4.3.2010 - Kamil Sedlak

1) UPGRADE TO GEANT 4.9.3
      - Physics list had been modified
      - List of the physics processes in *.mac has to be modified too!
        (otherwise results of 4.9.3 do not reproduce well the results
         of 4.9.2).
        Example *.mac files still use the old implementation of the physics
        processes, i.e. they have to be corrected in future!

   2) POSSIBILITY TO WRITE OUT DERIVATIVES OF THE MAGNETIC FIELD 
      AT A GIVEN POINT (see the documentation,
      "/musr/command globalfield printFieldDerivativeAtPoint".)

include/F04GlobalField.hh

@@ -141,9 +141,9 @@ public:
   //  G4bool DoesAnyFieldValueNeedsToBeChanged(G4int eventNumber) {return globalChangeFieldInStepsMap[eventNumber];}
   void CheckWhetherAnyNominalFieldValueNeedsToBeChanged(G4int eventNumber);
 
-  //  Add point, at which user wishes to print out the field value
+  //  Add point, at which user wishes to print out the field value or field derivative
   void AddPointForFieldTesting(G4ThreeVector point) {pointsAtWhichUserWantsToPrintFieldValue.push_back(point);}
-
+  void AddPointForFieldDerivativeTesting(G4ThreeVector point) {pointsAtWhichUserWantsToPrintFieldDerivative.push_back(point);}
   //  Print field value at all points user wished to be print out:
   void PrintFieldAtRequestedPoints() const;
 
@@ -164,6 +164,7 @@ private:
   const F04ElementField **fp;
 
   std::vector<G4ThreeVector> pointsAtWhichUserWantsToPrintFieldValue;
+  std::vector<G4ThreeVector> pointsAtWhichUserWantsToPrintFieldDerivative;
 
 private: