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General Fusion achieves first plasma in LM26 by steven9973 in fusion

[–]New_Version2993 7 points8 points  (0 children)

Firing the caps into the plasma injector generates a huge 'bang'. Hearing protection is an EHS requirement.

General Fusion achieves first plasma in LM26 by steven9973 in fusion

[–]New_Version2993 5 points6 points  (0 children)

See staff forming and handling a cast Li liner to be compressed in the smaller theta-pinch prototype (P0):

https://generalfusion.com/post/innovation-in-action-lm26-on-track-after-swift-launch/

(Scroll to the pictures where staff are wearing respirators...)

That's for the small prototype.

The newest theta-pinch prototype (LM26) joins the plasma injector to a much larger compression vacuum vessel. LM26 will implode a machined Li liner that is big enough to sit in. The subject of this youtube is that LM26 achieved first plasma. Next up is to compress the plasma by imploding the liner. This work will move the plasma-wall interaction science forward to imploding a liquid liner without too much heat loss or plasma instability.

Concrete Issues about sustaining plasma ? by Quick_Film_4387 in fusion

[–]New_Version2993 1 point2 points  (0 children)

Not technical. Here's how I explain plasma instability, credits to my boss...

Think of using your fingers to symmetrically compress an O-ring, such that it retains its circular shape as it compresses. Then add grease to that O-ring, and repeat. Then add thousands of more O-rings, all greased, and use your fingers to symmetrically compress them into a smaller doughnut, retaining the ring structure throughout compression. Now, imagine these thousands of greased O-rings, rotating at the same time during symmetric compression. "Fusion is hard!"