Active Mitigation of Multipaction Discharge Using Magnetic Isolation Technique Navy SBIR FY2010.2 Sol No.: Navy SBIR FY2010.2 Topic No.: N102-190 Topic Title: Active Mitigation of Multipaction Discharge Using Magnetic Isolation Technique Proposal No.: N102-190-1418 Firm: RadiaBeam Technologies, LLC 1717 Stewart Street Santa Monica, California 90404 Contact: Alex Murokh Phone: (310) 822-5845 Web Site: www.radiabeam.com Abstract: Multipaction is one of the most significant limiting factors to the dynamic range and utility of the vacuum-based radio frequency (RF) devices. If not mitigated, multipaction leads to operational impairments or even permanent damage to the exposed components. RadiaBeam Technologies proposes to utilize a magnetic isolation approach to reduce or eliminate multipaction in critical system components. This approach is based on the recent work at Brookhaven National Laboratory and Fermilab to reduce multipaction by applying a tangential magnetic field to the RF surface, thus forcing the emitted electrons to return to the surface before gaining enough energy to stimulate emission of secondary electrons. Benefits: An active multipaction mitigation technique based on magnetic isolation developed in this project has dual applications: space borne RF communication equipment, and RF accelerator cavities and high power components utilized in research and industry. Both markets present viable commercial opportunities, and also represent important areas of future technological growth. Return