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Forum: Medical Applications
Re: Question Bragg peak profile (elnaz yazd)
Re: None Re: Bragg peak profile (G.A.P.Cirrone)
Re: None Re: Bragg peak profile (elnaz yazd)
Date: 29 Apr, 2010
From: Francesco Romano <Francesco Romano>

Dear User, as you probably expects, the high dose value at the entrance has no physical meaning. Indeed, dose in the entrance should be roughly flat. What you have found is an issue related to the use of the appropriate stepMax, cut and slice thickness values together with the readout geometry, concerning the version you are using. Hence, please download the patch-01 of geant4.9.3 (released few days ago) and try to use it together with the hadrontherapy version included in the patch-01. Moreover, I would suggest you to use the default values of proton_therapy mac for the cut and stepMax (in case you have modified them). With this last version and with the default parameter values, you should not encounter the issue.

Hoping this can help you, kind regards,

Francesco Romano

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