Good news for ITER/Tokamak supporters

Point out news stories, on the net or in mainstream media, related to polywell fusion.

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Skipjack
Posts: 6898
Joined: Sun Sep 28, 2008 2:29 pm

Good news for ITER/Tokamak supporters

Post by Skipjack »

http://www.sciencedaily.com/releases/20 ... 103327.htm

I am still skeptical, but these predictions are at least something positive after months of nothing but negative news on the Tokamak side of things.

chrismb
Posts: 3161
Joined: Sat Dec 13, 2008 6:00 pm

Post by chrismb »

Difficult to interpret that without some clarity on what they're talking about. Reporters get all manner of things into their heads! The idea that 'self-generated' currents can aid stability is a difficult one to swallow.

Nik
Posts: 181
Joined: Thu Mar 12, 2009 8:14 pm
Location: UK

Weirdness...

Post by Nik »

I suppose solar flares and lightning are extreme examples of self-focussing 'current channels', but I'd only be guessing...

I remember reading years ago ( Scientific American, not Popular Mechanics ;-) about some work that *might* have lain tangential to the 'StarWars' project. It was to do with pulsed energy transfer, at levels above those possible with 'physical' bus-bars. You're talking ST-ish 'plasma conduits'. Presumably the energy would be used to pump an ICBM-poppin' laser or such, but this project was 'civilian', studying the 'switch gear'.

IIRC, they found the power stream would spread a dozen ways due as many mechanisms-- Until they hit a power threshold. After which, the plasma would self-organise and settle down...

That was a dozen-plus years ago, and I've no reference. It was certainly a 'linear' configuration, rather than the toroidal tokomak. They were not trying for fusion, they were just trying to transfer power...

jmc
Posts: 427
Joined: Fri Aug 31, 2007 9:16 am
Location: Ireland

Post by jmc »

The bootstrap current is a real phenomenon and is generated by pressure gradients in the plasma. There are lots of papers written on Bootstrap current, I believe the first people to theorise its existence were Howard Wilson and Jack O Connor.

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