Lena Heffern¹, Ann Parsons², Richard D Starr³, Craig Hardgrove¹, Erik Johnson⁴, Graham J. Stoddard⁵, RIchard Blakeley⁴, Hugh Barnaby⁶ and Thomas H Prettyman⁷, (1)Arizona State University, Tempe, AZ, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)Catholic University of America, Washington, DC, United States, (4)Radiation Monitoring Devices Inc., Auburn, MA, United States, (5)Radiation Monitoring Devices, Inc., Watertown, MA, United States, (6)Arizona State University, Electrical Engineering, Tempe, AZ, United States, (7)Planetary Science Institute Albuquerque, Albuquerque, NM, United States