ACCELERATOR ACTIVITIES AT BUDKER INSTITUTE FOR NUCLEAR PHYSICS

Development of different kind of accelerator technologies is a base of the Novosibirsk Institute physical program. This talk gives a brief overview of a status and upgrade plans of the existing colliders VEPP-2M and VEPP-4 to-gether with design and construction of the future and Tau/Charm factories. Last achievements in the linear col-lider, free electron laser, electron cooling and polarized beams are presented. 1 COLLIDING BEAMS. At the present moment two e+e−-machines are in opera-tion in our Institute. 1.1 VEPP-2M collider, which can be considered as the world first electron-positron pre-Factory, started to operate for ex-periments at 1975. The energy range of this machine is the lowest in the world (150 − 700MeV). But up to now, through all these long years, VEPP-2M remains with its luminosity (5 1030cm−2sec−1 on -meson resonance) the main (practically the only) supplier of electron-positron physics results in this energy range [2], with several conse-quent steps in accelerator and detector upgrades, includ-ing construction of special more effective booster BEP. It is worth to pay special attention to the 8 Tesla supercon-ducting wiggler magnet installed at VEPP-2M [3], which is in use for about 15 years to increase the radial emittance and the radiation decrements for luminosity enhancement and for suppression of intra-beam scattering