Bikini, the Eneman base camp was to be the center of operations. Parties recovering scientific data soon after the shot would operate from Navy vessels in the lagoon, until early radiological surveys determined that the atoll environment was safe enough to move data-recovery operations ashore. When shot BRAVO, the first CASTLE shot at Bikini, was detonated on 1 March, it contaminated the base facilities on Eneman Island and the preoperation plan was abandoned. To provide for personnel safety during re- covery operations, four Navy ships served as platforms for TU 7 radsafe activities (Reference 9, Annex N). These functions are indicated in Ta- ble ll. Table 11. Shipboard radsafe activities, CASTLE. Radsafe Center Radsafe Checkpoint Decontamination Station X X X Curtiss (AV-4) xX X Fred C. Ainsworth (T-AP-181) X xX Location Bairoko (CVE-115) Estes (AGC-12) X A barge moored alongside the Ainsworth provided the radsafe checkpoint and decontamination station. The task force conducted radsafe operations from these vessels for the remaining four shots at Bikini. To alleviate the crowded working space conditions, the Curtiss and the Ainsworth's radsafe barge were designated as radsafe subcenters, primarily for the use by, and control of, personnel from TG 7.1 and TG 7.5 (Reference 17, p. 14). Because the entire atoll had been contaminated to some extent, all task force personnel stationed at Bikini lived aboard ship for the remainder of the Bikini shots. No personnel left shipboard without permission. Entry and exit at contaminated areas were strictly controlled through radsafe 127