A Twisted Trapezoidal Shape for Geant4
A Twisted Trapezoidal Shape for Geant4
A Twisted Trapezoidal Shape for Geant4
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SurfaceChecker• Generate a randomparticle position P and arandom point X true on thesurface of the solid.• Ask G4 <strong>for</strong> theintersection point giventhe point P and itsdirection v (select theintersection closest to Xtrue).X reconst.X trueX reconst.The distance δ between X true andX reconst. gives us in<strong>for</strong>mationabout the goodness of thereconstruction.δv rPNov 2003 Oliver Link, EP-SFT 12