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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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DC Discharge and Magnetic Field

Posted Feb 28, 2014, 2:06 p.m. EST Low-Frequency Electromagnetics, Plasma Physics Version 4.2 3 Replies

Dmitry Ratushny
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Hello!

I try to get Current-Voltage Characteristic of Inverted Magnetron Vacuum Gauge using COMSOL.

(see image here ej.iop.org/images/0963-0252/21/3/035006/Full/psst402568f02_online.jpg )

I successfully modeled a coaxial DC glow discharge, but don't understand, how add axial magnetic field.

I have read this post www.comsol.com/community/forums/plasma-module/thread/26073/ , is it really impossible to modele my system?
3 Replies Last Post Mar 3, 2014, 10:16 a.m. EST
Edgar J. Kaiser Certified Consultant
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Posted: 1 decade ago Feb 28, 2014, 2:32 p.m. EST

Dmitry,

the thread you are referring to was discussing the magnetron sputtering process. I think that is an animal different from what you have in mind.

Cheers
Edgar

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Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Dmitry, the thread you are referring to was discussing the magnetron sputtering process. I think that is an animal different from what you have in mind. Cheers Edgar -- Edgar J. Kaiser emPhys Physical Technology http://www.emphys.com
Dmitry Ratushny
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Posted: 1 decade ago Feb 28, 2014, 2:51 p.m. EST
Of course I don't interest in sputtering process, I just want to get some information about plasma in crossed Electric and Magnetic fields ( coaxial diode with axial magnetic field )

I get some Ion-Current information for coaxial diode discharge without magnetic field (attach images).
Of course I don't interest in sputtering process, I just want to get some information about plasma in crossed Electric and Magnetic fields ( coaxial diode with axial magnetic field ) I get some Ion-Current information for coaxial diode discharge without magnetic field (attach images).
Luke Gritter Certified Consultant
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Posted: 1 decade ago Mar 3, 2014, 10:16 a.m. EST
Dmitry,

As long as your plasma is sufficiently collisional, you can model this process in COMSOL. On the settings for the DC Discharge interface, activate "Compute tensor ion transport properties" and "Compute tensor electron transport properties". You can then enter the magnetic flux density in the Model Inputs section of the settings for the Plasma Model node.

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Luke Gritter
AltaSim Technologies
Dmitry, As long as your plasma is sufficiently collisional, you can model this process in COMSOL. On the settings for the DC Discharge interface, activate "Compute tensor ion transport properties" and "Compute tensor electron transport properties". You can then enter the magnetic flux density in the Model Inputs section of the settings for the Plasma Model node. -- Luke Gritter AltaSim Technologies

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