HO? STANOARD FORM NO. 64 | a lMENT l s F UNITED STATES GOVERN DQ Office Memorandu — TO C. L. Dunham, M. D., ntreot, “afSol Division of Biology and Medicine Gordon M, Dunning, Chief, Radiation BEfects .of Weapons Branch Division of Biology and Medicine RADIATION EXPOSURES - OPERATION HARDTACK SYMBOL: BMREW: AWK The film badge records of individual radiation exposures during the Pacific phase of Operation HARDTACK have been received by |the Division. The staff of the Radiation Effects of Weapons Branch thks compiled the attached list of exposures. A recapitulation of |these exposures is as follows: =~ a HISTORIAN As tae SUBJECT: 2 t 3% RG DOE COMMISSION 320 U.S. ALUMIL ENERUI FROM + Range x s& w} 4x and over < « xR S Ste 7r and over mls e 126 _ ‘88 54 . 8r and over 39 a 10r andover OM & 12r and over 6 6 - 26 9r and over 0 o | 5r and over 6r and over. “Bm 2 Number OQ - 12,413r (highest recorded) (about) 19669 3r and over 403 [8s 2 ~ DATE: October 29, 1958 ho 15 7 llr and over _ - 2 ‘ 1 Doses over 5r are those authorized because of the “urgent necessity. to collect timely data. Doses were authorized up to 20r for some individuals involved in cloud sampling operations. Enclosure: «oe Operation HARDTACK Personnel Dosage Report. ..—" of Personnel who participated in Operation HARDTACK and the Dosage of Whole Body Ionizing Gamma Radiation Received by Individuals (Over 03000). cc: \ ot a | f | Dr. Shilling Dr. Western gp Ae ( feet Aut PT TOTAL @ Erne pie / ih ag ey C. a a , Me c Gyr cat , On rey j ry 7 2 . +3 / 2 . * a aioe ; ‘ :