Sept/Oct 2002 Feature Articles: Advanced 3D Tools Used in Reverse Engineering and Ray Tracing Simulation of Phased Array Inspection of Turbine Components with Complex Geometry - by Wence Daks, Charly Kovacshazy, Doug Mair, Petru Ciorau Technical Tips: Measurement of Residual Magnetic Fields - by Chris Coughlin Secrecy, Mystery and Simplicity of Characteristic Curves - by D.J. (Angus) Anderson Requirements Governing Approval Certificates Issued by the Competent State Authority for Radioactive Material, Radioactive Material Packaging and Radioactive Material Shipments