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

Volume

4

fYear

1995

fDate

1-5 May 1995

Firstpage

2696

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1995., Proceedings of the 1995

Conference_Location

Dallas, TX

Print_ISBN

0-7803-2934-1

Type

conf

DOI

10.1109/PAC.1995.505663

Filename

505663