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Forum: Particles
Re: None Alpha Particle Transport Error
Date: 03 Jun, 2005
From: Vladimir IVANTCHENKO <vnivanch@mail.cern.ch>

On Fri, 3 Jun 2005 brandon.d.reddell@boeing.com wrote:

> *** Discussion title: Particles
> Email replies to PublicHyperNews@slac.stanford.edu must include:
>   In-Reply-To: <"/particles/132"@geant4-hn.slac.stanford.edu>
>   Subject: ...change this to be about your reply.
> 
> GEANT4 users,
> 
> I am trying to simulate the transport of an alpha particle through
> aluminum. I get the following error:
> 
> *** G4Exception : 007
>       issued by : G4HadronicProcess
> GeneralPostStepDoIt failed.
> *** Fatal Exception *** core dump ***
> 
> The physics process that I am including are hadron+em+ln. I've tried
> creating the particle using /gps/particle alpha, and also using
> /gps/particle ion and /gps/ion commands with appropriate Z and A
> numbers.
> 
> The method I am using seems to work for other ions.
> 
> Does anybody know what the above error message is? and how to correct
> the error?
> 
> Sincerely,
> 
> Brandon Reddell
> 

Try "/tracking/verbose 1" to see what is the incident particle for 
hadronic interaction and what is its energy. Do you use home made 
PhysicsList or one from physics_list/hadronics?

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