Title :
Effects of construction and alignment errors on the orbit functions of the Advanced Photon Source Storage Ring
Author :
Bizek, H. ; Crosbie, E. ; Lessner, E. ; Teng, L. ; Wirsbinski, J.
Author_Institution :
Argonne Nat. Lab., IL, USA
Abstract :
The orbit functions for the Advanced Photon Source storage ring have been studied using the simulation code RACETRACK. Nonlinear elements are substituted into the storage ring lattice to simulate the effects of construction and alignment errors in the quadrupole, dipole, and sextupole magnets. The effects of these errors on the orbit distortion, dispersion, and beta functions are then graphically analyzed to show the RMS spread of the functions across several machines. The studies show that the most significant error is displacement of the quadrupole magnets. Further studies using a three-bump correction routine show that these errors can be corrected to acceptable levels.<>
Keywords :
X-ray production; electron accelerators; particle beam diagnostics; storage rings; synchrotron radiation; wigglers; APS; Advanced Photon Source Storage Ring; RACETRACK; RMS spread; alignment errors; beta functions; construction errors; dipole; orbit distortion; orbit functions; quadrupole; sextupole; simulation code; storage ring lattice; three-bump correction routine; Dispersion; Error correction; Laboratories; Lattices; Magnetic analysis; Magnets; Nonlinear distortion; Storage rings; Structural beams; Synchrotron radiation;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.165100
