COMSOL simulation of a FUSOR?

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COMSOL simulation of a FUSOR?

Postby Werner Engel » Tue Sep 12, 2017 8:38 pm

Hi!

Has anyone tried to simulate the moving/colliding ions inside a fusor using COMSOL?

BR,
Werner

PS: Please also have a look at the Invitation to the "European Fusor Meeting" http://www.fusor.net/board/viewtopic.php?f=47&t=11622
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Re: COMSOL simulation of a FUSOR?

Postby Scott Moroch » Sun Sep 17, 2017 7:06 pm

Werner,

Several weeks ago I did simulations of ion motion in a fusor using Simion. I have been meaning to write a post on it but have been too busy with school. I have attached some pictures of the simulations. In each of these I launched ions in a circular distribution around the grid.

The left side of the picture shows the grid orientation, and the right shows the ion motion.

Scott Moroch
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Re: COMSOL simulation of a FUSOR?

Postby ian_krase » Sun Sep 17, 2017 10:36 pm

Did you just buy SIMION,. Or did you have it from work or school?
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Re: COMSOL simulation of a FUSOR?

Postby Scott Moroch » Mon Sep 18, 2017 2:11 am

I am an undergrad at the University of Maryland and do research in the Radiation and Accelerator Facilities. I was given a copy of Simion for the research projects I am working on.

It is unfortunate that an indefinite license of Simion is around $800-$900.

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Re: COMSOL simulation of a FUSOR?

Postby Richard Hull » Mon Sep 18, 2017 4:09 am

Great stuff! As I do not have Simmon, what was the origin point of the ions? Can I assume the shell? Of course, this is the ideal in a fusor. Too bad the ions are born all over the volume in the common fusor with the vast majority never undergoing full acceleration, circulating in many smaller orbits.

Still, very interesting plots. Thanks for sharing.

Richard Hull
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Re: COMSOL simulation of a FUSOR?

Postby Dan Knapp » Mon Sep 18, 2017 10:40 am

There is at least one ion optics software package, IBS, available free from sourceforge, http://ibsimu.sourceforge.net. I have never used it, but it might be worth looking into for someone who wants to do modeling and does not have access to SIMION.
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