Homepage Forums Aneutronic Fusion Diagnostics

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  • #1596
    AvatarFrankOlson
    Member

    With most fusion reaction involving deutrium, the evidence of neutrons suggests fusion reactions taking place. With aneutronic fusion (er, <2%), how will it be definitively determined that fusion reactions are taking place if it can't be based solely on neutrons formed? Temperature needed for the reaction to take place? Alpha particles? Extrapolations on the amount of neutrons formed? Which diagnostic tool carries the most weight, or is it going to be more of a series of tools that proves without doubt that these reaction are occurring?

    #13335
    Avatarvansig
    Member

    you still get a trace amount of neutrons, due to side reactions

    #13338
    AvatarFrankOlson
    Member

    Yes, true. I found a list. Some of the side reactions I found were

    p+B11->C12+gamma
    p+B11->n+C11
    He4+B11->n+N14
    He4+B11->p+C14
    He4+B11->T+C12
    B11+B11->Junk
    and Possible B10 impurities

    From: Scott Stephens on 18 January 1998
    http://home.earthlink.net/~jimlux/nuc/reactions.htm

    But, the goal is bountiful p+B11->3 He4 + 8.7 Mev reactions. How are these going to be measured? How will it be known that they are happening?

    #13342
    AvatarIvy Matt
    Participant

    LPP has instruments to detect neutrons, X-rays, and the current from the ion beam. I imagine the measurement of current from the ion beam (using a set of Rogowski coils) will be the all-important measurement. For more on LPP’s instruments (at least as of 2011), see here: https://focusfusion.org/index.php/site/category/C72

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