JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Zilli, V.B. AU - Ambrosio, C. AU - Basilio, G.G. AU - Cezar, J.C. AU - Del Nero, F.A. AU - Ferreira, G.R.B. AU - Francisco, B.A. AU - Gardingo, M.E.O.A. AU - Geraldes, R.R. AU - Pinto, A.C. AU - Rodrigues, G.L.M.P. AU - Volpe, L.M. AU - Ynamassu, V.S. AU - de Oliveira, R.G. ED - Schaa, Volker R.W. ED - Bian, Lin ED - Chen, Zhichu ED - Dong, Yuhui ED - He, Ping TI - Exactly Constrained, High Heat Load Design for SABIA’s First Mirror J2 - Proc. of MEDSI2023, Beijing, China, 06-10 November 2023 CY - Beijing, China T2 - International Conference on Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation T3 - 12 LA - english AB - The SABIA beamline (Soft x-ray ABsorption spectroscopy and ImAging) will operate in a range of 100 to 2000 eV and will perform XPS, PEEM and XMCD techniques at SIRIUS/LNLS. Thermal management on these soft x-ray beamlines is particularly challenging due to the high heat loads. SABIA’s first mirror (M1) absorbs about 360 W, with a maximum power density of 0.52 W/mm², and a water-cooled mirror was designed to handle this substantial heat load. To prolong the mirror operation lifetime, often shortened on soft X-ray beamlines due to carbon deposition on the mirror optical surface, a procedure was adopted using high partial pressure of O₂ into the vacuum chamber during the commissioning phase. The internal mechanism was designed to be exactly constrained using folded leaf springs. It presents one degree of freedom for control and alignment: a rotation around the vertical axis with a motion range of about ±0.6 mrad, provided by a piezoelectric actuator and measured using vacuum compatible linear encoders. This work describes the SABIA’s M1 exactly constrained, high heat absorbent design, its safety particularities compared to SIRIUS typical mirrors, and validation tests results. PB - JACoW Publishing CP - Geneva, Switzerland SP - 44 EP - 47 KW - vacuum KW - MMI KW - alignment KW - monitoring KW - synchrotron DA - 2024/07 PY - 2024 SN - 2673-5520 SN - 978-3-95450-250-9 DO - doi:10.18429/JACoW-MEDSI2023-TUPYP008 UR - https://jacow.org/medsi2023/papers/tupyp008.pdf ER -