DocumentCode :
1867621
Title :
Low Energy Ring lattice of the PEP-II asymmetric B-factory
Author :
Cai, Y. ; Donald, M. ; Helm, R. ; Irwin, J. ; Nosochkov, Y. ; Ritson, D.M. ; Yan, Y. ; Forest, E. ; Zholents, A.
Author_Institution :
Stanford Linear Accel. Center, Stanford Univ., CA, USA
Volume :
1
fYear :
1995
fDate :
1-5 May 1995
Firstpage :
576
Abstract :
Developing a lattice that contains a very low beta value at the interaction point (IP) and has adequate dynamic aperture is one of the major challenges in designing the PEP-II asymmetric B-factory. For the Low Energy Ring (LER) we have studied several different chromatic correction schemes since the conceptual design report (CDR). Based on these studies, a hybrid solution with local and semi-local chromatic sextupoles has been selected as the new baseline lattice to replace the local scheme in the CDR. The new design simplifies the interaction region (IR) and reduces the number of sextupoles in the arcs. Arc sextupoles are paired at π phase difference and are not interleaved. In this paper we describe the baseline lattice with the emphasis on the lattice changes made since the CDR
Keywords :
accelerator magnets; beam handling techniques; colliding beam accelerators; electromagnets; electron accelerators; electron optics; storage rings; LER; Low Energy Ring lattice; PEP-II asymmetric B-factory; arc sextupoles; baseline lattice; chromatic correction schemes; conceptual design report; dynamic aperture; hybrid solution; interaction point; local chromatic sextupoles; semilocal chromatic sextupoles; very low beta value; Apertures; Cyclotrons; Laboratories; Lattices; Linear accelerators; Magnets; Positrons; Production facilities; Radio frequency; Storage rings;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
Type :
conf
DOI :
10.1109/PAC.1995.504724
Filename :
504724
Link To Document :
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