Title :
First results with a nonlinear digital, orbit feedback system at the NSLS
Author :
Bozoki, Eva ; Friedman, Aharon ; Ramamoorthy, Susila
Author_Institution :
Nat. Synchrotron Light Source, Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
We report on the first experimental results with a nonlinear digital orbit feedback system for the NSLS X-ray ring. The system uses the existing RF receivers and orbit corrector magnets (trims) as well as parts of the NSLS control components. The orbit measurement micro was upgraded to a Motorola 68040 CPU in order to achieve the necessary data rate. Filtering and orbit correction calculations are done in a dedicated HP 742 rt micro. The system operates at a 555 Hz data rate, and achieves a bandwidth of 15-20 Hz
Keywords :
accelerator control systems; beam handling techniques; electron accelerators; feedback; particle beam diagnostics; particle beam stability; storage rings; 15 to 20 Hz; 555 Hz; HP 742 rt micro; Motorola 68040 CPU; NSLS X-ray ring; NSLS control components; RF receivers; filtering; nonlinear digital orbit feedback system; orbit correction calculations; orbit corrector magnets; orbit measurement micro; trims; Band pass filters; Bandwidth; Feedback loop; Filtering; Hardware; Light sources; Low pass filters; Orbital calculations; Sampling methods; Synchrotrons;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505663
