Author :
Allen, M.A. ; Davies-White, W. ; Dean, N. ; Fischer, G.E. ; Harris, J. ; Karvonen, L. ; Lee, M.J. ; McConnell, R. ; Melen, R. ; Morton, P.L. ; Paterson, J.M. ; Richter, B. ; Sabersky, A.P. ; Taylor, T. ; Wilson, P. ; Bennett, R. ; Humphrey, B. ; Chao, A.
Abstract :
The single beam and colliding beam performance of the SLAC electron-positron storage ring SPEAR II is described. The sevenfold increase in harmonic number in SPEAR II in comparison to SPEAR I has made significant changes in single beam behavior. Strong synchrobetatron resonances and a new transverse instability are observed and our first studies of these phenomena are described, Measurements on current dependent bunch lengthening are presented.
