DOE OSTI · 1903302
Magnetron R&D Progress for High Efficiency CW RF Sources of Industrial Accelerators
Abstract
After the demonstration of using high efficiency magnetron power to combine and aim to drive a radio frequency accelerator at 2450MHz in CW mode [1], we have used trim coils adding to a water-cooled magnetron and three amplitude modulation methods in an open-loop control to further suppress the 120Hz side-band noise to -46.7dBc level. We have also successfully demonstrated the phase-locking to an industrial grade cooking magnetron transmitter at 915MHz with a 75kW CW power delivered to a water load by using a -26.6dBc injection signal. The sideband noise at 360Hz from the 3-Phase SCRs DC power supply can be reduced to -16.2dBc level. Their power combing scheme and higher power application to industrial accelerators are foreseeing.
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Wang, H., Jordan, K., Nelson, R. M., Overstreet, S. A., Rimmer, R. A., Blum, J. N., Coriton, B. R., Moeller, C. P., Thackston, K. A., Vega, J. L., Ziemyte, G.. 2022-08-01. Magnetron R&D Progress for High Efficiency CW RF Sources of Industrial Accelerators. https://doi.org/10.18429/jacow-napac2022-wezd3
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