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Forum: Medical Applications
Re: None LET in hadrontherapy (elnaz yazd)
Date: 20 May, 2010
From: G.A.P.Cirrone <G.A.P.Cirrone>

On Tue, 11 May 2010 06:58:30 GMT, elnaz yazd wrote:
> Dear sir
> 
> I need to get the LET of primary and fragment particles. for doing this,
> I want to get first the energy of each particle in any voxel and then
> compute the LET from Bethe-Bloch formula. is a direct parameter to have
> the LET's from code or should the users get it from formula?
> 
> With Best Regards Yazdani
> 

Dear user, in order to calculate the let you can utilize the method ComputeTotalDEDX(...) (see the G4EmCalculator class). This give you directly the total (nuclear+electronic) stopping power at a given energy/particle/material. Starting from this data you can easily get the Let (clearly this depends by the many definitions of the linear energy transfer).

An Hadrontherapy version with the possibility to calculate LET for any particle will be soon published. Regards, Pablo Cirrone

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