Message: Re: Problems about the (n,2n), (n, n+p) reactions of some elements simulated by HPNeutron, G4.9.6.p02 (and G4.10.0.p02) Not Logged In (login)
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None Re: Problems about the (n,2n), (n, n+p) reactions of some elements simulated by HPNeutron, G4.9.6.p02 (and G4.10.0.p02) 

Forum: Hadronic Processes
Re: Question Problems about the (n,2n), (n, n+p) reactions of some elements simulated by HPNeutron, G4.9.6.p02 (Tatsuki.Kaku)
Re: None Re: Problems about the (n,2n), (n, n+p) reactions of some elements simulated by HPNeutron, G4.9.6.p02 (michel maire)
Re: None Re: Problems about the (n,2n), (n, n+p) reactions of some elements simulated by HPNeutron, G4.9.6.p02 (and G4.10.0.p02) (Tatsuki.Kaku)
Date: 02 Nov, 2014
From: michel maire <michel maire>

On Sun, 02 Nov 2014 06:31:21 GMT, Tatsuki.Kaku wrote:
> Dear Michel,
> 
> Thank you very much for your reply! I have tried with G4.10.0.p02.
> However, similar results were obtained. Seen in the attachment
> Ti.out.txt, no nucleus is produced by (n,2n), (n, n+p), (n,n+a)
> reactions for Ti-48, while recoil nucleus can be observed in the case of
> iron (please find in the attachment Iron.out.txt). Since you have
> observed correct nucleus production in G4.10.0, I begin to doubt my
> setting of G4. I installed the G4 with following packages:
> GEANT4.9.6.p02, G4NDL4.2; GEANT4.10.p02, G4NDL4.4. The environment
> variables: G4NEUTRONHP_SKIP_MISSING_ISOTOPES and
> G4NEUTRONHP_DO_NOT_ADJUST_FINAL_STATE have been set to 1. Did you use
> other neutron data libraries instead of G4NDL4.4 in your simulation? By
> the way, is there study that validates the recoil production by
> NeutronHP processes of GEANT4?
> 

 I did not use any environment variables.
 But activating DO_NOT_ADJUST_FINAL_STATE reproduce your problem.

 I suggest you to open a bug report

     Michel

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