20 10 T Tr 10° 4 2 > s S $ SbSPIKE o lO F 7 S 3 S = 4 Tor SOIL 9-10" =] 10 J 0.5 | 1.0 1 1.5 MEV Fig. 10. Gamma-ray spectrum of young soil from a depth increment of 9 to 10 inches compared with the gamma spectrum of Sb 5, 4
20 10 T Tr 10° 4 2 > s S $ SbSPIKE o lO F 7 S 3 S = 4 Tor SOIL 9-10" =] 10 J 0.5 | 1.0 1 1.5 MEV Fig. 10. Gamma-ray spectrum of young soil from a depth increment of 9 to 10 inches compared with the gamma spectrum of Sb 5, 4