10 — N = . —] Yo = ( 4 10° L— 16" = IONIZATION RATE 10% FISSIONs FT? ) 10° — P wm ZUNI CLOUD — —== TEWA CLOUD | ———- TEWA LAGOON . --~— NAVAJO . 10° b= FLATHEAD 10" = ——— ZUN1 LAGOON iLL LEE 3 y LL 1 s Ee 10 107 FE 10° AGE (HR) Figure 3.39 Computed ionization-decay rates, Shots Flathead, Navajo, Zuni, and Tewa. 112 10°