|Message: Re: 3-Dimensions Dosedistribution in Hadrontherapy.||Not Logged In (login)|
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As you said, I sum all of z values on x-y plann.
So, I got a graph like this attached file(100000_200MeV_0.01mm_3D.jpg)
You can see that this graph has two peaks.
In the case of typical bragg peak, it has only one specific peak point.
Also, when I sum all of y, z values on x-axis,
I found the same situation(Please see second attached file).
I can't understand why it has two peaks.
Some variables can affect bragg peak?
PS: When I use default setting of Hadrontherapy, I got a normal bragg peak.
My setting value is the below:
Phantom and detector size: 40cm 40cm 40cm Voxel size(x,y,z): 2mm
phantomPosition(20.*cm, 0.*cm, 0.*cm) detectorToPhantomPosition(0.*cm,0.*cm,0.*cm)
/beam/energy/meanEnergy 200 MeV /beam/energy/sigmaEnergy 500 keV /beam/position/Xposition -2000 mm
/physic/setCuts 0.01 mm /Step/waterPhantomStepMax 0.01 mm /gun/particle proton
Attachment: http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2010/05/08/11.17-16284-0000_200MeV_0.01mm_3D.JPG http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2010/05/08/11.17-107-00_200MeV_0.01mm_1D_X.JPG
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