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Forum: Event and Track Management
Re: Question Stepsize limitation (I Cornelius)
Date: 23 Mar, 2004
From: michel maire <michel maire>

 Run examples/extended/electromagnetic/TestEm5 with the attached macro
 to study the impact of the step size on multiple scattering.
 Run the macro interactively, with visualization, in order to see few
 events. Plays with the step size limitation.

 # $Id: vincour.mac,v 1.1 2003/08/11 10:09:43 maire Exp $
 #
 # macro file for TestEm5.cc    
 #
 # angle distribution of  6.56 MeV protons
 # transmitted through thin silicon targets.
 # J.Vincour,P.Bem NIM 148 (1978) page 396. 
 #     		    
 /control/verbose 2
 /run/verbose 2
 #
 /testem/det/setAbsMat   Silicon      
 /testem/det/setAbsThick 92.6 mum  
 /testem/det/setAbsYZ    93 mum
 #
 /run/initialize
 #
 /testem/gun/setDefault
 /gun/particle proton 
 /gun/energy 6.56 MeV
 #
 /testem/histo/setFileName vincour.paw
 /testem/histo/setHisto 6  200 -100.  +100. mrad		#projected angle
 /testem/histo/setHisto 7   80  -20.   +20. mum		#projected deviation  
 #
 /testem/stack/killSecondaries
 #
 /testem/stepMax 10 mum
 #
 /testem/event/printModulo 1000
 ###/run/beamOn 10000
  

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