All Stories

  1. Sheath expansion effects on radio-frequency cathode operation with a noble gas

    Article • Plasma Sources Science and Technology, September 2026, Institute of Physics Publishing

    Michael McDonald

  2. High-speed Plasma Measurements with a Plasma Impedance Probe

    Article • January 2024, American Institute of Aeronautics and Astronautics (AIAA)

    Michael McDonald

  3. Initial Radical Oxygen Concentration Measurements Using Catalytic Probes in an RF Cathode

    Article • January 2024, American Institute of Aeronautics and Astronautics (AIAA)

    Michael McDonald

  4. High-speed plasma measurements with a plasma impedance probe

    Article • Review of Scientific Instruments, August 2023, American Institute of Physics

    Michael McDonald

  5. Thermal-field emission from cones and wires

    Article • Journal of Vacuum Science & Technology B Nanotechnology and Microelectronics Materials Processing Measurement and Phenomena, January 2022, American Vacuum Society

    Kevin Jensen, Michael McDonald

  6. Electron transport in multiple orifice hollow cathodes

    Article • Journal of Applied Physics, December 2021, American Institute of Physics

    Michael McDonald

  7. Experimental evaluation of the 2D non-classical ohmic transport model for electrons in the hollow cathode plume

    Article • Journal of Applied Physics, November 2021, American Institute of Physics

    Michael McDonald

  8. Polarity dependence of electrical breakdown in argon under a non-uniform electric field

    Article • Physics of Plasmas, September 2021, American Institute of Physics

    Michael McDonald

  9. Analytic model of a compound thermal-field emitter and its performance

    Article • Journal of Applied Physics, December 2019, American Institute of Physics

    Kevin Jensen, Michael McDonald

  10. Thermal-field and photoemission from meso- and micro-scale features: Effects of screening and roughness on characterization and simulation

    Article • Journal of Applied Physics, June 2019, American Institute of Physics

    Kevin Jensen, Michael McDonald

  11. Recent progress in research and development of hollow cathodes for electric propulsion

    Article • Reviews of Modern Plasma Physics, June 2019, Springer Science + Business Media

    Michael McDonald

  12. Note: Improved heater design for high-temperature hollow cathodes

    Article • Review of Scientific Instruments, February 2017, American Institute of Physics

    Michael McDonald

  13. Recommended Practice for Use of Emissive Probes in Electric Propulsion Testing

    Article • Journal of Propulsion and Power, November 2016, American Institute of Aeronautics and Astronautics (AIAA)

    Michael McDonald

  14. Performance Characterization of a Low Reynolds Number Micro-Nozzle Flo

    Article • July 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Michael McDonald

  15. Rotating Spoke Instabilities in Hall Thrusters

    Article • IEEE Transactions on Plasma Science, November 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Michael McDonald