Simulating Plasma Pumping

I have a unique use case for Molflow and am looking for guidance on the best approach.

I am modeling a simple mirror fusion device and want to capture all the sources and sinks of particles in the system. One important sink/source is neutral particles that are scattered back into the plasma region, which have a chance to be ionized and transported out either end of the central region along the magnetic field.

I know molflow is not intended to model plasma interactions, but I want to see if there is some rough approximation I could make to capture this effect. I originally considered using teleports to automatically transport any particle that hit the plasma to the facets at each end, but it seems this is not a good use of the teleport feature.

I am asking for any suggestions on how best to model this phenomenon using the capabilities built into molflow. I’ve included an image of my geometry with the plasma region and the end facets highlighted. The idea is that any particles that cross the plasma region have some probability of being transported to the end facets. Thank you.

Hello Joey,

I think a teleport facet would indeed work, and the transport probability would be the facet’s opacity.

What didn’t go as expected when you tried the teleports?

Cheers, Marton

From what I read, I got the impression teleports were only meant to be used for periodic boundaries. But, if you say that is an appropriate solution then I will definitely try it.

Is there any way to track teleports so I confirm if they are working as intended?

Thanks, Joey

Yes, when you turn on “Lines” display in the top right, teleports are visualized as dotted orange lines, from source to destination.

Info: Teleports - MolFlow / SynRad documentation