The Focus Fusion Society Forums Dense Plasma Focus (DPF) Science and Applications Linked and knotted beams of light for plasma confinement

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  • #544
    ailabs
    Participant

    Is this announcement relevant/useful to speeding up work on focus fusion?

    “A pair of researchers showed that a relatively new solution to Maxwell’s equations allows light to be twisted into stable loops. They are designing experiments to test the theory now, and it could have a big impact on fusion technology. The paper’s abstract is available at Nature, though a subscription is required to see the rest. Quoting:

    ‘In special situations, however, the loops might be stable, such as if light travels through plasma instead of through free space.’

    One of the problems that has plagued experimental nuclear fusion reactors is that the plasma at the heart of them moves faster and faster and tends to escape. That motion can be controlled with magnetic fields, but current methods to generate those fields still don’t do the job. If Irvine and Bouwmeester’s discovery could be used to generate fields that would send the plasma in closed, non-expanding loops and help contain it, ‘that would be extremely spectacular,’ Bouwmeester says.”

    Link: http://www.nature.com/nphys/journal/v4/n9/abs/nphys1056.html

    Discuss this story at: http://science.slashdot.org/comments.pl?sid=08/09/14/1324233

    #3217
    Henning
    Participant

    For non-Nature subscribers also available as PDF at:
    http://pdfmenot.com/store_local/996c794f28d65c93d38d6cb60ff50d2f.pdf
    or as Flash-Version:
    http://pdfmenot.com/view/http://pdfmenot.com/store_local/996c794f28d65c93d38d6cb60ff50d2f.pdf

    From afar the graphics look a bit like that “pinch”, albeit only calculated with a single particle.

    #3429
    Tasmodevil44
    Participant

    I’m really curious about this fascinating new discovery for potential containment. I’m curious about the types of light that can be used. Could you do this with high energy x – rays or gamma rays in that portion of the electromagnetic spectrum ? How about visible red or blue light ? Or infrared ? Interesting possibilities here.

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