Title :
The phase servo tuner control system of the ALS 500 MHz cavity
Author :
Lo, C.C. ; Taylor, Brian
Author_Institution :
Lawrence Berkeley Lab., CA, USA
Abstract :
Three 500 MHz cavities are used in the booster and storage ring of the Advanced Light Source (ALS). Due to different varying parameters, a control system is required to keep the cavities in tune during operation. The tuning of the 500 MHz cavity is achieved by detecting the phase error between the drive signal and the cavity probe signal. The error signal is amplified and used to drive a stepping motor which in turn moves a metallic cylinder in or out of the cavity to achieve tuning
Keywords :
cavity resonators; electron accelerators; physical instrumentation control; stepping motors; storage rings; tuning; 500 MHz; 500 MHz cavity; ALS; Advanced Light Source; phase error; phase servo tuner control system; stepping motor; Control systems; Detectors; Engine cylinders; Phase detection; RF signals; Servomechanisms; Servomotors; Storage rings; Switches; Tuners;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.309041
