This is why Rossi uses nickel enriched in Ni62 and Ni64 because these isotopes of nickel are the richest in excess neutrons within their nuclei.
On Thu, Jan 19, 2012 at 9:45 PM, <mix...@bigpond.com> wrote: > In reply to Axil Axil's message of Thu, 19 Jan 2012 02:43:26 -0500: > Hi, > [snip] > >By the way, fusion of protons with transuranic elements is very unlikely. > >But if somehow a proton(s) got inside a super heavy nucleus, fission of > the > >new transmuted element would almost certainly happen instantaneously. > > > > > >Such a fission reaction would be 20 time more energetic per incident > >(~200MeV) compared to the formation of copper from nickel (~10 MeV). > > If 2 or more protons are involved, it might also usually be a clean > reaction > that produces few if any radioisotopes. This is because the protons tend to > compensate for the fact that heavy elements are neutron rich. > > Regards, > > Robin van Spaandonk > > http://rvanspaa.freehostia.com/project.html > >
