1. Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375, USA
2. Berkeley Research Associates, 6551 Mid Cities Avenue, Beltsville, Maryland 20705, USA
3. Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
4. Engility Corporation, Chantilly, Virginia 20151, USA
5. Lawrence Livermore National Lab, Livermore, California 94551, USA