1 pnA 1 / (1.6 * 10^ (-19)) = 6 * 10^18 6*10^18*10^(-9) = 6 * 10^9

1 pnA : 6 Gcps 1 puA : 6 Tcps

Reaction rate: 0.5* 0.05 * 7 * 0.6 / 56 = 0.002 6 Tcps * 0.002 = 12 Gcps

77/ln(2)=111

30 MeV * 1uC/s/e 30 W 30W*5*60s=9kJ 9kJ/(0.4 J/g/K)= 22 kg K

number of the 56Co 12*10^9 * 5* 60 = 3.6 * 10^12

3.6 * 10^12 /(111*24*60*60) = 400 kcps

Reaction rate: 0.05* 0.1 * 7 * 0.6 / 56 = 0.0005 6 Tcps * 0.0005 = 3 Gcps

3*10^9 * 12* 60 = 2.2*10^12 2.2*10^12/(17*60*60)=