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 - UNPB AU - Felcsuti, G. AU - González Fernández, J.B. ED - Schaa, Volker R.W. ED - Bian, Lin ED - Chen, Zhichu ED - Dong, Yuhui ED - He, Ping TI - Structural Dynamic Testing and Design Evaluation of the Formax Detector Gantry 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 - ForMAX, a new beamline at MAX IV, offers multi-scale structural characterization of hierarchical materials from nm to mm length scales by combining full-field microtomography and small- and wide-angle x-ray scattering (SWAXS) techniques. The sample position features a two-meter-high granite gantry that enables independent movement of the tomography microscope and wide-angle x-ray (WAXS) detector in and out of the x-ray beam, as well as along the beam on motorized floor rails. Ensuring optimal experimental performance requires high stiffness and low vibration amplitudes which are challenging goals to achieve with such slender structures. This study focuses on the structural dynamics of the gantry and summarizes the verifications tests that were conducted to assess the structure¿s sensitivity to ambient disturbances. Experimental modal analysis was employed to investigate the structural dynamics of the gantry and the obtained mode shapes are compared to the finite element calculations based on the Modal Assurance Criterion (MAC). Special attention is paid to the pneumatic brake on the detector’s floor rails that was implemented to increase the lowest eigenfrequency of the gantry. PB - JACoW Publishing CP - Geneva, Switzerland ER -