14 Estimated dose rate at D+1 Milliroentgens per hour (Dunning, 1957) \ | Operation Nt Hardtack \I \ Gamma Dose Rates on 4 \ Kabelle Island ° —~— Theoretical decay T'? \ \ \ ——- Theoretical decay of U*>* fission products as measured by the AN/PDR-39 (TIB) radiac at 3 feet above an infinite plane lO (Miller and Loeb, 1958) ‘55 4. 10 102 0O ‘56 ‘57 '58'59'1'63 LL. 4, 4 fk 10° Days after March 1,1954 and March 1 of each year indicated Pig. 3. Decline of Gamma Dose Rates at Kabelle Yslet