Import Geant4 11.0.1 source tree

source/physics_lists/constructors/electromagnetic/History

@@ -13,6 +13,12 @@ introduced in the code and keeptrack of all tags.
      * Reverse chronological order (last date on top), please *
      ----------------------------------------------------------
 
+11 December 2021, V.Ivanchenko (phys-ctor-em-V10-07-24)
+- G4EmStandardPhysics_option3 - use options providing more accurate 
+    simulation without loss of CPU performance: RangeFactor=0.03,
+    and SafetyPlus step limitation instead of DistanceToBoundary,
+    which significantly improving fanoCavity results
+
 12 November 2021, V.Ivanchenko (phys-ctor-em-V10-07-23)
 - G4EmStandardPhysicsWVI - making this experimantal configuration 
     compatible for CPU performance with Opt3 (it was similar to SS)

source/physics_lists/constructors/electromagnetic/src/G4EmStandardPhysics_option3.cc

@@ -112,7 +112,8 @@ G4EmStandardPhysics_option3::G4EmStandardPhysics_option3(G4int ver,
   param->SetStepFunctionMuHad(0.2, 50*CLHEP::um);
   param->SetStepFunctionLightIons(0.1, 20*CLHEP::um);
   param->SetStepFunctionIons(0.1, 1*CLHEP::um);
-  param->SetMscStepLimitType(fUseDistanceToBoundary);
+  param->SetMscStepLimitType(fUseSafetyPlus);
+  param->SetMscRangeFactor(0.03);
   param->SetMuHadLateralDisplacement(true);
   param->SetLateralDisplacementAlg96(true);
   param->SetUseICRU90Data(true);