Ph.D. Rice University, Atomic Physics, 1987

B.S. Harvey Mudd College, Physics, 1982

Atomic collision, optical, and plasma physics generally applied to plasma devices including Hall and similar crossed-field devices, also including ion thrusters and micro-field-emitter thrusters of various types. Energetic ion encounters with surfaces including laboratory and planetary, sputtering, signatures. Optical observations and spectroscopy of thrusters. Laboratory and flight diagnostic subsystems, experiment and instrument design, operation of instruments and analysis of instrument data to inform future integration of Hall thrusters.

• Propulsion Systems  | Electric/Chemical In-Space Propulsion
• Propulsion Systems  | Micro In-Space Propulsion
• Propulsion Systems  | Novel In-Space Propulsion Technologies
• Planetary Science  | Planetary Defense

2000-present Technologist, Electric Propulsion Group, JPL

1989-2000 Researcher and Systems Engineer, Space Test Program, The Aerospace Corporation

1987-1989 Post-doc, atomic collision physics and student mentoring, Rice University

2011-2024 Volunteer Rasopathies Network USA (https://rasopathiesnet.org)

2005-2011 School and District Oversight Committees, Pasadena Unified School District

~75 refereed and conference papers