In reply to Peter Gluck's message of Tue, 12 Apr 2011 18:26:41 +0300: Hi, [snip] >And enrichment is very expensive & difficult.
...and so unnecessary. If the reactions to stable copper are preferred (by the reaction mechanism itself) above other reactions, then Ni62 & Ni64 will automatically be selected from natural Ni anyway, leaving the rest behind. Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/Project.html