RF control system for ISAC II superconducting cavities

Author

Fong, K. ; Fang, S. ; Laverty, M. ; Zheng, Q.

Author_Institution

TRIUMF, Vancouver, BC, Canada

Volume

2

fYear

2003

fDate

12-16 May 2003

Firstpage

1404

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1289720

Filename

1289720