Eric, You may be correct, but using data from Wikipedia's "Isotopes of nickel" page at URL -- http://en.wikipedia.org/wiki/Isotopes_of_nickel the only naturally occuring stable isotopes of nickel are:
58Ni, 60Ni, 61Ni, 62Ni, 64Ni The only neutron captures that can occur with measurable probability in lab time frame are: 58Ni + n --> 59Ni (59Ni half life = 76,000 years) 59Ni + n --> 60Ni 60Ni + n --> 61Ni 61Ni + n --> 62Ni 62Ni + n --> 63Ni (63Ni half life = 100 years) 63Ni + n --> 64Ni Only 59Ni decays via beta+, but very rarely. Captures after 64Ni result in beta- decays and result in Cu isotopes. Do you suggest that the neutron captures result in gammas, or perhaps that further downstream Cu decays do? or that isomeric decays are responsible for gammas? Thanks, Lou Pagnucco Eric Walker wrote: > On Mon, Jul 16, 2012 at 10:31 PM, <[email protected]> wrote: > > That patent #7,983,414 should be #7,893,414. >> > > I see. It's easy to accidentally mis-transcribe a large number like that. > > However, do any Ni + neutron --> Cu decays produce gammas? >> > > There appear to be a number of Ni(n,g)Ni gamma decays. I'm not sure how > strong the gammas are. After this there would be the beta decay, I think. > > Eric >
