| ° | an wa 406 Project 23.3 and 23.4 - Time Interval and Time and Pressure Measurements EH. B. Keller GRTECTIVES There vere three di s nt experinents conducted by Diagnostic Photography on ofaoe device. Radiation flow transit tine measurements by means of hot-spots, measurement of interstage tise and fireball growth by the Christmas tree experiment, and a flucr experiment to evaluate the reaction of fluores subjected to very high gamma and neutron fluxes. Pre-operational calculations shoved the following estimates: . atacs Tiald - ho Explosion