DISTANCE FROM BURST POINT (statute miles) 150 100 a —— AREA OF HEAVY FALLOUT Lo of BIKINI ~ a oweuas 50 0 50 4 150 100 200 250 DISTANCE FROM BURST POINT (statute mites) Figure 90. CASTLE, YANKEE heavy fallout area. The aré a within the contour would have been a full y adex area 24 hours after the shot had the fallou t been over dry land (after Reference 81). R/hr (and increasing) were noted. procedures. The LSTs carried out decontami nation At 1700, readings averaged 0.020 R/hr (0.040 R/hr m with the highest readings on wind-exposed surfaces. at 2000 was 13°16'N, 177°97'R. imum) » The ships' sition ensity A steady decrease in radiation i was noted after 2330, and decontamination continued throughout th night. B LST-762 reported a maximum of 0.040 R/hr; LST-975, 0.096 R/hr. 0800 on 7 May (position 14°30'n, 178°40'E), intensities had dropped to an average of 0.005 R/hr and a maximum of 0.015 R/hr. At 0700 on 8 May at sition 15°5'N, 178°44'E, LST-762 indicated an average of 0.003 R/hr and No individual exposures are available for this incident. [It * of 0.008 R/hr: LST-975 reported 0.007 and 0.010 R/hr, respectivel maximum s not Clear whether the cumulative exposures reported for the crew of L T-762 and reported in Reference 13 included this radiation, or whether he ship's film badges had been given to TU 7 for processing before tHe ship departed Enewetak. 309