Title :
General overview of the APS low-level RF control system
Author :
Stepp, Jeffrey D. ; Bridges, James E.
Author_Institution :
Argonne Nat. Lab., IL, USA
Abstract :
This paper describes the proposed low-level RF system of the positron accumulator ring (PAR), the injector synchrotron, and the storage ring of the 7-GeV Advanced Photon Source. Four RF systems are described since the PAR consists of a fundamental frequency system at 9.8 MHz and a harmonic system at 117 MHz. A block diagram of an accelerating unit is shown and descriptions of various control loops are made (including amplitude control, phase control, and cavity tuning control). Also, a brief overview of the computer interface is given
Keywords :
computerised control; electron accelerators; phase control; physical instrumentation control; physics computing; storage rings; synchrotrons; 117 MHz; 7 GeV; 9.8 MHz; APS low-level RF control system; Advanced Photon Source; amplitude control; cavity tuning control; control loops; fundamental frequency system; harmonic system; injector synchrotron; phase control; positron accumulator ring; storage ring; Acceleration; Control systems; Linear particle accelerator; Peak to average power ratio; Power amplifiers; Power system harmonics; Radio frequency; Radiofrequency amplifiers; Tuning; Voltage control;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.308658
