CylindricalEndcapCalorimeter: Fixed factors of 2 in layer/slice thickness

DDDetectors/src/CylindricalEndcapCalorimeter_geo.cpp

@@ -47,14 +47,14 @@ static Ref_t create_detector(Detector& description, xml_h e, SensitiveDetector s
     for(int i=0, im=0, repeat=x_layer.repeat(); i<repeat; ++i)  {
       double     zlayer = z;
       string     layer_name = det_name + _toString(layer_num,"_layer%d");
-      Volume     layer_vol(layer_name,Tube(rmin,rmax,layerWidth),air);
+      Volume     layer_vol(layer_name,Tube(rmin,rmax,layerWidth * 0.5),air);
 
       for(xml_coll_t l(x_layer,_U(slice)); l; ++l, ++im)  {
         xml_comp_t x_slice = l;
         double     w = x_slice.thickness();
         string     slice_name = layer_name + _toString(m+1,"slice%d");
         Material   slice_mat  = description.material(x_slice.materialStr());
-        Volume     slice_vol (slice_name,Tube(rmin,rmax,w),slice_mat);
+        Volume     slice_vol (slice_name,Tube(rmin,rmax,w * 0.5),slice_mat);
 
         if ( x_slice.isSensitive() )  {
           sens.setType("calorimeter");