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by Skipjack
Wed Oct 16, 2019 3:20 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 102
Views: 45016

Re: Z-Pinch Renaissance

Pardon the platitude but I think we need t dance with the girl we brought to the dance. He3 is not available or a ready source available. IMHO we should strive for PB11 or D-D Well, if you can do D+D, then you can make He3 as a fusion product. That is what Helion is doing with their reactor. First ...
by Skipjack
Wed Oct 16, 2019 11:56 am
Forum: News
Topic: Z-Pinch Renaissance
Replies: 102
Views: 45016

Re: Z-Pinch Renaissance

Third-generation fusion fuels 3He + 3He → 4He+ 2 11 p 12.86 MeV 0 https://en.wikipedia.org/wiki/Helium-3 What about this reaction mixture? I remember hearing about it but it isn't talked about much. You could get the He3 from the decay of Tritium bred from Lithium as has been discussed, or from the...
by Skipjack
Tue Oct 15, 2019 9:17 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 102
Views: 45016

Re: Z-Pinch Renaissance

Just noticed that GG made a mistake in his calculations. He assumed a neutron yield per second. I am pretty sure that they are talking about a neutron yield per shot. One of their shots lasts a few nanoseconds...
by Skipjack
Tue Oct 15, 2019 3:30 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 102
Views: 45016

Re: Z-Pinch Renaissance

Giorgio wrote:Indeed, but they don't seem to care about the differences there, they tend to generalize all the issues too much for my taste.

.

I agree. Well, we will see if they put on a different tune in a few years from now.
by Skipjack
Tue Oct 15, 2019 1:48 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 102
Views: 45016

Re: Z-Pinch Renaissance

Looks like ZAP is hiring, some of the jobs mention their next generation (scientific break even) device: https://careers.aps.org/jobs/?keywords=employer:%22Zap%20Energy%20Inc%2E%22 I have seen your exchange of messages at NBF. I plaud your efforts to actually explain them what the ZAP Z-pinch is tr...
by Skipjack
Sun Oct 13, 2019 12:47 am
Forum: News
Topic: Z-Pinch Renaissance
Replies: 102
Views: 45016

Re: Z-Pinch Renaissance

Looks like ZAP is hiring, some of the jobs mention their next generation (scientific break even) device:
https://careers.aps.org/jobs/?keywords= ... 0Inc%2E%22
by Skipjack
Sun Oct 13, 2019 12:07 am
Forum: News
Topic: Spherical Tokamaks
Replies: 21
Views: 12516

Re: Spherical Tokamaks

Wasn't there another ST startup in the UK? I haven't heard of another one. There's FIrst Light Fusion but they're trying inertial confinement. Yeah, I know the FLF guys. Not sure how valid their idea is, but I think it is good that people pursue and invest in other approaches. And I just remembered...
by Skipjack
Sat Oct 12, 2019 10:08 pm
Forum: News
Topic: Spherical Tokamaks
Replies: 21
Views: 12516

Re: Spherical Tokamaks

It seems like companies like TE like this effort. It leaves a lot of room for private 3rd party contributors. I believe that TE would be a good candidate for that. Wasn't there another ST startup in the UK?
by Skipjack
Sat Oct 12, 2019 6:28 pm
Forum: News
Topic: Small Tri Alpha news blurp
Replies: 192
Views: 108134

Re: Small Tri Alpha news blurp

TAE will have a lot of presentations at the APS meeting later this month. This one stood out to me: http://meetings.aps.org/Meeting/DPP19/Session/UP10.123 In C-2W, record breaking, advanced beam-driven FRC plasmas dominated by fast particles (total Te+Ti up to 3 keV, based on a pressure balance) are...
by Skipjack
Sat Oct 12, 2019 5:28 pm
Forum: News
Topic: That Salvatore Pais again... Fusion Reactor Patent
Replies: 6
Views: 501

Re: That Salvatore Pais again... Fusion Reactor Patent

pbelter wrote:Nice find! I really wonder if there is any substance behind those patents

Allegedly, the Navy has been pushing them through, even though at least some of them were rejected in the initial patent application. That said, I have my doubts about them.
by Skipjack
Thu Oct 10, 2019 6:57 pm
Forum: News
Topic: That Salvatore Pais again... Fusion Reactor Patent
Replies: 6
Views: 501

That Salvatore Pais again... Fusion Reactor Patent

That's the same Navy- guy who had those other recent Navy- patents (high temperature super conductors and anti gravity thingy) published recently. Looks like a fusor with rotating(?) grid of sorts... Not sure this is any good, but with the lack of news lately... https://patents.google.com/patent/US2...
by Skipjack
Fri Oct 04, 2019 7:02 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 102
Views: 45016

Re: Z-Pinch Renaissance

Uri assumes D+He3 as the idea fuel for a SFS- Z- Pinch rocket engine. The Q and T/W are higher than with an engine using PB11 (which they also examined). You are totally right, indeed the pB11 has theoretical worst characteristics as a fuel, but is also the fuel that has been less investigated so f...
by Skipjack
Fri Oct 04, 2019 5:05 am
Forum: News
Topic: Z-Pinch Renaissance
Replies: 102
Views: 45016

Re: Z-Pinch Renaissance

This seems relevant related news:
Congrats to Professor Uri Shumlak for becoming an APS Fellow!
https://www.aa.washington.edu/news/arti ... ety-fellow
by Skipjack
Thu Oct 03, 2019 9:57 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 102
Views: 45016

Re: Z-Pinch Renaissance

Another thing to consider is that by my most conservative estimate, the total engine mass for the D+He3 Z-Pinch engine would be about 20 tonnes. But probably a lot less. Most of that is power supplies and support systems. The actual reactor core mass is relatively minor. One could double or triple u...
by Skipjack
Thu Oct 03, 2019 9:40 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 102
Views: 45016

Re: Z-Pinch Renaissance

I am concerned mainly by the ability to dissipate heat load as the frequency of the pulses increases. If by any chance you get to talk to them again you might drop the question of what is their expected shooting rate for the commercial reactor and the rocket engine variant. Yes, I do understand the...

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