Hi everyone,
I’m new with Geant4 , I have to calculate Linear Transfer Energy of a flux of protons against a plate , I modified example B1, but I do not have any idea of how to calculate LET. Could someone help me ?
Thank you in advance.
For LET calculation you can use the G4Em Calculator class (http://www.apc.univ-paris7.fr/~franco/g4doxy/html/classG4EmCalculator.html). There you’ll find the function ComputeTotalDEDX(), which the Stopping Power.
The Stopping Power unit is generally MeV/cm. To compute the LET, you need to divide the Stopping Power by the material density, getting then MeV.cm2/mg.
A suggestion is to cross check your results with NIST Stopping Power data, for validation purposes 
Hope it helps.
Thank you so much. I’ll try this suggestion.
Hello, I have found the G4Emcalculator class,but i do not know how to use this class and function to calculate the ions LET in the material. Is there any example can i study? (the “HadrontherapyLet” only calculate the LET of the special particles not the heavy ions)
You may see examples/extended/electromagnetic/TestEm0
May I know which LET is used? Dose average or spatial LET track ? Could you help me, please?