----Original Message----- From: Bob Cook Ni-62 and Ni64 are not a big constituents of natural Ni--Ni-58 is the largest at about 68.3%. However, they both provide about 4.5% of the natural Ni isotopes. Both Ni-62 and Ni-64 would transmute to stable Cu -63 and Cu-65 upon absorption of a proton. There may be no gammas emitted. On the other hand transmutation of Ni-58 to Cu-59 would likely involve gammas (maybe as high as 1.3 Mev associated with Cu-59 decay to Ni-59 which itself is radioactive with no direct gamma emission, only positron emission with its subsequent annililation with an electron producing the .51 Mev back to back gammas.
Bob, In general you are asking too much of spin coupling to participate in proton addition reactions. There is an energy gap of at least 6 orders of magnitude. And in the end you still cannot account for copper ash which should be extremely radioactive but is not. Far better IMHO to look mass->energy conversion somewhere else.
