Keyword: storage-ring
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MOPTEV013 The VSR Demo Module Design – A Spaceframe-Based Module for Cavities with Warm Waveguide HOM Absorbers cavity, GUI, HOM, SRF 233
  • F. Glöckner, D. Böhlick, M. Bürger, V. Dürr, A. Frahm, J. Knobloch, F. Pflocksch, A.V. Vélez, D. Wolk, N.W. Wunderer
    HZB, Berlin, Germany
  The VSR (Variable pulse length Storage Ring) demo module is a prototype for the superconducting upgrade of HZB’s Bessy II. The module houses two 1.5 GHz superconducting cavities operated at 1.8 K in continuous wave (CW) mode. Each cavity has five water cooled Waveguide HOM Absorbers with high thermal load (450 W), which requires them to be water cooled. This setup introduces several design challenges, concerning space restriction, the interconnection of warm and cold parts and the alignment. In order to provide support and steady alignment an innovative space frame was designed. The transition from cold to warm over the partially superconducting waveguides made a more complex design for shielding and cooling system necessary. With the design close to completion, we are now entering the purchase phase.  
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DOI • reference for this paper ※  
About • Received ※ 21 June 2021 — Revised ※ 02 September 2021 — Accepted ※ 18 November 2021 — Issue date ※ 02 December 2021
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TUPFAV006 The Superconducting Radio Frequency System of Shenzhen Industrial Synchrotron Radiation Source FacilityRIAL SYNCHROTRON RADIATION SOURCE FACILITY cavity, radiation, synchrotron, radio-frequency 392
  • W. Ma, Y.B. Sun, N. Yuan
    Sun Yat-sen University, Zhuhai, Guangdong, People’s Republic of China
  • L.G. Liu
    SSRF, Shanghai, People’s Republic of China
  • L. Lu, L. Yang, Z.L. Zhang
    IMP/CAS, Lanzhou, People’s Republic of China
  Shenzhen industrial synchrotron radiation source is a 3 GeV synchrotron radiation diffraction-limited source. It consists of three parts, linear accelerator, booster, and storage ring. As a basic part of the storage ring, the superconducting radio frequency system provides energy for the beam to supplement the beam power loss caused by synchrotron radiation and higher-order modes, and provide the longitudinal bunch for the electron beam. The superconducting radio frequency cavity of the storage ring consists of two 500 MHz single-cell cavities and a third harmonic 1500 MHz double-cell cavity. This paper will introduce the superconducting cavity, radio frequency amplifier, and low-level radio frequency system in the Shenzhen industrial synchrotron radiation source facility.  
DOI • reference for this paper ※  
About • Received ※ 20 June 2021 — Revised ※ 16 August 2021 — Accepted ※ 21 August 2021 — Issue date ※ 26 November 2021
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