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New record for fusion

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posted on May, 22 2017 @ 05:11 PM
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a reply to: D8Tee

Antigravity?
FTL travel?
It's all facets, if one facet becomes known, the rest follows.
I subscribe (in part) to the electric universe theory. Everything is electrical, everything is vibration, just like Tesla said.

And most of that has been proven already, but i'm always open to new ideas, i like to put them in context with what is known. I mean known as in what is possible, verified etc and not what the general public think they know.

Anything is possible, it just needs an explanation, is a good starting point.




posted on Jun, 15 2017 @ 01:48 PM
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I have found several articles at Ars Technica about nuclear fusion actually explained by nuclear physicists that are worth sharing.

First up, Wendelstein 7-X and very well written account of the difference between a tokomak and a stellarators.

(with the horrible title) June 9, 2017 - Wibbly-wobbly Magnetic Fusion Stuff: the Return of the Stellarator.

Some older articles explaining confinement schemes.

Reverse Field Pinch explained (2009): Smaller reactor design for fusion may work in a “pinch”

Polywell confinement (2015): Magnetic mirror holds promise for fusion.

The last two together are the schemes used by Lockheed in their compact fusion reactor. LM uses the best of both schemes in their design. There is a good explanation of the following concept...


The reason I mention this is that one can differentiate between the natural pressure of the plasma and the pressure applied by a magnetic field. The ratio of these two, called beta, is an important parameter in fusion reactors. Essentially, the efficiency of fusion goes up rapidly as beta approaches one, so magnetic compression aims to get beta as close to that level as possible.

(Ars Technica, Magnetic Mirror...)

Lockheed said their design could get a beta of 1... or more!



posted on Jun, 20 2017 @ 12:38 PM
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An article up at Power Technology about lithium's use in a tokamak. PPPL researchers went to China's EAST reactor last December. They had previously demonstrated the liquid lithium limiter as a first-wall. This time though they added a powdered lithium injector. With both running, they were able to demonstrate the powdered lithium could be shot into turbulent plasmas to smooth them out! The article seems written by a non-English speaker then translated because it is start-stop so the above description is what I got out of it. Oh, there are advert overlays on the article too! So IE users beware!

Armed with this data I bet the Princeton guys plug this all back into their computer controls and simulations. Yet one more step to controlling a plasma and extracting the heat!

PowerTechnology.com, June 19, 2017 - Researchers find lithium effective in nuclear fusion,
edit on 20-6-2017 by TEOTWAWKIAIFF because: split infinitives



posted on Jul, 2 2017 @ 05:50 PM
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a reply to: TEOTWAWKIAIFF

Interesting stuff, and we thought Lithium was only good for batteries! They are not easy to handle, i have had to design 3 different charging systems for the b*ggers.

Good work dude, i thought that the original stellarator was a kind of figure 8 shaped plasma device and the man operating it looked a lot like Eric Laithwaite, but that could just be an Alzheimer moment LOL


I really thought that the torus-shaped field would be our final answer, because that would give us a rotating mag field as you would need for a UFO (flux liner) type of drive.

But magnetic fields tend to be spirals, so why not try a spiral of plasma?

This was an idea i had decades ago involving a transformer but then with a (fusing) turn (or turns) of a high density plasma carrying impossible amounts of current. Like 2,000 amps per turn of current density.
It seems someone else got there first, i gather the first experiments took place in the late 50's and may be a result of Tesla's lost papers.

Neumann interpreted this somewhat differently and discovered that the materials used and the density thereof made a big difference. The more copper the better, this seems to be born out in the Flux-Liner design, somewhat.

I would like to say more on this subject but i am held by an oath to keep the final details secret, until such time as no other options exist.

Keep the info going



posted on Jul, 2 2017 @ 08:44 PM
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a reply to: playswithmachines

Literally none of the things you claim have been proven in any way.



posted on Jul, 6 2017 @ 02:01 PM
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Recent experiments on the Lithium Tokamak Experiment (LTX), the first facility to fully surround plasma with liquid lithium, showed that lithium coatings can produce temperatures that stay constant all the way from the hot central core of the plasma to the normally cool outer edge. The findings confirmed predictions that high edge temperatures and constant or nearly constant temperature profiles would result from the ability of lithium to keep stray plasma particles from kicking—or recycling—cold gas from the walls of a tokamak back into the edge of the plasma.


Researchers performed this set of experiments with solid lithium, Boyle explained, but a coating of liquid lithium could produce similar results. Physicists have long used both forms of lithium to coat the walls of LTX. Since flowing liquid lithium could absorb hot particles but wouldn't wear down or crack when struck by them, it also would reduce damage to tokamak walls - another critical challenge for fusion.

phys.org, July 5, 2017 - Researchers demonstrate first hot plasma edge in a fusion facility.

An experiment in the US with at least a decent article!

