a. oN k 410903 Dr. Walter D. Claus, Chief Biophysics sranwu, we eee Divn of Biology & Medicine, USAEC, Wash, D.C. P, W. Spein, Manager, ER ,Albuquerque, New Mexico /s/ P, W. Spain T. A. Hardison, AEC Resident Engineer, PPO /s/ T.A. Hardison FILM BADOK MEASUREMENT OF GAMMA EXPOSURE AT RONGELAP ATOLL « QAIS24 Bor LE wv.ATIVES L986 ee ary » WARC 374 De FENSE, oF en + ENR: RLT:M-777 Tabulated below are the dita resulting from the project initiated o6arcy Nuccena_ SYMBOL ¢ during your December visit to the Pacific Proving Ground. The "measured mr gamma" column lists the exposure determined by photodosimetry; the "calculated mr gamma" column lists the exposure calculated from gamma dose rates determined with a Beckman MX-5 survey meter. FONGELAP VILLAGE Badges in place from 1600 6 Dee 195 to 1130 18 Dee 195) (235.5 Hours) MEASURED mr CALCULATED mr Knee 200 263 Head 200 235 On Surface 14,0 235 355 70 On Surface (Low Box) 7S 75 165 On Surface 140 353 200 235 mS Co HEJGHT ABOVE SURFACE (Board Floor) Knee (School Table} Surface Surface GAMMA 200 200 140 510 200 160 305 a GAMMA CLASSIFICATION CANCELLEO BX AUTHORITY OF DOE/OC , . .¥ AVAILABLE “