The new station for optical observation of electron beam parameters at electron storage ring SIBERIA-2 is dedicated for measurement of transverse and longitudinal sizes of electron bunches with the use of synchrotron radiation (SR) visible spectrum in one-bunch and multibunch modes and for the study of individual electron bunches behavior in time in the conditions of changing accelerator parameters. The paper briefly describes the main components of the diagnostics and experimental results obtained with them. OPTICAL OBSERVATION STATION

A new station for optical observation of electron beam parameters at the electron storage ring SIBERIA-2 is dedicated for measurement of the transverse and longitudinal size of electron bunches with the use of the synchrotron radiation (SR) visible spectrum in single-bunch and multibunch modes and for study of time-dependent behavior of individual electron bunches with changing accelerator parameters. The article briefly describes the main components of the diagnostics and the experimental results.

Kurchatov Synchrotron Radiation Source (KSRS) operates in the range of SR from VUV up to hard X-ray. Technical modernization of KSRS systems is under way. It includes a replacement of the power supplies and the nano- and micro-second generators by the new ones, the installation of the new third RF accelerator cavity on 2.5 GeV storage ring SIBERIA-2. The projects of the feedback system for the longitudinal coherent multibunch instabilities dumping and of the new sensitive electronics for pick-up stations on Siberia-2 storage ring start in 2010. Three 7.5 T wiggler beam lines were mounted and tested with SR beam in December 2009. The 7.5 T (19+2) poles SC wiggler and new 3 RF cavities are doing the KSRS spectrum harder and intensive. The program tools for KSRS operation are introduced in accelerator control system with a new electronics. The new scheme of top-up energy injection placed outside of Siberia-2 storage ring tunnel is carried out. The report describes a statistics works and plans on KSRS facilities.