Title :
Robustness of resonance free lattices against gradient errors
Author :
Schmidt, F. ; Verdier, A. ; Kaltchev, D.
Author_Institution :
SL Div., CERN, Geneva, Switzerland
Abstract :
Resonance-free lattices make it possible to cancel the effect of nonlinear resonances due to systematic multipoles in an alternating gradient circular machine. These lattices, are made of identical cells with specified phase advances. It is therefore mandatory to examine to what extent the property remains valid in presence of gradient errors. In the case of LHC, three times the nominal gradient errors are acceptable from the point of view of both a3 and b4 components
Keywords :
colliding beam accelerators; particle beam dynamics; proton accelerators; storage rings; LHC; a3 component; alternating gradient circular machine; b4 component; gradient errors; multipoles; nonlinear resonances; resonance free lattices; Energy measurement; Frequency measurement; Large Hadron Collider; Lattices; Nonlinear optics; Optical device fabrication; Radio frequency; Resonance; Robustness; Uncertainty;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.987150
