NASA Technical Note [NASA TN D-5012]: Reactivity changes of a fast reactor core due to elastic-plastic strain and creep

Washington NASA 1969 . 36p , Bound together NASA TN D-5011 to 5020 | Bound vol. Acc. No. 101131 contains Acc. No. TR8236 to TR8244

A design study of a regeneratively cooled nozzle for a tungsten water-moderated nuclear rocket system [NASA-TN-D-3771]

By Puthoff, Richard L.. Washington, D. C. NASA 1966 . 32p