fixes

src/DetectorConstruction.cc

@@ -251,6 +251,7 @@ G4VPhysicalVolume* DetectorConstruction::DefineVolumes()
       layer.assignPhysicalVolume(ppv); //maybe this needs to be ppv - check
 
       // assign sensors to layer by copyNumber; access the copyNumber of the volumes
+      
       if(layer.isActive){
          for(int i = 0; i < layer.nx*layer.ny; i++){
              Sensor sensor;
@@ -263,6 +264,7 @@ G4VPhysicalVolume* DetectorConstruction::DefineVolumes()
       }
 
       position += layer.thickness / 2 *cm; //assign the physical volume to the layer
+
   }
   //
   // Visualization attributes

src/SystemBuilder.cc

@@ -59,10 +59,10 @@ void SystemBuilder::run_gui(){
   }
 }
 
-void SystemBuilder::run_batch(int nEvents, std::string partSpecies, double minEnergy, double maxEnergy){
-    G4String partSpec = (G4String)partSpecies;
+void SystemBuilder::run_batch(int nEvents, char* partSpecies, double minEnergy, double maxEnergy){
+    G4String partSpec = partSpecies;
     G4cout << "running with particle species " << partSpec << G4endl;
     actionInitialization->setGeneratorProperties(minEnergy, maxEnergy, partSpec);
     UImanager->ApplyCommand("/run/initialize");
     runManager->BeamOn(nEvents);
-}
+}