4-P! GAMMA IONIZATION CHAMBER DECAY MEASUREMENTS OF FALLOUT SAMPLES FROM OPERATION CASTLE Research and Development Technical Report USNRDL-TR-147 NS ¢88-001 | . I 13 January 1950 | by \ W.H. Shipman J,R. Lai Chemistry General] » ae Technical Objective AW-?7 Analytical and Standards Branch PLE.” Zigman, Head Chemical Technclogy Division E.R. Tompk:ns, Head Scientific Director P.C. Tompkirs , Commanding Officer and Director . Captain Richard S, Mandelkorn, USN U.S. NAVAL RADIOLOGICAL DEFENSE LABORATORY San Francisco 24, California UNCLASSIFIED