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TY - CONF AU - Rocha, M.C. AU - Freitas, P.P.S. AU - Jasso, T. AU - Junqueira Leão, R. AU - Mesa, A.L. AU - Neuenschwander, R.T. AU - Rodrigues, A.R.D. AU - Rodrigues, F. ED - Schaa, Volker RW ED - Tavakoli, Keihan ED - Tilmont, Manuel TI - High Rigidity Girder System for the Sirius Machine J2 - Proc. of MEDSI2018, Paris, France, 25-29 June 2018 C1 - Paris, France T2 - Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation T3 - 10 LA - english AB - Sirius is a 4th generation synchrotron light source under construction in Brazil, with a bare emittance of 250 picometer rad, scheduled to have the first beam late this year. One of the most important aspects for this ultra-low emittance machine is the stability of the components, especially the magnets. This paper describes the main characteristics of the girder system, including the concrete pedestal, the leveling units, the girder itself, the clamping mechanism for the magnets and the measurements procedures. Each detail was considered in the design phase and the result is a high rigidity setup with a first horizontal mode close to 170 Hz. PB - JACoW Publishing CP - Geneva, Switzerland SP - 261 EP - 263 KW - synchrotron KW - alignment KW - damping KW - storage-ring KW - experiment DA - 2018/12 PY - 2018 SN - 978-3-95450-207-3 DO - 10.18429/JACoW-MEDSI2018-WEPH26 UR - http://jacow.org/medsi2018/papers/weph26.pdf ER -