striation along the constricted arc column was also observed frequently. It is confirmed that global modes can be generated by thermal instability in a constricted arc.

UR - http://www.scopus.com/inward/record.url?scp=0025665587&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025665587&partnerID=8YFLogxK

M3 - Conference contribution

SP - 183

BT - IEEE Conference Record - Abstracts

PB - Publ by IEEE

ER -