>>Included with our source data was a reference you may find usefull if you >>can find it: R. E. Tate "Pu-Be Neutron Sources, Their Fabrication and >>Yield", Proceedings of 2nd UN International Conference on Peaceful Uses of >>Atomic Energy, XIV, 427 (1958). This reference could prove VERY useful ESPECIALLY considering it is about the same age as some of our sources. How can I get a copy??