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Forum: Physics List
Re: Question Does Geant4 model proton boron fusion reaction? (Leila Moghadasi)
Date: 15 Apr, 2018
From: michel maire <michel maire>

 1- I ran example Hadr03 with following macro (proton 4MeV on B11) , both with binary cascade and Bertini. Outputs and plot on alpha spectrum in attachment. 
 #
 # Macro file for "Hadr03.cc"
 #
 /testhadr/det/setIsotopeMat B11 5 11 2.46 g/cm3
 /testhadr/det/setSize 100 m 
 #
 /run/initialize
 #
 /process/inactivate hadElastic
 #
 /gun/particle proton
 /gun/energy 4 MeV 
 #
 /analysis/setFileName boron-bic
 /analysis/h1/set 6  100  0. 10. MeV	# alpha
 #
 /run/printProgress 10000
 /run/beamOn 100000

 2- About Be8 decay. In the dataset G4RadioactiveDecay/z4.a8 there are 3 levels candidates to decay : ground state, 3030 keV and 16626 keV, which give alphas  of 45.9 keV, 1.56 MeV, 8.36 MeV respectively.
From where come your alphas of 2.74 MeV ?
 #
 # macro fo rdecay01
 #
 /gun/particle ion
 /gun/ion 4 8
 ###/gun/ion 4 8 0 3030.
 ###/gun/ion 4 8 0 16626.
 #
 /tracking/verbose 2
 /run/beamOn 1
 /tracking/verbose 0
 #
 /run/beamOn 10000

   Attachment:
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2018/04/15/14.39-90398-boron-bic.out.txt
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2018/04/15/14.39-74322-boron-bert.out.txt
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2018/04/15/14.39-24180-alpha.gif

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