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Simulate Gamma Rays from Radioactive Decay

  1. Aug 9, 2012 #1
    Hello, I am trying to simulate the gammas from certain radioactive decays but I am really puzzle as to how to approach this. The site I'm using as a reference lists the intensities of the different gammas corresponding to an specific decay.

    The thing that confuses me is that, for example, some intensities do not add up to 100; which is understandable since there might be more than one gamma emitted per decay. But then, how would one simulate this?

    For example, Lets say I have X -> Y + gamma and lets say I have two different gammas, a and b, with intensities 50 and 60 respectively. Then, the way I think about it is that out of 100 decays, 50% of the time I get a, and 60% of the time I get b. But how does one tell a computer to do this?

    It appears to me that normalizing the intensities wouldn't work and so throwing a single random number between 0 and 1 won't work. Is the best approach to just do a different random number for each intensity?
     
  2. jcsd
  3. Aug 9, 2012 #2

    QuantumPion

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    Science Advisor
    Gold Member

    If your question is how to make a computer program randomly pick between two options, the simplest solution would be something like:

    real gamma,energy1,energy2,i
    energy1=a
    energy2=b
    i = rand()
    if i > 0.5 gamma=energy1 else gamma=energy2
     
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