00320 and were sent to Rongerik on 25 February by the TG 7.4 Techn Lcal Advisor (Reference 30). Four of these badges apparently were actu lly worn by four of the twenty-five men from the 6th Weather Squadron Two others were placed on exposed positions on the island. One (b&dge 00315) was placed "between barracks," presumably between the block "1" and "2" on the sketch map (Figure 63), and recorded 82 R. here. marked The second badge in an exposed location was 00314, which was placed on a tent pole 7 feet (2.1 meters) above the floor of the "Project 6.6 tent" and 98 R. The six remaining badges were stored in a refrigerator ecorded (prequmably the "reefers," on the map of Figure 63), and all recorded 37.5 to 59.5 R (Reference 65). An assignment of exposure to personnel was made by the TG 7.4 4 echnical Advisor and was recorded by the NCO in charge of dosimetry and decontamination in the TG 7.4 Nuclear Applications Section. This assig ent has been filed along with the 5x8 cards on which Reference 13 is bez sed and can be found in the microfilm file (Reference 87). Unfortunately, in this assignment of exposure, two errors were ade that in turn have been picked up in Reference 13. The first error as that 15 of the 25 Air Force personnel established as being on Rong ik were not assigned an exposure. of an The second error was the assignmen exposure to a surname not otherwise established as belonging to an man known to have been on Rongerik at the time. rname, The person with this not accompanied by given name, rank, or serial number, or other id tifi- cation, was recorded in Reference 13 as having received 40 R. ssess- ment of the other men's exposures is straightforward. The The three Ar y men of the 9710th TSU were assigned the exposures from the "6.6 tent" le badge een (98 R), and the ten Air Force men were assigned exposures be 40 R and 52 R, based perhaps on a knowledge of their activities. PATAPSCO CREW. The contribution of the crew of the Patapsco to the collective exposure is based on a recent estimate that considered e natural washdown provided by documented rain and the weather-deck vgrsus below-deck exposure (Reference 86). 240