Effective cathode voltage in a vacuum arc with a black body electrode configuration

Isak I. Beilis; Yosef Koulik; Raymond L. Boxman

doi:10.1109/TPS.2013.2260531

Effective cathode voltage in a vacuum arc with a black body electrode configuration

Isak I. Beilis, Yosef Koulik, Raymond L. Boxman

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The energy dissipated in the cathode in a vacuum arc black body assembly (VABBA) is investigated. A closed volume is formed by a water-cooled cylindrical Cu cathode and a cup-shaped W or Ta anode. Cu cathode material is emitted into the closed volume and the anode is heated by the arc. The VABBA confined and evaporated macroparticles while the plasma is extracted through small anode apertures. Arc currents are I=175 -250 A and the arc time is 150 s. The effective cathode voltage U_cef is determined calorimetrically, using a thermocouple probe. It is observed that U_cef increases with time from simrm 6.5 V for cold anodes (i.e., during conventional cathodic arcing) to a steady-state value of simrm 11.2 -12.0 V when the anode is sufficiently hot and the arc operated in the VABBA mode.

Original language	English
Article number	6523129
Pages (from-to)	1992-1995
Number of pages	4
Journal	IEEE Transactions on Plasma Science
Volume	41
Issue number	8
DOIs	https://doi.org/10.1109/TPS.2013.2260531
State	Published - 2013

Keywords

Calorimetric method
cathodic arc
effective cathode voltage
thermocouple probe
vacuum arc

Access to Document

10.1109/TPS.2013.2260531

Cite this

@article{2561664861074236a0d784c96f3786a8,

title = "Effective cathode voltage in a vacuum arc with a black body electrode configuration",

abstract = "The energy dissipated in the cathode in a vacuum arc black body assembly (VABBA) is investigated. A closed volume is formed by a water-cooled cylindrical Cu cathode and a cup-shaped W or Ta anode. Cu cathode material is emitted into the closed volume and the anode is heated by the arc. The VABBA confined and evaporated macroparticles while the plasma is extracted through small anode apertures. Arc currents are I=175 -250 A and the arc time is 150 s. The effective cathode voltage Ucef is determined calorimetrically, using a thermocouple probe. It is observed that Ucef increases with time from simrm 6.5 V for cold anodes (i.e., during conventional cathodic arcing) to a steady-state value of simrm 11.2 -12.0 V when the anode is sufficiently hot and the arc operated in the VABBA mode.",

keywords = "Calorimetric method, cathodic arc, effective cathode voltage, thermocouple probe, vacuum arc",

author = "Beilis, {Isak I.} and Yosef Koulik and Boxman, {Raymond L.}",

year = "2013",

doi = "10.1109/TPS.2013.2260531",

language = "אנגלית",

volume = "41",

pages = "1992--1995",

journal = "IEEE Transactions on Plasma Science",

issn = "0093-3813",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "8",

}

TY - JOUR

T1 - Effective cathode voltage in a vacuum arc with a black body electrode configuration

AU - Beilis, Isak I.

AU - Koulik, Yosef

AU - Boxman, Raymond L.

PY - 2013

Y1 - 2013

N2 - The energy dissipated in the cathode in a vacuum arc black body assembly (VABBA) is investigated. A closed volume is formed by a water-cooled cylindrical Cu cathode and a cup-shaped W or Ta anode. Cu cathode material is emitted into the closed volume and the anode is heated by the arc. The VABBA confined and evaporated macroparticles while the plasma is extracted through small anode apertures. Arc currents are I=175 -250 A and the arc time is 150 s. The effective cathode voltage Ucef is determined calorimetrically, using a thermocouple probe. It is observed that Ucef increases with time from simrm 6.5 V for cold anodes (i.e., during conventional cathodic arcing) to a steady-state value of simrm 11.2 -12.0 V when the anode is sufficiently hot and the arc operated in the VABBA mode.

AB - The energy dissipated in the cathode in a vacuum arc black body assembly (VABBA) is investigated. A closed volume is formed by a water-cooled cylindrical Cu cathode and a cup-shaped W or Ta anode. Cu cathode material is emitted into the closed volume and the anode is heated by the arc. The VABBA confined and evaporated macroparticles while the plasma is extracted through small anode apertures. Arc currents are I=175 -250 A and the arc time is 150 s. The effective cathode voltage Ucef is determined calorimetrically, using a thermocouple probe. It is observed that Ucef increases with time from simrm 6.5 V for cold anodes (i.e., during conventional cathodic arcing) to a steady-state value of simrm 11.2 -12.0 V when the anode is sufficiently hot and the arc operated in the VABBA mode.

KW - Calorimetric method

KW - cathodic arc

KW - effective cathode voltage

KW - thermocouple probe

KW - vacuum arc

UR - http://www.scopus.com/inward/record.url?scp=84882448976&partnerID=8YFLogxK

U2 - 10.1109/TPS.2013.2260531

DO - 10.1109/TPS.2013.2260531

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:84882448976

SN - 0093-3813

VL - 41

SP - 1992

EP - 1995

JO - IEEE Transactions on Plasma Science

JF - IEEE Transactions on Plasma Science

IS - 8

M1 - 6523129

ER -

Effective cathode voltage in a vacuum arc with a black body electrode configuration

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this