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TY - CONF AU - Wang, Y. AU - Fan, L. AU - Hong, Y.Z. AU - Pei, X.T. AU - Wei, W. AU - Zhang, B. ED - Casas, Joan ED - Schaa, Volker RW ED - Costa, Isidre ED - López, David ED - Prieto, Montserrat TI - Vacuum System of HLS-II Storage Ring J2 - Proc. of MEDSI2016, Barcelona, Spain, 11-16 September 2016 CY - Barcelona, Spain T2 - Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation Conference T3 - 9 LA - english AB - Hefei Light Source (HLS) has been operated for more than twenty-five years. From 2010 to 2014, the upgrading project of HLS has been carried out and the new machine is called HLS-II. The main improvement include: the emittance is reduced to 40 nm·rad, 3 new insertion devices (2 IVU and 1 EPU undulators) are added and the injection energy increases to 800 MeV. The typical life time is 300 mins at 300mA, 800 MeV. The average pressure of static and dynamic vacuum are below 2·10⁸ Pa and 1.2·10⁻⁷ Pa respectively. The design, installing and commissioning of the vacuum system of the storage ring are detailed stated in in this paper. PB - JACoW Publishing CP - Geneva, Switzerland SP - 74 EP - 76 KW - ion KW - storage-ring KW - vacuum KW - synchrotron KW - MMI DA - 2017/06 PY - 2017 SN - 978-3-95450-188-5 DO - doi:10.18429/JACoW-MEDSI2016-MOPE29 UR - http://jacow.org/medsi2016/papers/mope29.pdf ER -