I wrote: Only after this first step is the energy debt paid back in a second step > involving the exothermic neutron capture reaction (which would be > accompanied by deexcitation gammas). >
Note that there's two sources of gammas. There's the gamma that is released during the reaction (Robin's point) and the gammas that follow afterwards (the deexcitation gammas). n + 59Ni => gamma + 60Ni + 11388 keV n + 61Ni => gamma + 62Ni + 10596 keV n + 58Ni => gamma + 59Ni + 8999 keV n + 60Ni => gamma + 61Ni + 7820 keV n + 62Ni => gamma + 63Ni + 6838 keV n + 64Ni => gamma + 65Ni + 6098 keV Those gammas will carry nearly the full energy and there will be very little recoil in the nickel nucleus. So that's a strong flux of ~ 10 MeV gammas. Eric
