|Message: Re: In Geant4 simulation, how to modify the physics & MSC parameters for proton simulation?||Not Logged In (login)|
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Thank you for kind reply sir, I will try your 1st point suggestion. In the small field proton simulation, I am using the same geometry parameters of both Geant4 10.02.p02 and Geant4 10.04.p02 versions. But the new version Geant4 10.04 the fluence result showing error (like ripple) in dose entrance. I didnít change any parameters in G4EmStandardPhysics_option4. In the attachment file, I mentioned the Energy, phantom size, field size, detector size, and resolution. I have the same problem for other Energies and other fields. G4EmStandardPhysics_option3 also showing the same error for a small field. I attached PDF file for both Geant4 versions & options results. Attachment: http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2019/02/19/22.49-70681-Geant4.pdf
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