in Table 6. The values of D, are given in reference 2, as are the com- binations of De,(t) and ionization rete et | hei or the response of the AN/PDR-TIB to the of 3 feet above a uniformly distributed source of U°39 fission products. The value of rpp(t)» for t = H+br, can be estimated from L+2,. - fp e we rep(2) 2S od ene where, from empirical correlations of data, . ; ae = 0.32 we 086 k = hit x 1079 wo got for lend shots. For seawater fallout from lerge yields (>1 Mf), r is one; for yields less than 1 MI only rare gas daughter products considered. The average value of g was determined, from Operation REDWING date, to be 0.80 for the islands of Bikini atoll. The average value of q for the Nevada Test Site (area 2), from Operation PLUMBBOB date, was found to be 0.75. The values ranged from 0.5 to 1.0 end include the assump- tion that no sample-collector bias occurred when the calculated q value was less than about 1.0. An empirical curve for & (Fig. 3) wes used to correct the data to equivalent surface detonations for correlating the observed data of M.(2). } | poE/Nv From correlations of M,(2) date from Operations JANGLE, CASTLE, end REDWING, empirical equations for K(x,W) were determined; these are K(x,W) = 2.2 x 10°w@21/2 ya to aor = 4.0 x 10729 470-0083/2 W= 12 to >10¢ et iv