Slow Orbit Feedback at the ALS Using Matlab
Abstract
The third generation Advanced Light Source (ALS) produces extremely bright and finely focused photon beams using undulatory, wigglers, and bend magnets. In order to position the photon beams accurately, a slow global orbit feedback system has been developed. The dominant causes of orbit motion at the ALS are temperature variation and insertion device motion. This type of motion can be removed using slow global orbit feedback with a data rate of a few Hertz. The remaining orbit motion in the ALS is only 1-3 micron rms. Slow orbit feedback does not require high computational throughput. At the ALS, the global orbit feedback algorithm, based on the singular valued decomposition method, is coded in MATLAB and runs on a control room workstation. Using the MATLAB environment to develop, test, and run the storage ring control algorithms has proven to be a fast and efficient way to operate the ALS.
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (US)
- OSTI Identifier:
- 7377
- Report Number(s):
- LBNL-43030
TRN: US0406709
- DOE Contract Number:
- AC03-76SF00098
- Resource Type:
- Conference
- Resource Relation:
- Conference: 1999 Particle Accelerator Conference, New York, NY (US), 03/29/1999--04/02/1999; Other Information: PBD: 25 Mar 1999
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; ACCELERATORS; ADVANCED LIGHT SOURCE; ALGORITHMS; CONTROL ROOMS; FEEDBACK; MAGNETS; PHOTON BEAMS; STORAGE RINGS
Citation Formats
Portmann, G. Slow Orbit Feedback at the ALS Using Matlab. United States: N. p., 1999.
Web.
Portmann, G. Slow Orbit Feedback at the ALS Using Matlab. United States.
Portmann, G. 1999.
"Slow Orbit Feedback at the ALS Using Matlab". United States. https://www.osti.gov/servlets/purl/7377.
@article{osti_7377,
title = {Slow Orbit Feedback at the ALS Using Matlab},
author = {Portmann, G},
abstractNote = {The third generation Advanced Light Source (ALS) produces extremely bright and finely focused photon beams using undulatory, wigglers, and bend magnets. In order to position the photon beams accurately, a slow global orbit feedback system has been developed. The dominant causes of orbit motion at the ALS are temperature variation and insertion device motion. This type of motion can be removed using slow global orbit feedback with a data rate of a few Hertz. The remaining orbit motion in the ALS is only 1-3 micron rms. Slow orbit feedback does not require high computational throughput. At the ALS, the global orbit feedback algorithm, based on the singular valued decomposition method, is coded in MATLAB and runs on a control room workstation. Using the MATLAB environment to develop, test, and run the storage ring control algorithms has proven to be a fast and efficient way to operate the ALS.},
doi = {},
url = {https://www.osti.gov/biblio/7377},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Mar 25 00:00:00 EST 1999},
month = {Thu Mar 25 00:00:00 EST 1999}
}