ie dose rate at 0+] lye Millrroentgens per hour (Dunning, 1957) \ | Operation Hordtack Gamma Dose Rates on — Kabelle Island \ —— Theoretical decay T? \ —— Theoretical decoy of U2>> fission products as measured by the AN/PDR-39 (TIB) radiac at 3 feet above an infinite plane io! (Miller and Loeb, 1958) Tv 10 ~— T 10? 9 00 3536 's7Sopoures T 3 10 Days after March}, 1954 and March 1 of each year indicated Fig. 3. Decline of Gamma Dose Rates at Kabelle Islet. 10