JET will attempt Q-record by the end of the decade

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

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Giorgio
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Re: JET will attempt Q-record by the end of the decade

Post by Giorgio »

crowberry wrote:
Thu Aug 05, 2021 12:21 pm
Is there any news out yet on the JET DT-campaign? Does anyone know if the DT-experiments have been started during this summer or has there been more delays?
According what I remember, preparation works was planned for the second half of the year with actual experimental runs in the last quarter 2021.
So it should be still early.
A society of dogmas is a dead society.

crowberry
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Re: JET will attempt Q-record by the end of the decade

Post by crowberry »

Results from the 2021 JET DT-run will be published in early 2022. It will be very interesting to hear how the JET 2021 DT-run went.

A third JET DT-run is scheduled for 2023 and after that JET will be decommissioned in 2024.

crowberry
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Re: JET will attempt Q-record by the end of the decade

Post by crowberry »

Here is an interesting quote by Professor Ian Chapman, CEO of UK Atomic Energy Authority from the article by Melanie WIndridge:
Right at the end of 2021 we completed deuterium-tritium operation on JET for the first time in a quarter of a century, so it will be fascinating to see the results from that in the next couple of months. These could be landmark results for the community.
Was 2021 A Breakthrough Year For Fusion Energy?
https://www.forbes.com/sites/melaniewin ... on-energy/

Skipjack
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Re: JET will attempt Q-record by the end of the decade

Post by Skipjack »

It might have been a good year for JET if I am interpreting this correctly:
http://www.firefusionpower.org/FPA21-9_ ... pman_r.pdf
15th PINI successfully exchanged and final
cycle of DT campaign now underway where
we are pushing for max performance


• EUROfusion and European Commission have
congratulated the whole team on the
provisional DT results so far.

Release of results to the public currently
embargoed but a number of press events
planned for early 2022
Emphasis mine...

crowberry
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Re: JET will attempt Q-record by the end of the decade

Post by crowberry »

A lot of very good things happened in fusion in 2021, but it could be that the most interesting news are still to be published? We have not yet seen the Helion Energy 2021 results and the JET 2021 DT-results are also not yet published ...

Skipjack
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Re: JET will attempt Q-record by the end of the decade

Post by Skipjack »

Yeah, they will get published some time this year, probably

crowberry
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Re: JET will attempt Q-record by the end of the decade

Post by crowberry »

Maybe we will hear about the results in February this year?

The history of JET:
... 2022: 100,000th pulse completed, with new scientific results to be released in February
Tony Donné, Programme Manager (CEO) of EUROfusion, said:
“The recent deuterium-tritium campaign has resulted in highly interesting scientific data that will help to optimise the operation and research plan of the international ITER experiment. In close discussion with ITER we are preparing for further experiments to be carried out in the coming years.”
https://ccfe.ukaea.uk/watch-iconic-fusi ... 0th-pulse/

Skipjack
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Re: JET will attempt Q-record by the end of the decade

Post by Skipjack »

Saw that one and was just about to post it!
We will see what those results really are. Fingers crossed that they broke their old record, but from what I have heard, the most recent upgrades were more in support of ITER than for breaking records. But who knows?

crowberry
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Re: JET will attempt Q-record by the end of the decade

Post by crowberry »

This article has a date for the releasing of the JET DT 2021 results. We will see if the there is something published on that day.
The Europeans plan to present new results of a JET experiment on February 9.
https://table.media/china/en/feature/ho ... ar-fusion/

mvanwink5
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Re: JET will attempt Q-record by the end of the decade

Post by mvanwink5 »

Pretending not to know of the progress being made by other fusion projects seems to be easy for journalists.
Counting the days to commercial fusion. It is not that long now.

Giorgio
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Joined: Wed Oct 07, 2009 6:15 pm
Location: China, Italy

Re: JET will attempt Q-record by the end of the decade

Post by Giorgio »

mvanwink5 wrote:
Tue Feb 01, 2022 3:04 am
Pretending not to know of the progress being made by other fusion projects seems to be easy for journalists.
In truth, having spoken to several "journalists" about fusion and science in general, I have to say that practically all of them have have no clue of what is going on in the research world and the few who have some understanding have a very limited knowledge.
I guess it's because nowadays journalists just need to write something everyday to fulfill their quota and no one has anymore time (or willingness) to make some deep research or to become specialized in an area or a specific subject.
A society of dogmas is a dead society.

crowberry
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Joined: Sun Sep 08, 2013 6:34 am

Re: JET will attempt Q-record by the end of the decade

Post by crowberry »

It will be interesting to hear about the JET DT-results:
Exciting times! This Wednesday 9 February at 13h CET European researchers from the EUROfusion consortium announce first results from their landmark #fusionenergy☀️experiments at the JET tokamak. Follow the livestream here:
https://www.youtube.com/watch?v=H99hvPlC4is
From: https://twitter.com/FusionInCloseUp/sta ... 4599579654

Skipjack
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Re: JET will attempt Q-record by the end of the decade

Post by Skipjack »

Q of 0.33 for 5 seconds. Matches what I heard before that it would be able to achieve. They had downgraded the heating because of the ITER experiments and such and that made. So no new peak power record. Just a lower Q for a bit longer.
https://www.nature.com/articles/d41586- ... 1644409150

crowberry
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Re: JET will attempt Q-record by the end of the decade

Post by crowberry »

Todays results were impressive because they were able to overcome the difficulties introduced by the ITER like metal wall and work around them with a device designed already in the 1970s. Being a device with copper magnets JET can only run for about 5 s a time. In 1997 the long pulse achievement was 22 MJ and last year the corresponding best shot was 59 MJ. The heating power available is very different between these two results so they cannot really be directly compared. But plasma wall interactions will be a problem faced by any fusion device running at high power, so there are important lessons to be learned here.

The plasma properties and plasma wall interaction as a function on the fuel mass are also important results that were reported. And these results give more insight to the properties of a burning plasma which is also important.

Hopefully the Brexit related funding problems can be overcome with an agreement between the UK and the Eurofusion consortium so that the remaining JET experimental programme can be carried out including the third DT run in 2023 so that the maximum physics potential of JET can be exploited.

Daniel Clery has a short article in Science about these results with a video of plasma in JET: https://www.science.org/content/article ... ned-energy.

crowberry
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Re: JET will attempt Q-record by the end of the decade

Post by crowberry »

The record shot fusion output of 59 MJ is the largest amount of fusion energy output from any device in a single pulse. Averaging 59 MJ over 7 s gives about 8,4 MW of fusion power, which is a significant amount of power. Hopefully we will see this level of performance being surpassed in the not too far future.

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