—_ 273 * ee Project 21.3 - Short Half-life Activities - F, Monyer Project 21.3 was engaged in finding total tritium in the aloud. was done in the following panner: This Carrier amounts of heavy water, inypton and xenon were added to the collection bottles prior to the progrem. The collection system consisted of filters for particulate metter and oollection vottles mounted on the sampling planes. Gas samples were collected at verious altitudes and times following the detonation and returned to Parry for seperation, Krypton, xenon, water and carbon dioxide were separated from the gas sample and molybdermu was separated from the filter sample. Erypton, xenon and molytdenum vere collected to determine fissions per collection tottle. The remaining activities, cl4 and H? vere returned to the laboratory, as barium carbonate and weter for the determination of total tritium and possibly cl yield. The fission bottle date are shown in Table 21.31. - LO o

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