Title :
Orbit correction in the LNLS UVX electron storage ring
Author :
Franco, J.G.S. ; Jahnel, L. ; Lin, Liu ; Scorzato, C. ; Tavares, P.F.
Author_Institution :
LNLS, Campinas, Brazil
Abstract :
The orbit measurement and correction system of the LNLS synchrotron light source is presented. Recent changes to the system including the addition of 12 vertical correctors and the use of 16 bit DACs to control the corrector magnet power supplies have improved the vertical orbit repeatability from fill to fill from ±70 μm to ±3 μm. The improved resolution also allowed the implementation of automatic orbit corrections at 24 second intervals, thus reducing orbit variations along a user´s shift from ±70 μm to ±5 μm
Keywords :
digital-analogue conversion; electron accelerators; particle beam diagnostics; power supplies to apparatus; storage rings; DAC; LNLS; corrector magnet power supplies; electron storage ring; orbit correction system; orbit measurement system; synchrotron light source; vertical correctors; vertical orbit repeatability; Control systems; Electrons; Extraterrestrial measurements; Light sources; Position measurement; Radio frequency; Signal resolution; Stability; Storage rings; Synchrotrons;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.792711
