Methods of Phase and Power Control in Magnetron Transmitters for Superconducting Accelerators

Grigory Kazakevich, Rolland Johnson, Valeri Lebedev, Michael Neubauer, Warren Schappert, Vyacheslav Yakovlev, Lindroos, Mats (Ed.), Schaa, Volker RW (Ed.), Arduini, Gianluigi (Ed.), Pranke, Juliana (Ed.), Seidel, Mike (Ed.)
Various methods of phase and power control in magnetron RF sources of superconducting accelerators intended for ADS-class projects were recently developed and studied with conventional 2.45 GHz, 1 kW, CW magnetrons operating in pulsed and CW regimes. Magnetron trans-mitters excited by a resonant (injection-locking) phase-modulated signal can provide phase and power control with the rates required for precise stabilization of phase and amplitude of the accelerating field in Superconducting RF
more » ... perconducting RF (SRF) cavities of the intensity-frontier accelerators. An innovative technique that can significantly increase the magnetron transmitter efficiency at the wide-range power control required for superconducting accelerators was developed and verified with the 2.45 GHz magnetrons operating in CW and pulsed regimes. High efficiency magnetron transmitters of this type can significantly reduce the capital and operation costs of the ADS-class accelerator projects.
doi:10.18429/jacow-ipac2017-thpik122 fatcat:m2aeio4z3jfo5bk3hysrzrquae