LIST OF ILLUSTRATIONS Figure Frontispiece: 38 PP Enewetak Atoll, 1954, 39 W Bikini Atoll, 1954. 40 FP Aerial view of Parry during CASTLE. 43 MO Typical metal buildings used at Enewetak during CASTLE. 44 nD Tents on Parry during CASTLE. 44 ny Assembly area on southern tip of Parry looking south. 46 oa Enewetak airfield looking west. 46 Eneman camp, Bikini, looking south-southwest. 4a © Enewetak detonation sites. 30 Ff Organization chart, Joint Task Force 7. 34 Organization and functions of the task force Radsafe Office. mH Ankr eR WwW pe pS Op The Central Pacific. MY 1 CASTLE, BRAVO thermonuclear detonation, 1 March 1954. 17 Radsafe organization for Task Group 7.1. 81 Task Group 7.2 radsafe organization. 84 Organization and responsibilities for Task Group 7.4. 86 Pacific Proving Ground search areas and security zones for Qperation CASTLE. _doint Task Force 7 weather element organization. 109 113 18 "Booties" worn for radiation protection during radiation survey on Rongelap after BRAVO. 129 19 20 Three types of protective suits used during CASTLE. 130 Protective clothing being worn during CASTLE instrument recovery on Adrikan Island. 130 21 Wilson 1 sector search mission for cloud tracking. 133 22 23 24 25 Wilson 2 sector and vector search for cloud tracking. 133 F-84G sampler aircraft. 135 F-84G sampling panel. 138 F-84G samplers parked at Enewetak airstrip. 139 17