82 EFFECTS OF IONIZING RADIATION owod rp 100 0.6 wood ty it i 0.7 Aan 0.9 0.8 a BETA ANDGAMMA ACTIVITY (d/m/24 HR x103) “anny | ® ° -—~- 90 0.3L 3 O2- . ~| a} 0.1 2 32 & a 20 3 40 50 60 70 80 30 DAYS POST-DETONATION 0 110 i20 130 140 Fiovure 5.1.—B8ecta and gamma actiwity in chicken ezorcta. normally constricted, possibly because of a decreased rate of endosteal resorption. A tibia from a pig sacrificed 45 days post detonation had an area under the growing epiphysis free of activity (Fig. 5.4). As im the chick described above, this area corresponds to the growth which took place after the animal was removed from the area of contamination. The