In reply to Horace Heffner's message of Sun, 27 Feb 2011 20:39:30 -0900: Hi, [snip] >I believe there was a statement by Rossi that there was no residual >radiation, so this should rule out 59Ni in the leftovers.
The radiation from 59Ni may be difficult to detect, as most of the time it decays via EC directly to the ground state (no gamma), with the neutrino taking the energy. (See http://atom.kaeri.re.kr/cgi-bin/decay?Ni-59%20EC). The very small amount of positron decay would be mostly stopped by the lead shielding, and if the initial reaction of 58Ni were rare anyway, then it might be lost in the background. Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/Project.html
