3. TASKS AND PLAN OF ATTACK 301 Radiological Surveys Prior to any test operations, assessment of the radiological hazards will have to be made. Such assessment will include preliminary monitoring surveys to determine the magnitude of the radiological safety problem and supplementary surveys made during the course of the test operations to obtain additional detailed information on the radiological safety situation. Since the test operations themselves are designed to reduce the radiological hazards, it will be necessary to make pericdio checks on the radiological situation in order to maintain a complete and upto-date radiological situation map of the test ships. The results cf the radiological surveys will be useful in planning and coerdinating the day- to~day-test eperations of Project 6.4. Various types of surveys will be made. In addition, to direot radiation measurements of beta-gamma dose rates, checks will be made or. removable contamination, concentration of airborne radioactive material, personnel and clothing contamination, etc. Periodic monitoring cheoks will be made in non-radiological areas adjacent to the test area to assure that the contamination is kept under control at all times. Cone tinuous recording monitoring instruments will be used to detect any Significant use in the general background in certain critical areas such as the Radiological Safety Building itself. 3.2 (See Tab G-3 for details). Persnannel Dosimetry In order to control excessive radiation dosage and to collect useful dosage information on Project 6.4 personnel, it will be necessary to set up a very detailed personno] dosimetry program. an) ST, LOUIS Feat In addition to the standard TU-7 film badge, various types of per- sonnel dosimetry devices will be worn by Project 6.4 personnel. These devices will be processed more frequently than the TU-7 film badge and will generally provide more detailed radiation dosage information. Studies will be made on the correlation between monitoring survey dose rate information and integrated radiation dosage, as shown by the personnel dosimetry devices. It is planned to ecllect information on the shielding effect of the human body on personnel dosimetry devices and the optimum amount of dosage information required to control excessive radiation dosage of operational personnel. Additional information is desired on the distinction between dosage information required to control decontamination operations and that required to effect an integrated radiation dosage record for personnel medical records. (See Tab G-4). 4 7a L//