Star Mode as an Emergent Phenomenon

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Liam David
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Real name: Liam David
Location: Arizona

Star Mode as an Emergent Phenomenon

Post by Liam David »

While benchmarking and validating my PIC code, I've been doing some simulations of standard spherical fusors. Here's star mode for a not-quite-symmetric cathode with relatively thick wires. Pressure is ~18 mtorr. I might look for bugle jet mode next.
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Electron density, arbitrary units
Electron density, arbitrary units
D2 fast neutral density, arbitrary units
D2 fast neutral density, arbitrary units
D2+ density, arbitrary units
D2+ density, arbitrary units
Collision density on cathode and chamber
Collision density on cathode and chamber
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Richard Hull
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Real name: Richard Hull

Re: Star Mode as an Emergent Phenomenon

Post by Richard Hull »

Great posting Liam. The volumetric collision in velocity space is the winner with target collision hot spots. I think U of W did all this work back in the early 2000's via actual experiment using some occulting disks. They even counted protons using a PIPS detector inside the chamber! We got to see all those papers back them. They did the best work for over 25 years, but are now gone.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
Retired now...Doing only what I want and not what I should...every day is a saturday.
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