imated dose rate at 0+1 j =Est (Dunning, 1957) Milliroentgens per hour 10> lO J \ | Operation Nt Hordtack \! Gamma Dose Rates on Kabelle Island I 4 \ -1.2 —— Theoretical decay T ‘ \N —— Theoretical decay of U*>* fission products as measured by the AN/PDR-39 (TIB) radiac at 3 feet above an infinite plane io! (Miller and Loeb, 1958) T T 10 10? 0 PO ‘38 ‘sp s7 sppHNES a 10° 10" Days after March 1, 1954 and March 1 of each year indicatedartment of Energy “piston!ian’s Office Fig. 3. ARCHIVES Decline of Gamma Dose Rates at Kabelle Islet. 14