Table 26. Contamination readings of Rongerik personnel after CASTLE, BRAVO (R/hr).4 0 _ dar Preshower .O01- .006- .O11.005 .010 .015 .016.025 .026.050 .051.099 Over .100 High --- 6 2 4 6 2 1 7 0.250 --- ll 9 6 2 --- --- --- 0.025 After Last Shower --- 12 . 10 5 1 --- w--- --- 0.025 After lst Shower . Mar --- 22 6 --- --- --- --- --- Q.010 > apr 27 1 w= eee --- --- --- --- 0.0005 ate: “By AN/PDR 27C survey instrument. source: Reference 68. two of the Air Force men had already returned to Kwajalein to assist in cepairing some U.S. Navy electronic equipment. During this second period at Kwajalein the group was observed by the medical personnel of the newly established Program 4. This program had been hurriedly set up after the BRAVO fallout incident to aid and observe the Marshall Islanders who were exposed on Rongelap, Ailinginae, and Utirik. riod. These Marshall Islanders also were at Kwajalein during this pe- This medical surveillance of the servicemen lasted until at least early April as information on their blood components is given in the Program 4 report until H+42 days (April 11, 1954) (Reference 65, p. 72), for skin lesions for H+47 days (Reference 65, p. 40), and for beta activity in urine for "44 days post detonation" (Reference 66, p. 17). Three men assigned to a Navy Bikini Boat Pool LCM that was working off the Belle Grove presented film badges with BRAVO readings of 85 to 95 R. These apparent high exposures were not discovered until the badges were developed 10 days after BRAVO. Thorough investigation at that time failed to reveal how these three men could have received so much radiation. 243 Some