diff -N Constants.java
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ Constants.java	20 Aug 2005 19:13:22 -0000	1.1
@@ -0,0 +1,12 @@

+package org.lcsim.constants;
+
+/**
+ *
+ * @author tonyj
+ * @version $Id: Constants.java,v 1.1 2005/08/20 19:13:22 tonyj Exp $
+ */
+public interface Constants
+{
+   /** Constant for converting from radius to PT, e.g.  double radius = iq * pt/b*fieldConversion; **/
+   public static final double fieldConversion = 0.299792458 / 1000; // mm
+}