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On Fri, 21 Oct 2016 06:45:22 GMT, Andreas Mathis wrote:
> Dear all, > > I am currently simulating the energy deposit and the stopping of > low-energetic alpha particle (~ 5 MeV) in a gas with similar properties > than air. Therefore, I am employing the low energy phyiscs lists, such > as G4EmLivermorePhysics or G4EmStandardPhysics_option4. > > Unfortunately, I need to know the profile of the Bragg curve as exact as > possible. Are there any further options required to achieve this? > > For example, comparing my code to the one of the Electromagnetic > examples (7 & 11), I see that in 7) additional proccesses are added > (G4BraggIonGasModel and G4BetheBlochIonGasMode) and in 11) several > options are added (SetBuildCSDARange and SetDEDXBinningForCSDARange). > > Would you recommend the usage of some of these additional options? >
BuildCSDARange is to build a table of ranges from input de/dx (unrestricted), to allow a comparison with simulated results. (the comparison is printed at end of job) This quantity is not used during the simulation and, therefore, has no impact on the physics