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posted by Snow on Tuesday December 06 2016, @11:03PM   Printer-friendly
from the pocket-full-of-sunshine dept.

At the end of last year, Germany switched on a new type of massive nuclear fusion reactor for the first time, and it was successfully able to contain a scorching hot blob of helium plasma.

But since then, there's been a big question - is the device working the way it's supposed to? That's pretty crucial when you're talking about a machine that could potentially maintain controlled nuclear fusion reactions one day, and thankfully, the answer is yes.

A team of researchers from the US and Germany have now confirmed that the Wendelstein 7-X (W 7-X) stellerator is producing the super-strong, twisty, 3D magnetic fields that its design predicted, with "unprecedented accuracy". The researchers found an error rate less than one in 100,000.


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  • (Score: 3, Informative) by lcklspckl on Tuesday December 06 2016, @11:22PM

    by lcklspckl (830) on Tuesday December 06 2016, @11:22PM (#438116)

    From TFA:

    Despite the fact that the machine successfully controlled helium plasma in December last year, and then the more challenging hydrogen plasma in February, no one had shown that the magnetic field was actually working as it should be.

    This experiment was to see that the magnetic fields were constructed correctly. It already works apparently for containing plasma. They just wanted to see if they were doing/did it right.

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  • (Score: 5, Funny) by bob_super on Tuesday December 06 2016, @11:25PM

    by bob_super (1357) on Tuesday December 06 2016, @11:25PM (#438118)

    Wait, they want to check their containment before setting off a fusion reaction... What's the fun in that?

    • (Score: 5, Informative) by ikanreed on Tuesday December 06 2016, @11:40PM

      by ikanreed (3164) Subscriber Badge on Tuesday December 06 2016, @11:40PM (#438127) Journal

      Sadly, life isn't like sci-fi, and "containment" doesn't mean "preventing a nuclear explosion" but is instead a requisite state for the plasma to be in before fusion is even possible.

      H-Bombs essentially use a small fission explosion as containment for the tritium-deuterium reaction that fuels the big boom.

      It turns out to be really really really hard to keep particles with the same charge in close proximity.

      • (Score: 4, Informative) by bob_super on Tuesday December 06 2016, @11:47PM

        by bob_super (1357) on Tuesday December 06 2016, @11:47PM (#438130)

        Not just in proximity of each other, but far away from walls, windings and people which wouldn't be very happy to meet them up close, even if there aren't too many of them for now.

        I like calling the fission igniter explosion a "containment". A 100t hydraulic press is also a container, I guess.

        • (Score: 0) by Anonymous Coward on Wednesday December 07 2016, @02:41AM

          by Anonymous Coward on Wednesday December 07 2016, @02:41AM (#438176)

          "Containment" (in this context) refers to its relationship to the object being contained.

          A press is only a container if it is containing something in that might come out...

          I nuclear fission reactor that fails to contain plasma is just a giant, incredible expensive metal donut...

    • (Score: 2) by edIII on Wednesday December 07 2016, @03:13AM

      by edIII (791) on Wednesday December 07 2016, @03:13AM (#438188)

      IIRC, I think the fun is when you turn off the containment grid. BOOM!

      --
      Technically, lunchtime is at any moment. It's just a wave function.
      • (Score: 2) by Some call me Tim on Wednesday December 07 2016, @04:20AM

        by Some call me Tim (5819) on Wednesday December 07 2016, @04:20AM (#438209)

        That's when you call Ghost Busters!

        --
        Questioning science is how you do science!
        • (Score: 4, Funny) by Bogsnoticus on Wednesday December 07 2016, @05:54AM

          by Bogsnoticus (3982) on Wednesday December 07 2016, @05:54AM (#438222)

          But if Chris answers the phone, hang up. Who wants the "B" team?

          --
          Genius by birth. Evil by choice.
          • (Score: 4, Funny) by Webweasel on Wednesday December 07 2016, @11:56AM

            by Webweasel (567) on Wednesday December 07 2016, @11:56AM (#438290) Homepage Journal

            The A Team were cancelled in 1987

            --
            Priyom.org Number stations, Russian Military radio. "You are a bad, bad man. Do you have any other virtues?"-Runaway1956
        • (Score: 2) by Thexalon on Wednesday December 07 2016, @04:50PM

          by Thexalon (636) on Wednesday December 07 2016, @04:50PM (#438415)

          Alternately, they should think about contacting Dr Otto Octavius for assistance.

          --
          The only thing that stops a bad guy with a compiler is a good guy with a compiler.