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Re: Question Why is half life changing? (Cejo George)
Date: 21 Jan, 2013
From: michel maire <michel maire>

On Mon, 21 Jan 2013 10:59:01 GMT, Cejo George wrote:
> Dear Geant4 users,
>  I'm using rdecay01 example to develop my code. But in this example i find that
> with change in activity (by changing /run/beamOn ) half life also changes which is 
> wrong isn't it. I think once isotope is known (through /gun/ion ) half life should 
> always be constant how much ever be the activity. 
> 
> Also, is it necessary to use histogramming to correctly implement
> radioactive decay examples.
> 
> Regards, Cejo George
> 

 The printed halfLife is the result of monte carlo simulation. You must make sure that your statistic is big enough.
 In case of the exponential law, a good indication this that mean = rms (histo 8) 

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