Dynomak In The News and Polywell Too

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

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MSimon
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Dynomak In The News and Polywell Too

Postby MSimon » Sat Oct 11, 2014 4:21 am


mvanwink5
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Re: Dynomak In The News and Polywell Too

Postby mvanwink5 » Sat Oct 11, 2014 1:07 pm

Has anyone asked Sutherland about 1st wall yet? Clearly that detail has been vetted in their penciled economics or else the pencilled economics had a shredded last page...

It is only a matter of time for EMC2 to have backing for their first risk reducing project step, surely? Let's hope it is not like the $1.5M table scraps thrown on the floor for Helion by Mithril Capital and YCombinator... On the other hand, it may be that that is all that would be required to shred the last WB-D doubt and trigger serious cash and heat up the Dark Horse fusion race?

Stay tuned, I am sure we will find out what didn't happened bit by....xx years... bit.

edit:
After further story of Helion chasing, it looks like the $1.5M to Helion is part of a risk management funding roadmap with series B staged for late mid 2015 assuming testing milestones met along the way.
Last edited by mvanwink5 on Sat Oct 11, 2014 3:21 pm, edited 2 times in total.
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

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Re: Dynomak In The News and Polywell Too

Postby birchoff » Sat Oct 11, 2014 3:09 pm


mvanwink5
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Re: Dynomak In The News and Polywell Too

Postby mvanwink5 » Sat Oct 11, 2014 3:26 pm

There is some bizarre surface erosion that also takes place, then there is tritium breeding using lithium. 1st wall is a major design issue from what i have read. It is a Tokamak bete noire.
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

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Re: Dynomak In The News and Polywell Too

Postby D Tibbets » Sat Oct 11, 2014 3:35 pm

Neutron embrittlement?

It depends on the design and fuel. Certainly D-T and to a lesser extent D-D fuel will produce lots of neutrons, but what happens to them is important. In a Tokamak, or General fusion or any other scheme that plans to use D-T fuel the first wall has to be a neutron absorbing- tritium producing substance- generally liquid lithium that is continuously recycled with tritium extraction. The neutron enbrittlement issue is trivial in this situation (compared to the lithium blanket issues). In D-D reactors the enbrittlement issue is real and has to be addressed. If you use D-He3 or especially P-B11 fuel the neutron issues are much to tremendously less of a concern.

Dan Tibbets
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TheRadicalModerate
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Re: Dynomak In The News and Polywell Too

Postby TheRadicalModerate » Tue Oct 14, 2014 11:37 pm

As usual, I'm confused.

The abstract says this is a spheromak. Have these guys made a genuinely stable spheromak? How? And wouldn't that make General Fusion pretty much a slam-dunk?

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Re: Dynomak In The News and Polywell Too

Postby Skipjack » Wed Oct 15, 2014 4:08 pm


birchoff
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Re: Dynomak In The News and Polywell Too

Postby birchoff » Wed Oct 15, 2014 10:03 pm


mvanwink5
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Re: Dynomak In The News and Polywell Too

Postby mvanwink5 » Wed Oct 15, 2014 10:31 pm

Thanks birchoff, and especially thanks to Dr. Sutherland for answering the first wall question.

It would be nice to see adequate support for all the non-consensus fusion projects. Fusion news is coming out of the woodworks, but I guess that is to be expected once the competition for funds hits high C.
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.


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