The Damping Ring for Novosibirsk /spl Phi/- and B-factories

The Damping Ring is designed to provide accumulation, cooling and extraction of electron and positron beams at an energy of 510 MeV with a particle production rate of 2/spl times/10/sup 10/ per second for injection into the /spl Phi/-factory and (after additional acceleration) into the B-factory. The lattice consists of four symmetrical quadrants. The magnetic field polarity does not change by changing the particle type. To provide a short bunch length (/spl sigmaspl sime/5 mm) two warm cavities of 800 kV total RF voltage are used. The single turn injection scheme with orbit bump and horizontal kick is used. The general parameters and features of the Damping Ring are presented. The state of ring design and construction is discussed. >