In reply to Jones Beene's message of Mon, 7 Dec 2009 14:32:56 -0800: Hi, [snip] >your underlying assumptions - then one of them could be this. Al-Najjar et >al. (1986) reported that the threshold energy of the neutron required to >fission a carbon atom (three alpha) is 9.6 MeV. The authors apparently >agree, and cite this reference several times. [snip] I wonder how that is derived? The actual energy required to fission C12 is only 7.3 MeV.
Perhaps it was measured, and the number of fissions below 9.6 MeV was so small as to go undetected? Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/Project.html
