calculations are detailed for the USS CURTISS, a typical ship. The deck log of the CURTISS (AV-4) indicates that this ship entered Bikini Lagoon fifteen times during Operation CASTLE, remaining in the lagoon for various periods (see Section 2.2.6). When the ship remained in the lagoon for 24 hours or more, it is assumed the hull reached the saturation level with the intensity below deck given by: L(t) = 240 pbe3 (9) where 240 is the product of Fo and S. Upon leaving the lagoon, it is assumed that the intensity was immediately reduced by a factor of two. If the ship had not reached saturation, i.e., it remained in the lagoon for less than 24 hours, the intensity after departing the lagoon is one-half the intensity it reached during the linear one-day buildup period. Figure 2-2 depicts the below deck intensity for the CURTISS through 31 May, resulting from hull contamination. The integrated intensities are detailed for each period in and out of the lagoon (see Section 2.2.6). The maximum below deck intensity measurement following Shot BRAVO was obtained in the engineering spaces in the vicinity of a contaminated auxiliary condenser on the CURTISS and was 2 mR/hour (48 mR/day). Shown in Figure 2-2, it is consistent with the observation in Reference 6 that, in general, engineering spaces in the vicinity of contaminated piping and salt water systems would have intensities approximately 1.5 times the average below deck intensity. (Although the actual date of the measurement is not known, it is assumed that it corresponded to the time of first hull saturation following Shot BRAVO.) Similar ship contamination curves are derived for each ship that entered Bikini Lagoon during Operation CASTLE. These curves are time-integrated to yield a daily free-field integrated intensity below through 31 May 1954. Integrated intensities topside and below are detailed in the following sections for each ship that received fallout and/or entered the contaminated waters of Bikini Lagoon. 32