Liquid lithium limiters (liquid lithium first-wall) cuts down on embrittlement but more importantly--creates a constant temperature from the inner plasma out to the edge! That cuts down on turbulence and all the monitoring needed to prevent those conditions from occurring. This is major news!

You can also breed tritium from lithium which cuts down on the cost of buying your fuel. Just go get your graphene filter and cut your deuterium creation time down.

Let's see. Computer controls... check. Liquid lithium limiter... check. Heating capability... check (neutral beam injectors). Diverter... check. All we need is an increase in magnetic pressure and demonstration of sufficient containment time!

@pwm - One of these days will we see what you are up to?? Sounds interesting!



posted on Jul, 7 2017 @ 06:26 PM
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China's Experimental Advanced Superconducting Tokamak (EAST) made an important advance by achieving a stable 101.2-second steady-state high confinement plasma, setting a world record in long-pulse H-mode operation on the night of July 3rd.
...

All the plasma parameters, including recycling, and particle and heat fluxes, reached a truly steady state after 20 seconds—the wall saturation time for the W divertor—and remained stable until the end of the discharge.

phys.org, July 6, 2017 - China's 'artificial sun' sets world record with 100 second steady-state high performance plasma.

I saw this at Next Big Future but it was a google translation from Chinese. They ran this in "H-mode" or "high confinement" which is the plasma being under pressure (instead of just pulsing a low density pulse and then trapping it). The peak heat was 50 million K (or 15 million °C) which is better than their 60-second run. The big complaint of the EAST reactor news is that their temperatures were not high enough.

Compared to the 6 second plasma discharge in the W7-X reactor that is a massive improvement! EAST still does not have the heat but they are showing it can be done. The reactor is China's contribution to ITER and other plasma research (they tested PPPL's liquid lithium limiter there last year). Finding out that it 20 seconds to calm down is nice to know! Great achievement in the quest for a working nuclear fusion reactor!

Meanwhile the US is doing?? Oh yeah, NTSX-U had that accident and they shut it down for a year.

ETA: TheRegister.co.uk article with temps

edit on 7-7-2017 by TEOTWAWKIAIFF because: grammar guerilla

edit on 7-7-2017 by TEOTWAWKIAIFF because: add link



posted on Jul, 12 2017 @ 06:04 PM
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a reply to: TEOTWAWKIAIFF

Now that is cool (or rather not)

I bet they produce that pressure with a masive coil, i.e. a high mag field density.

It is then possible to make a filament, very thin but a million degrees in the middle.And more easily controlled than the usual torus, which as y'all know suffers from so-called 'kink instability'...

This then fuses, expands, and as a result, pruduces an EMF force on the coil.
See how easy it actually is? I have positive yet unconfirmed reports that this is Tesla technology, i will know more when i get back from vacation and start sorting a few TB of data, oh yes, quantum tunneling, that's part of it too...
I hope i get time to catch up on all the links provided,
This is fun!



posted on Jul, 12 2017 @ 06:16 PM
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a reply to: playswithmachines

Enjoy your vacation!

We all need to unplug every now and then! It has taken 60 years to get to 100 seconds so a few more days (on average) will not be "break-through" or anything. I'll be here, posting links, news, and updates (making lame jokes, getting stuff wrong... the typical!)




posted on Jul, 14 2017 @ 06:48 PM
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The stellarator Wendelstein 7-X has received its first divertor. Just one step closer towards realising plasma pulse lengths of half an hour without breaking the machine
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The higher heat handling capabilities of the divertor allows us to make longer pulses with higher energy input”, says Arturo Alonso, W7-X‘s task force leader. A divertor takes the energy that is split out from the main plasma. It diverts waste particles directly into the trash with the help of magnetic field lines. For the first operational period of Wendelstein 7-X (from 10th December 2015 to 10th March 2016) a limiter had to do the job of the actual divertor, but its performance was quite “limited”.


Now that the divertor is in place and the wall elements made of copper-chromium-zirconium have been covered by graphite tiles, researchers expect extended pulse lengths of about one minute, as the permitted energy input per discharge moves from 4 Megajoule up to 80 Megajoule, a 20 fold increase in terms of renergy input!

euro-fusion.org, July 12, 2017 - Finally, a divertor! – Wendelstein powers up.

The target date is the end of August to get everything up and running (and cooling). They now have the ability to divert particles and any impurities out through the divertor. They had a scoop up called a limiter doing that function. None of the walls were covered so thy could only get so hot of a plasma for so long before they had to end the shot. The main goal of the first phase was to get the magnetic fields measured and tested.

Next up? Get the plasma under control for up to a minute. They cannot go much longer because they are using passive cooling at the moment. Active cooling is coming and they are shooting for having that up and running in 2020*.

*All the info in the previous two paragraphs are spread throughout the article which is kind of short which limits how much I can post without posting the whole thing.

Nice to see the divertor put in!



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