Oo 1 Operation Operation Gamma Dose Rates \ Redwing on Rongelap Isiand Milliroentgens per hour AF stimated dose rate at D+l Hardtack 4 From Dunning 1957 O University of Washington ———Theoretical decay T7'2 Theoretical decay of ues fission products as measure by the AN/PDR-39 (TIB) 7 radiac at 3 feet above an a. infinite plane \ (Miller and \ Loeb, !958) 10 \ Marchl -2 1955 '56'57'58'59'6163 10 10° to at Io” Days after March 1,1954 and Marchi of each year indicated Fig. 2. 10* Decline of Gamma Dose Rates at Rongelap Island. 13