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Z-Machine Developments

  1. Jun 24, 2007 #1

    Astronuc

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    Staff: Mentor

    The key may be the new system, called a linear transformer driver (LTD), created by researchers at the Institute of High Current Electronics in Tomsk, Russia, in collaboration with colleagues at Sandia.

    http://www.hcei.tsc.ru/index_en.shtml

    http://www.hcei.tsc.ru/ssi/fields/zp/index_en.shtml


    Rapid-fire pulse brings Sandia Z method closer to goal of high-yield fusion reactor
    http://www.eurekalert.org/pub_releases/2007-04/dnl-rpb042507.php

    Revolutionary circuit fires thousands of times without flaw

    http://www.physorg.com/news96730015.html

    http://www.sandia.gov/news/publications/fact/ZMachineFS05.pdf
     
  2. jcsd
  3. Jun 27, 2007 #2
    Can this method of fusion possibly reach break even?
     
  4. Jun 27, 2007 #3

    Astronuc

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    I expect that is the idea of pursuing this technology.

    The objective of any fusion reseach is to develop a useful energy source from fusion - which is well beyond breakeven. However, in all cases, the challenges have been daunting and we're not there yet.

    Apparently with the new LTD, there is considerable reduction in losses, and that is a big step in the right direction.
     
  5. Jun 27, 2007 #4

    mheslep

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    G. Miley and T.J. Dolan ran a class this past Spring at UI on fusion and the resulting course website is a good resource. This class on Z pinches is good overview.

    The claim up thread from Sandia re 'largest X-ray' producer is disconcerting w/ respect to losses. I assume thats Bremsstrahlung X-Ray losses from hot electrons; the same problem that limits the efficiency of other neutral plasma reactors.

    After Thought:
    The improvement addressed in the OP is apparently about improvements in the efficiency of the drive currents that produce the implosion; I cant get a handle on the net power prospects from the plasma once generated via a Pinch. Apparently most of the work on Pinches is about the drive system and the stability of the implosion. My question: assume those problems are solvable, then what are the governing efficiency factors for fusion power? Certainly there will still be enormous Bremsstrahlung losses?

    mheslep
     
    Last edited: Jun 27, 2007
  6. Jun 27, 2007 #5

    Astronuc

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    I know George and have interfaced with him over the years, and I used Tom's book Fusion Research. I had all three volumes, but can only find Vol 1.

    However - Huzzah! - I found it online! :tongue2: :approve: :cool:

    http://www.fusionnow.org/dolan.html

    It is dated - 25 yrs old now - but it is a good resource. It also has some errors so be careful how one uses the equations and data.
     
  7. Jun 27, 2007 #6

    mheslep

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    Understatement. Its a fusion Britannica; old or no I don't understand why its not more widely referenced - I came across it by accident. It would eliminate 95% of the FAQs for those new to the field.
     
  8. Jun 27, 2007 #7

    Astronuc

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    Yeah - I concur. l love those books! :tongue2:

    It is the best single source on the state of the art in 1982.


    In fact there is one reference on materials that refers to a report George Miley did way back when. So I called George to ask him about it, since no one else could remember what happened to the report or the data. He didn't remember either! :surprised And that was about 25 years ago. :rofl:
     
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