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Forum: Hadronic Processes
Re: Question Cascade models taking into account Radioactive Decay (Fatima Garcia)
Date: 01 Mar, 2016
From: michel maire <michel maire>

On Mon, 29 Feb 2016 23:21:55 GMT, Fatima Garcia wrote:
> Hello all,
> 
> I'm working on modelling in-target isotope production rates. I would
> like confirmation (and possibly a source that verifies) that the cascade
> models such as the Bertini, the Binary and the Liege cascade models do
> not natively deal with radioactive decay. (And as a consequence the
> isotope generated do not decay via their appropriate methods).
> 
> I strongly suspect that this is the case, but have been unable to find
> corroboration to this thought. I would guess that you would have to
> couple the Geant Radioactive Decay list(s) to take the output of the
> cascade models to process decay of the isotopes generated by the cascade
> models.
> 
> Is it anywhere in the Physics Reference manual?
> 
> Thank you, Fatima
> 

 I ran example Hadr06 with attached macro : thermal neutron on a block of Co59, with and without radioactive decay registered (see PhysicsList.cc).

 As you can see, without radioactive decay, only neutron capture happens. With radioactive decay, one can see the decay Co60 --> Ni60

 Of course, this case test only neutronHP. You can re do the exercise with different, simple situations involving cascade packages.

   Attachment:
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2016/03/01/12.17-50312-fatima.mac.txt
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2016/03/01/12.17-79731-fatima.out.txt

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