a ‘ ¥. ~% Fig. 6.4-3 and Fig. 6.h-l show some representative dose rate and cunulative dose_values respectively. Data on the cumulative dose rate has not yet been reduced beyond that time shown since evaluation of washdown ig most important during the period H+12 hours. The reversal in relative magnitudes of dose rate fore and aft on the two ships again seems to be present. Possible differences in washdowm effectiveness on different areas of the ships may be indicated. Shielding Studies Adequate data were obtained from this test but the calculations and evaluation of results will be done at USNRDL because of lack of personnel and time at the test site. . ‘* Radiological Survey and Photopraphy ~ A complete initial survey was performed on YAG 39. Because of high dose rates only 75% of the weather surface survey points were covered on YAG LO, although the interior survey was complete. Plied for both ship and aircraft decontamination. Survey supvort was supSurveys included gamma field, surface beta, directional gamma measurements, and wipe samples, The camera station operated successfully but preliminary examination of the film showed no evidence of gross fallout. Ship Decontamination No experimental decontamination was verformed. Operational methods of decontamination were used to bring the radiation levels on the ships down *o values which will allow for a return to home port without subjecting the Ships! personnel to excessive radiation dosage. YAG 39 was decontaminated first and was then used as a base of Operation for the decontamination of YAG 0. The average level on YAG 39