diff -u -r1.14 -r1.15
--- DetectorConverter.java	2 May 2007 23:46:10 -0000	1.14
+++ DetectorConverter.java	8 May 2007 00:53:30 -0000	1.15
@@ -138,8 +138,8 @@

 			if ( cnv != null )
 			{                
                 // Build the IdentifierDictionary for this Subdetector.

-                // Subdetector converters need this to be done first.
-                IIdentifierDictionary iddict = createIdentifierDictionary( subdet );

+                // Subdetector converters may need this to be done first.
+			    IIdentifierDictionary iddict = createIdentifierDictionary( subdet );

                 
                 // Convert from a compact type to the generic detector description
                 // using a registered converter.

@@ -165,7 +165,7 @@

      * 
      * @param subdet The Subdetector.
      */

-    private IIdentifierDictionary createIdentifierDictionary(Subdetector subdet)

+    protected static IIdentifierDictionary createIdentifierDictionary(Subdetector subdet)

     {
         Readout ro = subdet.getReadout();
         IIdentifierDictionary iddict=null;

diff -u -r1.3 -r1.4
--- ISubdetectorConverter.java	5 Apr 2007 23:24:21 -0000	1.3
+++ ISubdetectorConverter.java	8 May 2007 00:53:30 -0000	1.4
@@ -3,9 +3,6 @@

 import org.lcsim.geometry.compact.Detector;
 import org.lcsim.geometry.compact.Subdetector;
 

-//import org.lcsim.geometry.Detector;
-//import org.lcsim.geometry.Subdetector;
-

 public interface ISubdetectorConverter
 {
 	public void convert(Subdetector subdet, Detector detector);

diff -u -r1.10 -r1.11
--- SiTrackerBarrelConverter.java	8 May 2007 00:30:59 -0000	1.10
+++ SiTrackerBarrelConverter.java	8 May 2007 00:53:30 -0000	1.11
@@ -21,6 +21,9 @@

 import org.lcsim.detector.Transform3D;
 import org.lcsim.detector.identifier.ExpandedIdentifier;
 import org.lcsim.detector.identifier.IIdentifier;

+import org.lcsim.detector.identifier.IIdentifierDictionary;
+import org.lcsim.detector.identifier.IdentifierDictionaryManager;
+import org.lcsim.detector.identifier.IdentifierUtil;

 import org.lcsim.detector.material.IMaterial;
 import org.lcsim.detector.material.MaterialStore;
 import org.lcsim.detector.solids.Box;

@@ -502,8 +505,13 @@

                         // sensor
                         expId.addValue(sensorId);
                         

-                        // Create the package id.
-                        IIdentifier id = subdet.getDetectorElement().getIdentifierHelper().pack( expId );

+                        // Get the identifier dictionary.  (Subdetector doesn't have this ref yet.)
+                        IIdentifierDictionary iddict = 
+                            IdentifierDictionaryManager.getInstance().
+                            getIdentifierDictionary( subdet.getReadout().getName() );
+                        
+                        // Create the packed id using util method.  (No IdentifierHelper made yet.)
+                        IIdentifier id = IdentifierUtil.pack( expId, iddict );

                         
                         //System.out.println(pv.getName() + " is sens");
                         //System.out.println("path : " + modulePath.toString() + "/" + pv.getName());