General Fusion in the news

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

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Skipjack
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General Fusion in the news

Postby Skipjack » Thu May 23, 2013 8:21 pm

From our friend Brian on Next Big Future:
http://nextbigfuture.com/2013/05/genera ... k-for.html

DeltaV
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Re: General Fusion in the news

Postby DeltaV » Fri May 24, 2013 12:04 am

"spinning molten lead and lithium"

That should make high-g turns dicey... still, I wish them success.

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Re: General Fusion in the news

Postby mvanwink5 » Fri Sep 13, 2013 11:30 pm

We seem to see large variability in public information on fusion project status. Tri-Alpha seems to run a news black out philosophy, General Fusion gives us really good insight into their progress, "General Fusion on Track for Demonstration of Net Gain Equivalent Plasma Compression this year" , and we get Polywell updates by gnoming around and parsing obscure Navy budget reports.

I wonder if the General Fusion engine can be turned on its side and still be able to coordinate microsecond strike time for 200 pistons plus sustain vortex symmetry adequately for fusion yield? Polywell does seem to have a major scaling advantage over the competition.
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

mvanwink5
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Re: General Fusion in the news

Postby mvanwink5 » Sat Sep 14, 2013 12:09 am

Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

crowberry
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Re: General Fusion in the news

Postby crowberry » Sat Sep 14, 2013 10:51 am


mvanwink5
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Re: General Fusion in the news

Postby mvanwink5 » Sat Sep 14, 2013 12:09 pm

crowberry, re: "There is information sharing within the physics community and within the general public. Tri Alpha Energy does seem to report currently to the physics community quite openly on their activities."
Thanks for those links. Any idea if there is status insight in the scientific papers to glean progress, milestones, and chance of success? For Polywell, there was that Phd thesis a year ago that gave a glimpse into what was being done at EMC2 in the area of plasma diagnostics. That was interesting. There is that presentation that talks about the number of alpha's produced by the fusion mode Tri-Alpha is pursuing, but that is 2012 news. If, when EMC2 pursues B-11, that should be of use. Are you saying that there are blogs that follow these fusion projects? If so, do you have any links? Thanks.
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

Skipjack
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Re: General Fusion in the news

Postby Skipjack » Sat Sep 14, 2013 4:20 pm

Michel Binderbauer (I guess he is German or maybe even a fellow Austrian with that name) from Tri Alpha also released a paper a year or so ago, regarding their approach to stabilizing the plasma with neutral beam injection.

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Re: General Fusion in the news

Postby crowberry » Sun Sep 15, 2013 9:02 pm


mvanwink5
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Re: General Fusion in the news

Postby mvanwink5 » Sun Sep 15, 2013 9:30 pm

Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

crowberry
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Re: General Fusion in the news

Postby crowberry » Fri Sep 20, 2013 8:39 am

General Fusion will attend the upcoming conference Future of Nuclear 2013 and there is a post about them on the webpage which contains an animation about the General Fusion device.
http://futureofnuclear.com/michael-dela ... lear-2013/
The agenda of the conference looks pretty interesting
http://futureofnuclear.com/conference-agenda/

crowberry
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Re: General Fusion in the news

Postby crowberry » Fri Sep 20, 2013 11:46 am

I found two talks from General Fusion, one from 2012 and one from 2011 from the webpage of Fusion Power Associates
http://fire.pppl.gov/fpa_annual_meet.html

Update on Progress at General Fusion – Doug Richardson, GF
http://fire.pppl.gov/FPA12_Richardson_GF.pdf

Research Program at General Fusion – Michael Laberge, General Fusion
http://fire.pppl.gov/fpa11_laberge_GF.pdf

The next FPA meeting will be on December 10-11, 2013 but there is no agenda page for that meeting yet.

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Re: General Fusion in the news

Postby mattman » Fri Sep 20, 2013 4:26 pm

Guys,

In all this talk you might have missed this: Wisconsin is starting Polywell research.

http://meetings.aps.org/Meeting/DPP13/Event/200547

Jeffrey Kollasch is the lead on this, he is a graduate student under Dr. Carl Sovinec. Dr. John Santarius is probably also on his committee.

Title: "Vlasov-Poisson calculations of electron confinement times in Polywell(TM) devices using a steady-state particle-in-cell method"

Abstract: Collisionless electron confinement times in polyhedral magnetic cusp configurations are investigated numerically with a particle-in-cell technique designed for steady-state conditions of the Vlasov-Poisson system. This method is based on iteratively solving particle trajectories in the time-independent electrostatic field produced by trajectories from a previous iteration. A new code based on this technique, SSUBPIC (steady-state unstructured-boundary particle-in-cell), is presented. It is found to converge rapidly for the cases investigated. The implementation is verified on computations of space-charge limited current in 1D and 2D configurations. Here, it is applied to study the effects of an ejecting virtual cathode potential well on a single electron species injected by guns into a Polywell(TM). Adverse effects of non-magnetically shielded structural members on confinement time are also calculated.

This was funded through the National Defense Science and Engineering Graduate Fellowship. Which means somewhere there is an application where they laid out their research plan. I hope they publish a paper.

paperburn1
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Re: General Fusion in the news

Postby paperburn1 » Fri Sep 20, 2013 5:08 pm

I thought they already published but it was behind a paywall

here is something you might like
I am not a nuclear physicist, but play one on the internet.

mattman
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Re: General Fusion in the news

Postby mattman » Fri Sep 20, 2013 5:29 pm

Anyone have a link to a paper here?

Normally, they present, and the paper comes after.

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Re: General Fusion in the news

Postby mvanwink5 » Tue Oct 01, 2013 10:13 am

Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.


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