diff --git a/Detector/DetCRD/compact/CRD_common_v01/DC_Simple_v01_01.xml b/Detector/DetCRD/compact/CRD_common_v01/DC_Simple_v01_01.xml
index 3b843fc94fe3ce620f80727b73373a3353d259eb..2ad73a4026ac7491985e2e8970b0156e1fe5e5fc 100644
--- a/Detector/DetCRD/compact/CRD_common_v01/DC_Simple_v01_01.xml
+++ b/Detector/DetCRD/compact/CRD_common_v01/DC_Simple_v01_01.xml
@@ -39,6 +39,15 @@
         </shape>
       </envelope>
 
+      <module id="0" repeat="1" name="SignalWire" type="Tube" rmin="0*mm" rmax="0.01*mm">
+           <tubs name="W" type="Tube" rmin="0*mm" rmax="0.007*mm" material="Tungsten"/>
+           <tubs name="Au" type="Tube" rmin="0.007*mm" rmax="0.01*mm" material="Gold"/>
+      </module>
+      <module id="1" repeat="3" name="FieldWire" type="Tube" rmin="0*mm" rmax="0.02*mm">
+         <tubs name="Al" type="Tube" rmin="0*mm" rmax="0.017*mm" material="Aluminum"/>
+         <tubs name="Ag" type="Tube" rmin="0.017*mm" rmax="0.02*mm" material="Silver"/>
+      </module>
+
       <type_flags type="DetType_TRACKER + DetType_BARREL + DetType_GASEOUS + DetType_WIRE"/>
 
       <!-- Use cm as unit if you want to use Pandora for reconstruction -->
diff --git a/Detector/DetDriftChamber/compact/det.xml b/Detector/DetDriftChamber/compact/det.xml
index ef069511f296d0965b2a5379fe1f27ad71e98ced..e1ca33b20d4abc21b28bd4eb8415586c2e6c40b1 100644
--- a/Detector/DetDriftChamber/compact/det.xml
+++ b/Detector/DetDriftChamber/compact/det.xml
@@ -22,8 +22,8 @@
     <constant name="world_z" value="world_size"/>
 
     <!-- SDT -->
-    <constant name="SDT_radius_min" value="235*mm"/>
-    <constant name="SDT_radius_max" value="1716*mm"/>
+    <constant name="SDT_radius_min" value="234*mm"/>
+    <constant name="SDT_radius_max" value="1720*mm"/>
     <constant name="SDT_half_length" value="2225*mm"/>
     <constant name="SDT_length" value="SDT_half_length*2"/>
 
@@ -32,7 +32,7 @@
     <constant name="SDT_inner_chamber_length" value="SDT_length"/>
 
     <constant name="SDT_outer_chamber_radius_min" value="1085*mm"/>
-    <constant name="SDT_outer_chamber_radius_max" value="SDT_radius_max"/>
+    <constant name="SDT_outer_chamber_radius_max" value="1715*mm"/>
     <constant name="SDT_outer_chamber_length" value="SDT_length"/>
 
     <constant name="SDT_inner_chamber_layer_number" value="67"/>
@@ -54,17 +54,17 @@
     <detector id="1" name="DriftChamber" type="DriftChamber" readout="DriftChamberHitsCollection" vis="VisibleBlue" sensitive="true">
       <envelope vis="SeeThrough">
         <shape type="BooleanShape" operation="Union" material="Air">
-          <shape type="Tube" rmin="SDT_inner_chamber_radius_min" rmax="SDT_inner_chamber_radius_max" dz="SDT_half_length" />
-          <shape type="Tube" rmin="SDT_outer_chamber_radius_min" rmax="SDT_outer_chamber_radius_max" dz="SDT_half_length" />
+          <shape type="Tube" rmin="SDT_radius_min" rmax="SDT_inner_chamber_radius_max" dz="SDT_half_length" />
+          <shape type="Tube" rmin="SDT_outer_chamber_radius_min" rmax="SDT_radius_max" dz="SDT_half_length" />
         </shape>
       </envelope>
 
-      <module id="0" repeat="1" name="SignalWire" type="Tube" rmin="0*mm" rmax="0.01*mm">
+      <module id="0" name="SignalWire" type="Tube" rmin="0*mm" rmax="0.01*mm" vis="VisibleRed">
           <tubs name="W" type="Tube" rmin="0*mm" rmax="0.007*mm" material="Tungsten"/>
           <tubs name="Au" type="Tube" rmin="0.007*mm" rmax="0.01*mm" material="Gold"/>
       </module>
 
-      <module id="1" repeat="3" name="FieldWire" type="Tube" rmin="0*mm" rmax="0.02*mm">
+      <module id="1" name="FieldWire" type="Tube" rmin="0*mm" rmax="0.02*mm" vis="VisibleGreen">
           <tubs name="Al" type="Tube" rmin="0*mm" rmax="0.017*mm" material="Aluminum"/>
           <tubs name="Ag" type="Tube" rmin="0.017*mm" rmax="0.02*mm" material="Silver"/>
       </module>