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Warning 19G4HadronicException depending on the machine! 

Forum: Hadronic Processes
Date: 01 Mar, 2013
From: Jérôme Roccaz <Jérôme Roccaz>

Hi everyone!

The title of my message seems not really clear but i explain what happens.

I have one remote computer and one virtual machine on my laptop. The remote computer runs under Red Hat Linux and the virtual machine under Scientific Linux. On both machines I have installed geant4 realease 9.5.p01 : on the remote computer it has been installed with the new cmake method and on the virtual machine it has been installed with the old method.

On both computer I run the same program. The 241Am is defined and used. When I run the program on the virtual machine, I have such message :

Construct Had Construct Had IONS Construct Had alpha Construct Had neutron NeutronHP: /Elastic file for Z = 95, A = 241 is not found and NeutronHP will use /home/jerome/geant4/geant4.9.5.p01/data/G4NDL4.0/Elastic/CrossSection/92_241_Uranium

Ok Geant4 does not have Am data but switch by itself to near nucleus data that is 241U.

When I run the program on the remote computer, I have such message :

Construct Had
Construct Had IONS
Construct Had alpha
Construct Had neutron
Please contact Geant4 Hadron Group Coordinator
In /data/Geant4/geant4.9.5.p01/source/processes/hadronic/models/neutron_hp/src/G4NeutronHPNames.cc, line 92:
===> G4NeutronHPNames::GetName - data with Z>92 are not provided
terminate called after throwing an instance of 'G4HadronicException'
  what():  19G4HadronicException
Abandon

That time Geant4 cannot swith by itself whereas it does for other nuclei defined within my program (but theu have a Z < 92). If I defined 241Am with Z=92 (instead of 95) problem is bypassed.

I have checked the neutron data installed on the remote computer on the virtual machine and no problem appears : data are the same.

So where does the problem come from and how to resolve it?

thanks a lot,

Jerome

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1 Sad: Re: 19G4HadronicException depending on the machine!   (Jérôme Roccaz - 11 Mar, 2013)
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