700 600 ~, wv 500 L we = < x 2 °o «e ©| zie 400 ~ —ila 3/9 vor 2 w] A 300 q = a q °2! 200 7 100 0 7 0 : 5 10 i5 20 ACTIVITY /SQFT (2108 WELL C/M AT H+I2HR} Figure 3.30 NaCl mass versus activity per square foot, Shot Flathead. Figure 3.31 Radioautograph of slurryparticle trace and reaction area.