FF3/7 23/32 Mf J15-9 intensity in the engineering space.where this condenser was located was only about 2 milliroentgens per hour, As more shots are fired it is possible that higher salt water system intensities will be recorded, but at the present time it js considered that such will not prevent Task Group 7,3 from rendering the necessary support to the Scientific Task Group, although it my result in the requirement that ships remain at sea a considerable portion of the time. 7e As a result of the radicactive fallout on nearly all ships, the necessary decontamination measures following, and the radiation received by helicopter and boat pool personnel.in support of the Scientific Task Group, a large proportion of the personnel of Task Group 7.3 have been exposed to radiation in varying degrees. Enclosure (3) is a nearly complete and reasonably accurate tabulation of accumulated radiological exposures of personnel of Task Group 7.3 by ships and units, (Reason- able estimates have been made in many cases since it has not been possible to provide all personnel with film badges; more information is gradually being mde available as the over-worked laboratory personnel and facilities develop additional. film badges.) It will be noted that the following approximate numbers and per- sontagesof Task Group 7.3 personnel have received dosages to date in the ranges indicated: , Exposure in Roent gens - Approx percentage of TG 7.3 personnel with with exposure exposure 3936. no... - 6909 19.5 0,12 Too 6 ~ 6.999 ‘ . . 3 7 . 2.6 1.5 0.5 UA 83 27.7. 3 = 3.999 k= 4.999 5 - 5.999 Over 7.8 ‘ Approx, number TG 7.3 personnel : O- .999 1 - 1.999 . ‘ 0,05 . _| The film badges of three (3) men of an LCM crew (those listed in the “over 7.8" column in Enclosure (3)) indicated a dosage of approximately 90R* Thorough ... investigation has failed to reveal how these three men could have received this _ much radiation; however, they have been transferred to Naval Station, Kwajalein for observation, and treatment if found necessary, by Atomic Medicine Specialists, Personnel of the PHILIP and BAIROKO have received greater exposures, in general, than other personnel. For this reason, it is planned that for all future shots of this operation, PHILIP ,411 be employed at a location other than near the shot atoll, This will not be practicable in the case of BIIROKO, but steps will be taken to station BiIROKO, insofar as possible, in locations where the probability of receiving additional significant fallout is reduced,