diff -u -r1.1 -r1.2
--- compact.xml	20 Jun 2011 16:57:45 -0000	1.1
+++ compact.xml	7 Jul 2011 16:48:31 -0000	1.2
@@ -213,7 +213,7 @@

     </field>
   </fields>
   -->

-

+<!--

   <fields>
     <field type="Dipole" name="AnalyzingDipole"
             zmin="0*cm"

@@ -222,6 +222,21 @@

       <dipoleCoeff value="0.5"/>
     </field>
   </fields>

+  -->
+
+    <fields>
+    <field type="BoxDipole" name="AnalyzingDipole"
+            x="0*cm"
+            y="0*cm"
+            z="50*cm"
+            dx="10*cm"
+            dy="10*cm"
+            dz="51*cm"
+            bx="0.0"
+            by="-0.5"
+            bz="0.0">     
+    </field>
+  </fields>

 <!--
    <fields>
         <field type="Solenoid" name="GlobalSolenoid"

diff -u -r1.1 -r1.2
--- HPS-Test-JLAB-v2pt0.lcdd	20 Jun 2011 16:57:45 -0000	1.1
+++ HPS-Test-JLAB-v2pt0.lcdd	7 Jul 2011 16:48:31 -0000	1.2
@@ -2,7 +2,7 @@

 <lcdd xmlns:lcdd="http://www.lcsim.org/schemas/lcdd/1.0" xmlns:xs="http://www.w3.org/2001/XMLSchema-instance" xs:noNamespaceSchemaLocation="http://www.lcsim.org/schemas/lcdd/1.0/lcdd.xsd">
   <header>
     <detector name="HPS-Test-JLAB-v2pt0" />

-    <generator name="GeomConverter" version="1.0" file="/Users/mgraham/NetBeansProjects/hps-detectors/detectors/HPS-Test-JLAB-v2pt0/compact.xml" checksum="4086622871" />

+    <generator name="GeomConverter" version="1.0" file="/Users/mgraham/NetBeansProjects/hps-detectors/detectors/HPS-Test-JLAB-v2pt0/compact.xml" checksum="4289156419" />

     <author name="NONE" />
     <comment>Detector for a Dark Photon Search</comment>
   </header>

@@ -673,9 +673,7 @@

     </setup>
   </gdml>
   <fields>

-    <dipole name="AnalyzingDipole" lunit="mm" funit="tesla" zmax="1000.0" zmin="0.0" rmax="2000.0">
-      <dipole_coeff value="0.5" />
-    </dipole>

+    <box_dipole name="AnalyzingDipole" lunit="mm" funit="tesla" x="0.0" y="0.0" z="500.0" dx="100.0" dy="100.0" dz="510.0" bx="0.0" by="-0.5" bz="0.0" />

   </fields>
 </lcdd>