Yes, apparently safe (although using UZrH not UH3). What I was questioning is whether the hydrogen desorbtion at high temperature really does control the reaction by changing the neutron moderation rate, or whether something else is happening (which equally controls reaction rate).
It is not that uncommon for devices to operate succesfully, even though they were originally designed using a completly bogus theory, since the hands-on "fine tuning" often compensates for the initial mistake. Hence a wrong theory can be perpetuated for a long time. Note that the "Ruth" bomb had a very low yeild, which was not consistent with Teller's working theory. Hence the theory should be open to question (as all theories should be, every now and then). - Leo ________________________________ From: Axil Axil <janap...@gmail.com> The triga reactor uses this hydrogen moderation method and it is very safe. http://en.wikipedia.org/wiki/TRIGA