SLC Positron Damping Ring Optics Design
The basic SLAC Linear Collider operation scheme assumes the use of two damping rings, one for the e/sup -/, one for the e/sup +/, in order to reduce the colliding beam normalized emittances to 30 ..pi.. ..mu..radm hence raising the corresponding luminosity by a factor 170. The e/sup -/ damping ring optics, designed by H. Wiedemann, has been extensively studied and modelled since it's completion at the end of 1982. The e/sup +/ damping ring being built will be based on the same design except for some modifications resulting from the studies on the e/sup -/ damping ring which clearly pointed out two major weak points as far as the optics is concerned. The present paper describes the basic modifications of the ring lattice and main equipment positions in order to improve the situation in the Positron Damping Ring. 16 refs., 2 figs., 1 tab.