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Question Neutron step length 

Forum: Event and Track Management
Date: 24 Apr, 2013
From: Saman Kiamehr <Saman Kiamehr>

Dear Geant Users,

I have a code in geant to count the number of generated electron due to a particle strike in a simple silicon cube. When the particle is neutron, the step length is around 0.5 m which is too large since I want to do the simulation for small dimensions.

Step#    X(mm)    Y(mm)    Z(mm) KinE(MeV)  dE(MeV) StepLeng TrackLeng  NextVolume ProcName
    0        0      -10        0       100        0        0         0   Fin_place initStep
    1        0      550        0         0        0      560       560   Fin_place NeutronInelastic
    :----- List of 2ndaries - #SpawnInStep=  7(Rest= 0,Along= 0,Post= 7), #SpawnTotal=  7 ---------------
    :         0       550         0        22            neutron
    :         0       550         0      16.1            neutron
    :         0       550         0        13             proton
    :         0       550         0      2.95             proton
    :         0       550         0     0.807            neutron
    :         0       550         0     0.114              gamma
    :         0       550         0      6.83          Mg24[0.0]
    :----------------------------------------------------------------- EndOf2ndaries Info ---------------

I tried to use G4UserLimits to adjust the step length of neutron, however, the step length of all the other particles have been adjusted except neutron. I was wondering if there is a solution to decrease the step length of neutron to a value smaller than 550 mm as shown in the results. I should mention that I am using QGSP_BERT_HP physic list.

regards, Saman

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1 Feedback: Re: Neutron step length   (Gumplinger Peter - 24 Apr, 2013)
1 None: Re: Neutron step length   (Saman Kiamehr - 25 Apr, 2013)
(_ None: Re: Neutron step length   (michel maire - 26 Apr, 2013)
(_ None: Re: Neutron step length   (Saman Kiamehr - 26 Apr, 2013)
(_ Feedback: Re: Neutron step length   (Gumplinger Peter - 26 Apr, 2013)
(_ None: Re: Neutron step length   (Saman Kiamehr - 26 Apr, 2013)
(_ Feedback: Re: Neutron step length   (Gumplinger Peter - 26 Apr, 2013)
2 None: Re: Neutron step length   (michel maire - 25 Apr, 2013)
1 None: Re: Neutron step length   (Saman Kiamehr - 25 Apr, 2013)
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