Accelerator modeling at SPEAR

Author

Leblanc, G. ; Corbett, W.J.

Author_Institution

MAX-Lab., Lund, Sweden

Volume

1

fYear

1997

fDate

12-16 May 1997

Firstpage

342

Abstract

The response matrix, consisting of the closed orbit change at each beam position monitor (BPM) due to corrector magnet excitations, was measured and analyzed in order to calibrate a linear optics model of SPEAR. The model calibration was accomplished by varying model parameters to minimize the chi-square difference between the measured and the model response matrices. The singular value decomposition (SVD) matrix inversion method was used to solve the simultaneous equations. The calibrated model was then used to calculate corrections to the operational lattice. The results of the calibration and correction procedures are presented

Keywords

electron accelerators; electron optics; matrix inversion; particle beam dynamics; singular value decomposition; storage rings; SPEAR; beam position monitor; calibration; chi-square difference; closed orbit change; correction procedures; corrector magnet excitations; linear optics model; model response matrices; operational lattice; response matrix; singular value decomposition matrix inversion method; Calibration; Dispersion; Energy measurement; Extraterrestrial measurements; Lattices; Matrix decomposition; Noise level; Noise measurement; Predictive models; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1997. Proceedings of the 1997

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-4376-X

Type

conf

DOI

10.1109/PAC.1997.749636

Filename

749636