SMALL BOY SHOT FALLOUT RESEARCH PROGRAM 6: The computed values of K, are plotted as a function of dey ir Fig. 4. It may be noted that the curves of i(100), i’(100), and K, giver as a function of d;) in Figs. 2, 3, and 4 are very similar to the curve for i(100) plotted as a function of d in Fig. 1. 3000 TOT TTT TTT ry yt 10,000 TTT TTT TTT TT TT TTT3 & TWO VALUES 4 i Ky, R/HR AT 1 HR PER KT/SQ MILE THREE VALUES 100 Lt 10 pri 100 Lt tt tee 1000 Lt PLL 10,0€ dso. B Fig. 4——Variation of Kg with dsp for fallout-collecting stations. The high values of K, for the stations in the 35- and 56-numbered series (Table 7) suggest that the I, values are overestimated by correction of the monitoring data! to 1 hr with the t~' function. The adjustment of the two apparently different sets of reported A, values: to a midvalue rather than correction of one of the two sets of data to be consistent with the other may have resulted in Ky values that are either low or high by 25%. Further investigation of the reported data® together with theoretical analyses may suggest what corrections are appropriate. The Dq terms of Eq. 12 can be evaluated using an appropriate value of Keo The selection of a value hereis limited to the k,, value for the fission products from the thermal-neutron fission of 2357) because the i(100) and r, values, as deduced from the ion-chamber measurements, are based on the response of the ton-chamberto the 3507 products. The calculated value® of k,, is 3950 r/hr at 1 hr per kiloton per square mile. The Dq of Eq. 12 is given by Dq = K Ky 3950 r,P 20)