Upgrade of the PEP - II Low Beta Optics 1
نویسنده
چکیده
The successful commissioning and operation of the PEP-II asymmetric ee collider motivated further studies to increase luminosity. In this paper, we discuss a modification of the PEP-II lattice to reduce the vertical beta function at the Interaction Point (IP) from the design value of β∗ y = 1.5cm to 1.0cm. This could potentially reduce the colliding beam size, increase the particle density at IP and the probability of beam-beam interactions. In this paper, we outline the optics modifications, discuss tracking simulations, and overview machine implementation. Presented at the 7th European Particle Accelerator Conference (EPAC 2000) Vienna, Austria, June 26–30, 2000 1Work supported by Department of Energy contract DE–AC03–76SF00515. UPGRADE OF THE PEP-II LOW BETA OPTICS Y. Nosochkov, M. Biagini, Y. Cai, F.-J. Decker, M.H.R. Donald, S. Ecklund, A. Fisher, W. Kozanecki P. Krejcik, A. Kulikov, M. Minty, I. Reichel, J. Seeman, M. Sullivan, U. Wienands, Y. Yan, SLAC, CA 94309, USA
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