4 Dee ore For RG aco cae CON:Dos ageity amano - ange Pe Location HEALTH DIVISION PROGRESS REPORT Collection I. wy (uur Sfa H Difisin rateresified6Je3 November 20 - December 20, 1954 REF: He 206 326 US ATOMIC ENELAGY 2 ee SO ADMINISTRATION (Thomas L, Shipman,M, D,, Leader) 410671 A, General Remarks The studies on the urines from personnel exposed to fallout on 1 March 1954 have been completed, The final figures for the amounts of various isotopes present are essentially unchanged and it still appears quite correct to feel that even under the adverse conditions which were present at the time av the hazard of external exposure is still the limiting factor. Of the isotopes - atsorbed internally, iodine was unquestionatly the most significant. Other isotopes were certainly present but not in quantities great enough to be regarded as Ganzerous. developed. A greatly improved quantitative test for sro"vas It has become obvious that our knowledge of the behavior of ium Xiin roat ntis siro * s jec Wil hy cetc i chy, to say, the least, BO ey _Subjesyuil sket body is the h pursued strenuously. Claes'fication changed ; be to by ODES tne U.S.E. ,B.A, Merbers of the Biopftrysics. heer‘Seracy ioH) GarinjosecoraCH w/ 7 8 $nT 5 ew “OF ae oT i a Leg we’ tion with a group from Oak si dee, anpiher group from ‘the Biophyssics_ (fs praise of |~a-gon Wicang tha changa, end dat?) h of the Division of Eiology and Medicine in Washington, and Dr. Herald Rossi of Coluntia University, are preparing to engage in a project on neutron dosimetry at Operation Teapot. The preparation for this project has involved two BEST COPY AVAILABLE principal phases: 1. The data and results from neutron dosimetry studies at previous test operations have been evaluated with great care, The emphasis of the pro- posed study is in part to confirm these previous ones, but even more to fill up the zaps in the spectrum. _ COPIES _ LANE RG BYA RS iW lo bse ss co Oo Hee eee a eee ee SOTNRa enn TA Le wo UU ee 1 ,