Lockheed Martin 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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Re: Lockheed Martin news

Postby Skipjack » Thu Mar 16, 2017 3:54 am

D Tibbets wrote:5 milliseconds or more may be very significant, or not. For a Polywell operating at a density of 10^22 /M^3 it is impressive. But, I don't know at what density the Tri Alpha current efforts are working at. It is that old triple product consideration. Low Beta Tokamaks may manage 100s of seconds, but because of the lower density, the triple product is still a challenging goal.

I understand reverse field configurations may reach densities similar to Polywell goals, but I don't know how this relates to their current research, nor how confident they are of scaling projections for either density or temperature .9the other two legs of the triple product).

Dan Tibbets

From what I understand, TAE are confident in being able to achieve the densities they need. What they are working on next is achieving the temperatures they need.
I had a chance to briefly interact with Sam Cohen about PPL's Direct Fusion Drive last year and from what I understood, their current reactor achieves (or should achieve that was not 100% clear), 50 ms pulse lengths at densities of 10^13 cm^-3 and 1 keV temperatures. It is my understanding that the 300 ms pulse(s) that Stephany Thomas mentioned at NIAC was indeed at a reduced density. Reactor requirements would be 3 million ms pulse length, 30 keV temperature and and 50 times the density.

mvanwink5
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Re: Lockheed Martin news

Postby mvanwink5 » Tue May 02, 2017 12:10 pm

NBF has article out today on LM which covers the late 2016LM poster
http://www.nextbigfuture.com/2017/05/lo ... gfuture%29

LM poster for reference
http://fusion4freedom.us/pdfs/McGuireAPS.pdf
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

mvanwink5
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Re: Lockheed Martin news

Postby mvanwink5 » Tue May 02, 2017 1:36 pm

Here is the 2015 Princeton presentation which I think is worth viewing. I don't think I have seen this one before this. For instance McGuire comments that superconductor performance in these machines is better due to increased pinning sites from neutron radiation. Also, it seems to me that LM at this stage is unfamiliar with EMC2's proof of Grad's conjecture, so recirculation is an issue they are solving using mirror coils. So, I wonder if doing away with those coils simplifies their design and puts them back to a Polywell? If not, Polywell will beat their britches off.

http://www.pppl.gov/events/colloquium-l ... on-reactor
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

mvanwink5
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Re: Lockheed Martin news

Postby mvanwink5 » Tue May 02, 2017 1:56 pm

The white paper linked to above:
http://fusion4freedom.us/pdfs/LManalysis.pdf

fails to understand what EMC2 proved, Grad's conjecture works, so it does not grasp what 'inflation' for start up means. LM has stalks which is an engineering issue and Polywell eliminates. LM's project still seems to still be in process based on the 2016 poster and they have money. With all their magnets, why not make a 100% cusp Polywell machine? An issue with patents? Obstinance?
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

choff
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Re: Lockheed Martin news

Postby choff » Wed May 03, 2017 1:40 am

Maybe EMC2 patent prevents them from taking advantage of Polywell research.
CHoff

paperburn1
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Re: Lockheed Martin news

Postby paperburn1 » Wed May 03, 2017 5:23 am

It would be hard for them to claim virgin engineering as they helped Bussard.
I am not a nuclear physicist, but play one on the internet.

D Tibbets
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Re: Lockheed Martin news

Postby D Tibbets » Fri May 05, 2017 12:20 am

What EMC 2 patent? The original is well over 20 years old and a newer application (in 2008?) was rejected.

Dan Tibbets
To error is human... and I'm very human.

crowberry
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Re: Lockheed Martin news

Postby crowberry » Fri May 05, 2017 8:58 am

D Tibbets wrote:What EMC 2 patent? The original is well over 20 years old and a newer application (in 2008?) was rejected.

Dan Tibbets


EMC2 has a patent application from December 2015, see this post http://www.talk-polywell.org/bb/viewtopic.php?f=10&t=6072&start=90#p123726.

paperburn1
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Re: Lockheed Martin news

Postby paperburn1 » Thu Jun 15, 2017 3:44 pm

Found this
https://www.nextbigfuture.com/2017/05/l ... plans.html
this was updated jan 2017
http://fusion4freedom.us/pdfs/McGuireAPS.pdf
If this is old news let me know and I will remove it.
I am not a nuclear physicist, but play one on the internet.

crowberry
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Re: Lockheed Martin news

Postby crowberry » Thu Oct 05, 2017 3:15 pm

LM has also several contributions at the 59th Annual Meeting of the APS Division of Plasma Physics conference:
Abstract: BP11.00097 : Initial operation of the Lockheed Martin T4B experiment

http://meetings.aps.org/Meeting/DPP17/Session/BP11.97

Abstract: JO4.00001 : Overview of the Lockheed Martin Compact Fusion Reactor (CFR) Project.

http://meetings.aps.org/Meeting/DPP17/Session/JO4.1

mvanwink5
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Re: Lockheed Martin news

Postby mvanwink5 » Mon Oct 09, 2017 9:10 pm

Once again thanks to crowberry.
https://arpa-e.energy.gov/sites/default ... CGUIRE.pdf

I am becoming a believer in LM approach and team.
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.


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