SRE side of the hangar deck, all samples delivered, They received, prepared, and assayed Desired data were reparted to all inter- _ ested personnel, Data obtained included discriminated activities, some beta and gamma energy determinations, The majority of the samples assayed were the water samples from various locations in the lagoon. In general, the primary assays desired were the decay-rates and bpecific activities per measure of sample submitted, Standard methods and procedures were used in the prepa- ration of the subsequert analysis of samples furnished, c. Phte:odosimetry and Records Section This section operated until M+2 days aboard the USS RENDOVA using a photocesinciry Laboratory Trailer located adjacent to the Field Laborztory, Unca re-entry the section moved ashore ard resumed its operations at theRadiological Safety Center, Parry Island, Films were stored, handled, and issued in such a manner as to minimize any yncesireable effects such as himidity, loss of control, etc. Filis cond the self-reading pocket dosimeters were calibrated using staviard radium source procedures, Calibration curves were obtainea for the film, and thepocket dosimeters were marked with an appropriate correction factor. Film readings were the standard of record while dosimeters were primarily used to indicate a "running" exposure record by the monitoror user. = 70 COPIEDIOGE % LANL ROH. Records 24