emaren ge aE —, ~ 1 Caen I 5 ae RS“Wed Figure 36. Scrubbing to remove radioactivity before suit remo¥al, CASTLE. Ainsworth provided the most effective solution for controlling ghipboard contamination. r Naval Vessel Decontamination BRAVO created a mass naval decontamination operation, since [this event contaminated ships before the washdown systems were turned on. anchored in the lagoon required decontamination, and a vigorous of top surfaces by means of firehoses was initiated shortly after ceased (Figure 37). [All vessels Washdown fallout This action removed about 80 percent of thej contami- nation, except for the wooden flight deck of the Bairoko. Despife the Cleanup efforts, contamination from BRAVO caused background levels aboard ship and on the islands of Bikini to exceed established permissible contamination levels; therefore, emergency personnel levels and equipment release levels were increased to 0.015 R/hr Small boats (LCMs and LCTs) (Reference 16, p. 57). that were left in the Eneu anchofgage be- came heavily contaminated, requiring strong hosing with water ang ture of boiler compound and lye. a mix- These caustics were normally uged to 149