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Forum: Event and Track Management
Re: None About Volumes and Tracks (Mike L)
Re: Feedback Re: About Volumes and Tracks (Gumplinger Peter)
Date: 27 Jun, 2007
From: michel maire <michel maire>

User Peter Gumplinger wrote:
>> Michel is the greater expert,
>> 
>> but what happens if the multiple scattering step limitation in water is
>> larger than the sub-block size. In this case, the 'trajectories' -
>> straight lines connecting step-points - would be more zig-zag than in
>> the homogeneous case because the multiple scattering angles and lateral
>> displacements are now calculated based on the geometrical step length.
>> 
   I wanted to underline that it is more efficient to limit the step
   'by hand' (for example G4StepLimiter) rather than use artificial
   geometrical boudaries : step limit can be applied to charged particle
   only.

   In TestEm11, we try to demonstrate that dose profile is the same with
   StepMax (run01.mac) and replica (run02.mac)

             Michel

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