Can someone explain this 0.39 MeV (Cost?)

Discussion in 'Physics & Math' started by sunshaker, Jun 20, 2016.

  1. sunshaker Registered Member

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  3. sweetpea Valued Senior Member

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    0.39 megaelectronvolt =6.248 × 10-14 joule.

    I think it's how much energy is lost in a particular part of a process or interaction. I'm probably wrong.
     
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  5. James R Just this guy, you know? Staff Member

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    Presumably it is an amount of energy that needs to be provided to get the listed process to occur.
     
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  7. rpenner Fully Wired Valued Senior Member

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    There's no physics here, just (bad) accounting. It's not nuclei which are the hard-to-control element, but the free neutrons. There is assumed a 0.39 MeV cost of liberating each free neutron. (These are presumed into existence from some sort of interaction between hydrogen and "surface plasmon heavy electrons" which is without physics.) Nowhere are cross sections of these reactions or the danger of high free neutron densities or (plausible) mechanisms to capture the energy of the gamma rays discussed and since they assume up to six consecutive neutron-nucleus interactions occurring the free neutron densities or time scales must be insane.
     
    Last edited: Jun 21, 2016
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