UNCLASSIFIED SECURITY CLASSIFICATION OF “41S PAGE REPORT DOCUMENTATION PAGE Ta REPORT SECURITY CLASSIFICATION 2a tb. RESTRICTIVE MARKINGS UNCLASSIFIED N/A 3 DISTRIBUTION / AVAILABILITY OF REPORT SECURITY CLASSIFICATION AUTHORITY NfR since Unclassified 2b. OECLASSIFICATION / DOWNGRADING SCHEDULE N/A since Unclassified 4 PERFORMING ORGANIZATION REPORT NUMBER(S) 5. MONITORING ORGANIZATION REPORT NUMBER(S) SAIC-86/1608 6a. NAME OF PERFORMING ORGANIZATION 6b. OFFICE SYMBOL Science Applications (f applicable) International Corporation Bc. ADORESS (City, State, and 2/P Code) P.O. Box 1303 McLean, Virginia 22102-1303 Ba. NAME OF FUNDING / SPONSORING Washington, DC 20305-1000 (if applicable) Defense Nuclear Agency DNAO001-85-C-0101 10 SOURCE OF FUNDING NUMBERS PROGRAM PROJECT TASK 62715H VW _ TITLE (include Security Classification) M WORK UNIT __4H 00012 ANALYSIS OF RADIATION EXPOSURE, SERVICE PERSONNEL ON RONGERIK ATOLL, OPERATION CASTLE, SHOT BRAVO PERSONAL AUTHOR(S) J. Klemm J. Phillips J. Goetz 13a TYPE OF REPORT Cc. Thomas 13b TIME COVERED Draft Final 16 [9 PROCUREMENT INSTRUMENT IDENTIFICATION NUMBER STBE/NTPR Be. ADDRESS (City, State, and ZIP Code) 12 Defense Nuclear Agency 7b. ADORESS(City, Stare, and Z/P Code) 8b OFFICE SYMBOL ORGANIZATION 7a. NAME OF MONITORING ORGANIZATION 14 DATE OF REPORT (Year, Month, Day) FROM TO [15. PAGE COUNT 1986 April 24 SUPPLEMENTARY NOTATION This work sponsored by the Defense Nuclear Agency under RDTGE RMSS Code B3500 84466 M H 00012 25904D FIELD COSATI CODES GROUP SUB-GROUP 18 SUBJECT TERMS (Continue on reverse if necessary and identify by block number) Operation CASTLE, Shot Bravo Radiation Exposure Assessment Rongerik Atoll Nuclear Test Personnel Review (NTPR) ABSTRACT (Continue on reverse if necessary and identify by block number) External and internal doses are reconstructed for the 28 American servicemen stationed on Rongerik Atoll, Marshall Islands, who were exposed to fallout on 1-2 March 1954 from Shot Bravo of Operation CASTLE. External doses are determined from limited radiation survey and film badge information. Internal dose commitments are derived from urinalysis data. The magnitude of the calculated activity intake suggests the principal pathways. Reconstructed film badge doses are approximately 40 rem, with adjustments from individual activity scenarios, as available. Internal dose commitments to the thyroid and large intestine (nearly all first- year dose) provide the only significant increments to the external dose. Total doses are approximately 230 rem to the thyroid, 115 rem to the lower large intestine, 85 rem to the upper large intestine, and about 40 to 50 rem to all other organs. 20. DISTRIBUTION / AVAILABILITY OF ABSTRACT CIUNCLASSIFIED/UNLIMITED {3 SAME AS RPT. Cl oric users 22a. NAME OF RESPONSIBLE INDIVIDUAL UNCLASSIFIED 22b. TELEPHONE {include Area Code) 22¢. OFFICE SYMBOL Betty L. Fox DO FORM 1473, 84 MarR 21 ABSTRACT SECURITY CLASSIFICATION (202) 325-7042 83 APR edition may be used until exhausted. All other editions are obsolete. i DNA-STTI SECURITY CLASSIFICATION OF THIS PAGE UNCLASSIFIED