In reply to Horace Heffner's message of Mon, 21 Mar 2011 11:31:30 -0800: Hi, [snip] >If the neutron absorbers can burn, decompose or rubblize at lower >temperatures than the fuel rod assemblies, then even they probably >will not prevent criticality in the volumes in which they exist. If >there are volumes where they do not exist then it is essential to >fill those volumes with a solid which will prevent critical mass, >either by preserving the geometry or by absorbing neutrons.
..don't forget the earthquake. There is no guarantee that things are where they were put. Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/Project.html
