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TY - UNPB AU - Shatokhin, V.L. AU - Dyubkov, V.S. AU - Liuzzo, S.M. AU - Maccarrone, C. AU - Marques, H.P. AU - Panishev, A.S. AU - Polozov, S.M. AU - Popova, A.V. ED - Kuzin, Maksim V. ED - Schaa, Volker RW TI - Development of the Vacuum System of the Specialized Synchrotron Radiation Source SSRS4 in Kurchatov Institute J2 - Proc. of RUPAC2018, Protvino, Russia, 01-05 October 2018 C1 - Protvino, Russia T2 - Russian Particle Accelerator Conference T3 - 26 LA - english AB - The vacuum system design has been started now for the 4th generation Specialized Synchrotron Radiation Source (SSRS4). The SSRS4 project is under development at the National Research Center "Kurchatov Institute" in the partnership with the European Synchrotron Radiation Facility, ESRF, Grenoble, France. Basic parameters of the vacuum system of SSRS4 and its structure are main objects of the investigation. Principles of the vacuum system elements modeling and the vacuum simulation in chambers near the charged particles trajectory are considered. The main attention during of the SSRS4 vacuum system development is directed to the choice of computational models and for the specification of vacuum chambers and them internal surfaces parameters. The first version of the periodic structure of the vacuum system is proposed and it will be discussed in report. PB - JACoW Publishing CP - Geneva, Switzerland ER -