Active Mitigation of Multipaction Discharge Using Magnetic Isolation Technique

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.