Diffusion of Cathodic Arc Plasma in a Magnetic Filter

Tao Zhang; Paul K. Chu; Ian G. Brown

doi:10.1109/PLASMA.2003.1229977

Diffusion of Cathodic Arc Plasma in a Magnetic Filter

Tao Zhang, Paul K. Chu^*, Ian G. Brown

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 22 - Publication in policy or professional journal

Abstract

A model based on Bohm diffusion is developed to investigate the optimal bias of a magnetic filter used in conjunction with a cathodic arc plasma source. Details regarding the derivation of the model as well as experimental results to corroborate the model are presented. According to the model, the optimal bias at which the magnetic duct produces the maximum plasma output is related to the ion speed, ion mass, ion charge state, and plasma density in the filter. Even though the magnetic field is taken into account, it is not a variable in the final equation. Our experimental results confirm that the magnetic field has almost no influence on the optimal bias when the magnetic field is above 400G. The presented work enhances our understanding on the mechanism of plasma transport through the magnetic duct.

Original language	English
Journal	IEEE International Conference on Plasma Science
DOIs	https://doi.org/10.1109/PLASMA.2003.1229977
Publication status	Published - 2003
Event	2003 IEEE International Conference on Plasma Science - Jeju, Korea, Republic of Duration: 2 Jun 2003 → 5 Jun 2003

Access Output

10.1109/PLASMA.2003.1229977

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{cf80a90b63414a7b9af7677750148a8e,

title = "Diffusion of Cathodic Arc Plasma in a Magnetic Filter",

abstract = "A model based on Bohm diffusion is developed to investigate the optimal bias of a magnetic filter used in conjunction with a cathodic arc plasma source. Details regarding the derivation of the model as well as experimental results to corroborate the model are presented. According to the model, the optimal bias at which the magnetic duct produces the maximum plasma output is related to the ion speed, ion mass, ion charge state, and plasma density in the filter. Even though the magnetic field is taken into account, it is not a variable in the final equation. Our experimental results confirm that the magnetic field has almost no influence on the optimal bias when the magnetic field is above 400G. The presented work enhances our understanding on the mechanism of plasma transport through the magnetic duct.",

author = "Tao Zhang and Chu, {Paul K.} and Brown, {Ian G.}",

year = "2003",

doi = "10.1109/PLASMA.2003.1229977",

language = "English",

journal = "IEEE International Conference on Plasma Science",

issn = "0730-9244",

publisher = "IEEE",

note = "2003 IEEE International Conference on Plasma Science ; Conference date: 02-06-2003 Through 05-06-2003",

}

TY - JOUR

T1 - Diffusion of Cathodic Arc Plasma in a Magnetic Filter

AU - Zhang, Tao

AU - Chu, Paul K.

AU - Brown, Ian G.

PY - 2003

Y1 - 2003

N2 - A model based on Bohm diffusion is developed to investigate the optimal bias of a magnetic filter used in conjunction with a cathodic arc plasma source. Details regarding the derivation of the model as well as experimental results to corroborate the model are presented. According to the model, the optimal bias at which the magnetic duct produces the maximum plasma output is related to the ion speed, ion mass, ion charge state, and plasma density in the filter. Even though the magnetic field is taken into account, it is not a variable in the final equation. Our experimental results confirm that the magnetic field has almost no influence on the optimal bias when the magnetic field is above 400G. The presented work enhances our understanding on the mechanism of plasma transport through the magnetic duct.

AB - A model based on Bohm diffusion is developed to investigate the optimal bias of a magnetic filter used in conjunction with a cathodic arc plasma source. Details regarding the derivation of the model as well as experimental results to corroborate the model are presented. According to the model, the optimal bias at which the magnetic duct produces the maximum plasma output is related to the ion speed, ion mass, ion charge state, and plasma density in the filter. Even though the magnetic field is taken into account, it is not a variable in the final equation. Our experimental results confirm that the magnetic field has almost no influence on the optimal bias when the magnetic field is above 400G. The presented work enhances our understanding on the mechanism of plasma transport through the magnetic duct.

UR - http://www.scopus.com/inward/record.url?scp=0141927824&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0141927824&origin=recordpage

U2 - 10.1109/PLASMA.2003.1229977

DO - 10.1109/PLASMA.2003.1229977

M3 - RGC 22 - Publication in policy or professional journal

SN - 0730-9244

JO - IEEE International Conference on Plasma Science

JF - IEEE International Conference on Plasma Science

T2 - 2003 IEEE International Conference on Plasma Science

Y2 - 2 June 2003 through 5 June 2003

ER -

Diffusion of Cathodic Arc Plasma in a Magnetic Filter

Abstract

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this