Title :
RF control system for ISAC II superconducting cavities
Author :
Fong, K. ; Fang, S. ; Laverty, M. ; Zheng, Q.
Author_Institution :
TRIUMF, Vancouver, BC, Canada
Abstract :
The RF control system for the superconducting cavities of the ISAC II project is a hybrid analogue/digital system. Each system consists of a self-excited feedback loop with phase-locked loops for phase and frequency stabilization. Amplitude and phase regulation, as well as tuning control, are performed using digital signal processors. Special pulsing circuitry is incorporated into the system for fast punching through multipactoring. This paper describes the RF control system, the characteristics of the feedback loops, and the experience gained in operating this system.
Keywords :
accelerator RF systems; accelerator cavities; accelerator control systems; ion accelerators; particle beam dynamics; particle beam stability; superconducting cavity resonators; ISAC II project; ISAC II superconducting cavities; RF control system; amplitude regulation; digital signal processors; frequency stabilization; hybrid analogue/digital system; multipactoring; phase regulation; phase stabilization; phase-locked loops; self-excited feedback loop; special pulsing circuitry; tuning control; Control systems; Detectors; Digital signal processing; Feedback loop; Hardware; Phase detection; Phase locked loops; Radio frequency; Tuning; Voltage;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1289720
