1. University of Dayton Research Institute, Dayton, Ohio 45430, USA
2. Air Force Research Laboratory, Wright Patterson AFB, Ohio 45433, USA
3. Physics Department, Wright State University, Dayton, Ohio 45432, USA
4. US CCDC Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, USA
5. New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, USA