On Tue, Sep 9, 2014 at 6:14 PM, Bob Cook <[email protected]> wrote:
I wonder if the new Cu is Cu-63? Rossi may be implying that Ni-62 goes to > Cu-63, both of which are stable isotopes. Spin coupling to get rid of the > 6.22Mev of excess mass may be the answer--there are no gammas apparently. > In a 62Ni(d,p)63Ni reaction, the 63Ni will beta- decay to 63Cu. The proton will have ~ 5 MeV and will excite 11 keV electrons, which can easily be shielded. There will be a delayed gamma emission after the beta- decay of Q=87 keV, however, which will not be fully shielded even by 1cm of lead. If there is vigorous deuteron stripping, there will be a lot of motivation to remove 62Ni from the nickel. Eric
