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Question Can a upperhalf bone slice and a lowerhalf water sensitive share the same detector? 

Forum: Event and Track Management
Date: 26 Feb, 2009
From: Kent Wong <Kent Wong>

 Hello, 

   I have a water cube phantom of 20cm. Originally I had a bone slice of dimensions (20cm,20cm,1cm) placed at the 2cm of that water cube. When 200MeV protons go through that phantom, my output seems fine.

   Now I want an upperhalf bone slice of dimensions (20cm,10cm,1cm) at the 2cm position and a lowerhalf water sensitive of the same dimensions right underneath that upperhalf bone. But there are times that the bonedetector cannot record the proton hit at that 2cm position. 

   What should I do?
Thanks,
Kent

   Attachment:
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2009/02/26/19.59-76998-c_DetectorConstruction.cc
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2009/02/26/19.59-3668-P_code_src_EventAction.cc
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2009/02/26/20.08-58698-_code_src_BoneDetector.cc

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