What are the characteristics of the next LPPX fuel, D+14N?

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  • February 21, 2011 at 8:11 pm #1093
    MTd2
    Participant

    H+15N is mostly aneutronic, but what about D+N14? Is it aneutronic too? What are its decay branches? What is the cross section for the reaction in KeV?

    February 21, 2011 at 9:08 pm #9709
    DerekShannon
    Participant

    The nitrogen is not expected to participate in fusion reactions–It is there to increase the average Z of the gas.

    February 21, 2011 at 9:18 pm #9710
    MTd2
    Participant

    Why isn’t it expected?

    February 22, 2011 at 1:14 am #9711
    MTd2
    Participant

    I checked some data, and it seems that the cross section for 14N + D -> 14C + n + p peaks at about 1 barn around 300KeV and 700KeV. This is more than 5 times at both intervals, although there is a valey that dips at 5*10^-2 barns around 500KeV. So, I don’t see why nitrogen would not react.

    February 22, 2011 at 2:30 am #9712
    MTd2
    Participant

    Oops. It seems I ploted the neutron + 14N -> 14C + P. Sorry! The ones with Deuterium are really small in the interval until some MeV. So, yes, Derek is right. Sorry.

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    March 3, 2011 at 7:17 am #9738
    DerekShannon
    Participant

    There will be some mention of the potential D + nitrogen signal in the February wrap-up–Stay tuned!

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