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clear
clc
disp('Exa-13.3(a)')
v=1.5*1.5*2.5*(10^-6)*10^2; //volume in cm3
p=8.9; //density in g/cm3
m=p*v;Na=6.023*10^23 //mass and Avagadro's number
M=58.9; //Given values
N=m*Na/M;
i=12*10^-6; //thickness of beam
q=1.6*10^-19;
Io=i/(2*q); //intensity
s=0.64*10^-24; //Given values
S=1.5*1.5;
R=N*s*Io/S; //rate of production of 61Cu
printf('The rate of neutrons emitted from the target is %.2e particles/second\n',R);
disp('Exa-13.3(b)')
act=R*(1-(%e^((0.693)*(-2/3.41)))); //activity
printf('The activity after 2.0h is %e/sec',act);
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