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Forum: Run Management
Re: Question Isotope population at end of simulation (Cristian Acuņa)
Date: 26 Jul, 2013
From: Gumplinger Peter <Gumplinger Peter>

To be clear, in Geant4, the material is immutable during a single run. You'll have to make changes to the isotope composition of a material yourself from one simulation (run) to the next if you want to simulate, for example, how neutron thermalization changes over time in a reactor. If you are just after how many isotopes are produced in the constant, original material for a given number of neutron histories, you count the isotope ions as they are produced by neutron interactions. This is approximately correct so long as the isotope composition change is miniscule for the number of histories you simulate.

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1 Feedback: Re: Isotope population at end of simulation   (Cristian Acuņa - 02 Aug, 2013)
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