PAC2013 - List of Authors (Kazakevich, G.M.)

Paper	Title	Page
WEPHO15	Modeling of Magnetron Transmitter for the Project X CW 1 GEV Linac	966
	G.M. Kazakevich, R.P. Johnson Muons, Inc, Illinois, USA B. Chase, R.J. Pasquinelli, V.P. Yakovlev Fermilab, Batavia, USA
	A 650 MHz 50 kW transmitter with a wide-band control in phase and power, based on injection-locked CW magnetrons, intended to drive individually Superconducting RF (SRF) cavities has been proposed for the Project X CW 1 GeV linac. Utilization of the magnetron RF sources for the intensity-frontier project will save a significant capital cost in comparison with traditional RF sources based on klystrons, Inductive Output Tubes (IOTs), solid-state amplifiers. The transmitter setup has been modelled experimentally and by simulation using 2.45 GHz CW magnetrons with output power up to 1 kW. The measurements and simulations performed with the injection-locked magnetrons demonstrated capability of the proposed transmitter concept to power individually the superconducting cavities suppressing parasitic modulation of the accelerating field caused by mechanical oscillation (microphonics and oscillations resulted from Lorentz-force), beam loading, dynamic tuning errors, and other low-frequency disturbances of the magnetron performance. Results of the experimental and theoretical modelling are analysed and discussed in this paper.

Paper

Title

Page

Modeling of Magnetron Transmitter for the Project X CW 1 GEV Linac

966

G.M. Kazakevich, R.P. Johnson
Muons, Inc, Illinois, USA
B. Chase, R.J. Pasquinelli, V.P. Yakovlev
Fermilab, Batavia, USA

A 650 MHz 50 kW transmitter with a wide-band control in phase and power, based on injection-locked CW magnetrons, intended to drive individually Superconducting RF (SRF) cavities has been proposed for the Project X CW 1 GeV linac. Utilization of the magnetron RF sources for the intensity-frontier project will save a significant capital cost in comparison with traditional RF sources based on klystrons, Inductive Output Tubes (IOTs), solid-state amplifiers. The transmitter setup has been modelled experimentally and by simulation using 2.45 GHz CW magnetrons with output power up to 1 kW. The measurements and simulations performed with the injection-locked magnetrons demonstrated capability of the proposed transmitter concept to power individually the superconducting cavities suppressing parasitic modulation of the accelerating field caused by mechanical oscillation (microphonics and oscillations resulted from Lorentz-force), beam loading, dynamic tuning errors, and other low-frequency disturbances of the magnetron performance. Results of the experimental and theoretical modelling are analysed and discussed in this paper.