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Forum: Hadronic Processes
Re: Question Proton inelastic reaction with PreCompound Model (Jeyasingam Jeyasugiththan)
Re: None Re: Proton inelastic reaction with PreCompound Model (michel maire)
Date: 09 Sep, 2013
From: Jeyasingam Jeyasugiththan <Jeyasingam Jeyasugiththan>

On Mon, 09 Sep 2013 13:53:31 GMT, michel maire wrote:
> On Wed, 04 Sep 2013 14:27:05 GMT, Jeyasingam Jeyasugiththan wrote:
> 
> > Dear Geant4 users, I am studying p+O inelastic reactions. Incident
> > proton energy is 15 MeV and The PreCompound Model was selected. The
> > following reactions were observed.
> > 
> >  proton + O16 --> 2 gamma + proton+ O16[0.0]:     12  
> >  proton + O16 --> gamma + proton + O16[0.0]:      26   
> >  proton + O16 --> proton + alpha + C12[0.0]:      947   
> > 
> > According to the experiment XS data, Reactions with gamma emission are
> > higher than C12 production. Is there any way to increase the gamma
> > production reactions by reducing C12 reactions in the Geant4. Are there
> > any examples? I have used different physics models but I couldn't see
> > any improvement.
> > 
> > I greatly appreciate your helps.
> 
>  I ran Hadr03 with FTFP_BERT_HP physicsConstructor.
>  Macro and output in attachment.
> 
>    Attachment:
>       http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2013/09/09/06.52-39449-O16.mac.txt
>       http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2013/09/09/06.52-46903-O16.out.txt
> 

Hi Michel, Thanks for your comments. Yes it is ok with FTFP_BERT_HP but no discrete gammas are producing (spectrum would be continuous). I am looking for discrete prompt gamma energy peaks. Is it possible to get discrete gamma peak using this Physics. What I have to do to get it. I would appreciate your help. with thanks Sugi

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