-5- Comparison computer Strauss~61 Table 1. of gross fission calculations vs. Evacuation (hours) Atoll Rongelap (northern part) Rongelap (southemtern part) Ailinginae (Sifo island) Rongerik (southeastern part) ~tirik product total external doses for and estimates by Dunnin$sl Previous Estimates (roentgens) Present Calculations (rads) Time 51 1300 2000 [61 51 110 175 [51 58 24 <100 [51 30 340 78 [51 %10 [51 78 0.33 W’ith the modified MATHEW-ADPIC ... instantaneous immersion dose rate from code suite, time. inteval. This immersion can debris for any time the trade gross it is possible to calculate products as a function fission Figures Note that after wind level; the contour an easterly pattern the of 2a to 2f show surface for every three hours from one hour after time to H+l 6 hours. reaches toward be done dose rate contours stabilization Ref. traverse, moves south Bravo cloud most of the and finally the southwest. Individual Nuclides Calculations at 2 m above nuclicles were made of instantaneous the surface were considered Te-1 29, i-l 31, a=greewell with observations calculations too hi~h at Rongerik Ronqelag, for the several .+toll are presented is in ageement and southeastern in Figures with reports atolls affected I-1 33, at Rongelap and too low at Utirik both the northern and time-integrated atoll. parts by Castle-Bravo. (2s-1 37, and The surface of the atoll, The Eu-1 55. and Ailinginae 3a to Se. The time of arrival made by the inhabitants. concentrations atolls, These but are concentrations for and for Ailiginae of the first Bravo debris