Gabriele Cosmo
55 lines
1.5 KiB
Python
Executable File
55 lines
1.5 KiB
Python
Executable File
#!/usr/bin/python
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# ==================================================================
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# An example of ploting by EmCalculator
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#
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# Plotting photon cross sections and stopping power
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# ==================================================================
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from Geant4 import *
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import ExN03pl
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import EmPlot
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# initialize
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EmPlot.Configure()
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# user physics list
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ExN03pl.Construct()
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# target material
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material= "G4_Pb"
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EmPlot.SetMaterial(material)
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# initialize G4 kernel
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gRunManager.Initialize()
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gRunManagerKernel.RunInitialization()
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# energy
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elist= []
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for n in range(-3, 4):
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for i in range(10,99):
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elist.append(i/10.*10.**n *MeV)
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# calculate cross sections
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xsection_list= CalculatePhotonCrossSection(material, elist, 1)
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xlist_tot=[]
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xlist_comp=[]
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xlist_pe=[]
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xlist_conv=[]
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for x in xsection_list:
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xlist_tot.append((x[0]/MeV, x[1]["tot"]/(cm2/g)))
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xlist_comp.append((x[0]/MeV, x[1]["compt"]/(cm2/g)))
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xlist_pe.append((x[0]/MeV, x[1]["phot"]/(cm2/g)))
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xlist_conv.append((x[0]/MeV, x[1]["conv"]/(cm2/g)))
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# make a plot
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myCanvas= EmPlot.init_root()
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aplot= EmPlot.make_plot(xlist_tot, "Photon Cross Section ("+material+")",
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"Cross Section (cm^{2}/g)")
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bplot= EmPlot.make_plot(xlist_comp, "Photon Cross Section ("+material+")",
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"Cross Section (cm^{2}/g)", 1)
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cplot= EmPlot.make_plot(xlist_pe, "Photon Cross Section ("+material+")",
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"Cross Section (cm^{2}/g)", 7)
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dplot= EmPlot.make_plot(xlist_conv, "Photon Cross Section ("+material+")",
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"Cross Section (cm^{2}/g)", 3)
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