Title :
Study of possible energy upgrade for the ALS and modeling of the “real lattice” for the diagnosis of lattice problems
Author :
Meddahi, M. ; Bengtsson, J.
Author_Institution :
Lawrence Berkeley Lab., California Univ., Berkeley, CA, USA
Abstract :
We have studied the change of expected performance of the Advanced Light Source storage ring at LBL for the (design) nominal and maximum energy of 1.5 and 1.9 GeV respectively. Furthermore, we have also studied a possible increase to 2.3 GeV by modeling the change of dynamical aperture caused by saturation of the magnets. Independently, we have also modeled the beam´s trajectory at injection. Comparison with bpm data from early storage ring commissioning led to the diagnosis of a major lattice error due to a short in a quadrupole, which was rectified leading to stored beam of 60 turns
Keywords :
beam handling techniques; particle beam diagnostics; storage rings; 1.5 GeV; 1.9 GeV; 2.3 GeV; ALS; Advanced Light Source; beam trajectory; dynamical aperture; energy upgrade; injection; lattice; quadrupole; Apertures; Current measurement; Cyclotrons; Energy measurement; Laboratories; Lattices; Light sources; Magnets; Resonance; Storage rings;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.309636
