Import Geant4 4.1.0 source tree

2016-06-08 16:39:52 +02:00
parent 921d3b1cda
commit 330b82b769
4524 changed files with 178689 additions and 43575 deletions
@@ -0,0 +1,62 @@
+//
+// ********************************************************************
+// * DISCLAIMER                                                       *
+// *                                                                  *
+// * The following disclaimer summarizes all the specific disclaimers *
+// * of contributors to this software. The specific disclaimers,which *
+// * govern, are listed with their locations in:                      *
+// *   http://cern.ch/geant4/license                                  *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.                                                             *
+// *                                                                  *
+// * This  code  implementation is the  intellectual property  of the *
+// * GEANT4 collaboration.                                            *
+// * By copying,  distributing  or modifying the Program (or any work *
+// * based  on  the Program)  you indicate  your  acceptance of  this *
+// * statement, and all its terms.                                    *
+// ********************************************************************
+//
+//
+// $Id: G4VImportanceAlgorithm.hh,v 1.3 2002/04/10 13:13:07 dressel Exp $
+// GEANT4 tag $Name: geant4-04-01 $
+//
+// ----------------------------------------------------------------------
+// Class G4VImportanceAlgorithm
+//
+// Class description:
+//
+// This is an interface used by importance sampling to get the 
+// number of copies and weight a mother particle should be split 
+// into when crossing a boundary of "importance cells". 
+// The interface defines the input to be the ratio of the pre over
+// the post importance and the weight of the mother track.
+// It returns a struct containing the number of copies (including 
+// the mother track) to be produced and the weight of each track.
+// A user defined algorithm deriving from this interface may be used
+// by the importance sampling.
+
+// Author: Michael Dressel (Michael.Dressel@cern.ch)
+// ----------------------------------------------------------------------
+#ifndef G4VImportanceAlgorithm_hh
+#define G4VImportanceAlgorithm_hh G4VImportanceAlgorithm_hh 
+
+#include "G4Nsplit_Weight.hh"
+
+class G4VImportanceAlgorithm
+{
+
+public:  // with description
+
+  virtual ~G4VImportanceAlgorithm(){}
+  virtual G4Nsplit_Weight Calculate(G4double ipre_over_ipost,
+                                    G4double init_w) const = 0;
+    // calculate the number of tracks and their weight according 
+    // to the ratio of pre over post importance and the weight of
+    // the mother track.
+};
+
+#endif