FEB 14 °S4 FROM KAMAN SCIENCES CORP 14:13 PAGE. 2/226 TO 17822958154 SVL —_ LL? O- ; Cay. 201 HEADQUARTERS . JOINT TASK FORCE SEVEN oe ee)3 58662 APO 187 (HOW), ¢/o Postmaster ~ San Francisco, California we april i984 #” MEMORANDUM FOR RECORD SUBJECT: 1. BRAVO Shot, Operation CASTLE PURPOSE: To make a matter of record operational as~ pects thatware ware considered prior to BRAVO event of Operation CASTLE and to analyze the resultant situation in light of available pre-shot and post-shot infomation. 2. GENERAL INFORMATION: Operation CASTLE is planned to cousist of a series of seven detonetions at the Pacific Froving Grounds, which encompasses Eniwetok and Bikini Atolls. BRAVO is the code name that was given the firing of the first device, SHRTMP, at 0645 M on 1 March 1954, off Namu Tsland, Bikini Atoll. © Subsequent to BRAVO detonation radioactive debris fell on certain inhabited atolls of the northern Marshall Islands. Radjation intensities rose to levels sufficient to warrant evacuation of four atolls and all personnel were removed from these atolls to Kwajalein in accordance with the operational emergency plan of JTF SEVEN. Areas evacuated and gamma dosages received gare indicated below: ATOLL POPULATION DISTANCE FROLI DOSES RECETVED GROUND ZERO Allinginas BongelLap Rongerik sirik . — 1 79 Wu 80 R (computed ) 82 100 NY 100-150 R (computed) 28 # 133 NY 154 40-98 R (film badge) 270 XM 17 R (computed) (#) @8 American Service personnel; 25 USAF Weather Detachment plus 3 USA Signal Corps personnel. ( All evacuees are under competent medical care. Be PREVIOUS EXPERIENCE AND CHARACTERISTICS OF NUCLEAR DETONATIONS: Radioactive debris i8 an inherent characteristic of ail nuclear detonations. It originates frem fission fragments CLASSIFICATION CANCELLEDOROHANGEDSO [OY S47/Z2A7/01/ 8 15 1994