oo gaecem A sample of coral sand was scoope2 up from the ground “an Aomoen Island for leaching studies to determine distribution = of activities within the fall-out particles. The sample was | leached once with weter and then with successive portions of i4lute hydrochloric acid. Data are given in Table 2.6b-2. Weight of total sample was 2.1453 g. TABLE 2.6b~2 ACTIVITY REMOVED ?ROM AOMOEN SAND BY LEACHING CORRECTED TO K+12.2 DAYS f Lesch No. Weight Dissolved Specifie fetivity of Solution (c/min/mg ) (mg) Gross F.P.'s pa Fo 2 2.4 88.9 1.40 x 10+ 1.7x103 4.8 x 102 6.41 x103 6.1 x101 6.2 x 108 4 97.3 9.15 x 102 9.4 2 98.4 5 6 , Sepope pe + mt repre oo | 91.0 187.3 Mo77 . Zr7? 2.12:x103 2.8 x10! 1.0x10! 5.61 x 10° 2.73 x 102 5.7 Not Determined Not Determined Mo99/2999 at Zero Time 63 18 50 30 7 187.8 1.57 x 10% 9.0 x 1072 5.1 x 1072 9 179.0 4.07 x 10° Undetectable 4.8x107! Very Low 3 378.5 " 10-14 3.8% x 102 6.4 x 107! 2.0 3.2 6.0 pata not yet available 2-fsetor calibration data for this operation are not available at “his *ize —Se However, some tndicetion can be obtained from the fact thet a 979/zr99 ratio of atout 23 is usueily obtained in the home | iaboratory for a thermal bombardment of 0239, CoplegYDOE NG sOIe | SE ~ - o2 gt me