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Forum: Hadronic Processes
Re: Question Hadron Elastic Scattering (Cristina Consolandi)
Date: 05 Jun, 2008
From: Vladimir IVANTCHENKO <>

On Thu, 5 Jun 2008, Cristina Consolandi wrote:

> *** Discussion title: Hadronic Processes
> Email replies to must include:
>   In-Reply-To: <"/hadronprocess/934">
>   Subject: ...change this to be about your reply.
> Hi,
> In my simulation I would like to have silicon recoils spectra from ions interaction
> (E>1GeV/n) with a Silicon targhet (thickness ~300 um)
>  I used:
>  G4HadronElasticProcess* theElasticProcess = new G4HadronElasticProcess();
>  G4DiffuseElastic* theElasticModel = new G4DiffuseElastic();
>   //or
>  G4ElasticHadrNucleusHE* theElasticModel = new G4ElasticHadrNucleusHE();
>    theElasticProcess->RegisterMe(theElasticModel);
>    pmanager->AddDiscreteProcess(theElasticProcess);
> but in both cases I was not able to have silicon recoils as secondaries. Do I have to add 
> something else to my simulation?
>  Thank you very much.
> Cri

Hello Cristina,

What is the projectile? If it is more heavy than He4 both models you are 
trying to use are not applicable. In the reference PhysList QGSP_BIC you 
will have recoil for proton, neutron, He4 incident.

We have also electromagnetic models with recoil working at lower energies.


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1 Note: Re: Hadron Elastic Scattering   (Cristina Consolandi - 05 Jun, 2008)
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