Title :
Precision Measurement of Coupling Ellipses Parameters in a Storage Ring
Author :
Yan, Y.T. ; Cai, Y.
Author_Institution :
SLAC, Stanford, CA 94309 USA, yan@slac.stanford.edu
Abstract :
Eigen-mode coupling ellipses’ tilt angles and axis ratios can be precisely measured with a Model-Independent Analysis (MIA) of the turn-by-turn Beam Position Monitor (BPM) data from resonance excitation of the betatron motion. For each BPM location one can measure 4 parameters from the two resonance excitation, which completely describe the linear coupling of the location. Results from application to PEP-II LER storage ring are presented.
Keywords :
Extraterrestrial measurements; Monitoring; Motion analysis; Motion measurement; Optical coupling; Orbits; Position measurement; Resonance; Solenoids; Storage rings;
Conference_Titel :
Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the
Print_ISBN :
0-7803-8859-3
DOI :
10.1109/PAC.2005.1591504
