Author: Maag, St.
Paper Title Page
WEPE37 Upgrade of the Super Advanced X-Ray Spectrometer (SAXES) of the RIXS Endstation for Better Resolution and Larger Detector Size 367
 
  • St. Maag, P. Hirschi, L. Nue, T. Schmitt, X. Wang
    PSI, Villigen PSI, Switzerland
 
  The RIXS endstation of ADRESS beamline at Swiss Light Source (SLS) is equipped with an ultrahigh resolution X-ray spectrometer. The spectrometer with a length of 5 m is installed on a rotating girder platform and allows varying scattering angles from 30° to 130°. The position of the CCD detector is longitudinally adjustable on the girder and vertically adjustable on a moving frame to allow an angle between 2° to 15° in the vertical plane. In the scope of a CCD camera upgrade, the modification of the vertical alignment of the guiding structure and ultra-high vacuum tanks became necessary. The new camera with a higher resolution and larger detector size weights around 25 kg. It is required to have a vibration amplitude well below 2 micrometer. We will present the critical design parameters of the upgrade, and the effort to increase bending stiffness of vacuum guide structure while keeping major geometry parameters. In addition, kinematic overdeterminacy was removed. After the upgrade we performed vibration measurements verifying that dynamic stability of the camera is improved, and design goal is reached. The site acceptance test confirmed the proper operation of the new mechanism.  
poster icon Poster WEPE37 [7.016 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2016-WEPE37  
About • paper received ※ 09 September 2016       paper accepted ※ 16 September 2016       issue date ※ 22 June 2017  
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