Author: Pierini, P.
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ESS: SRF Systems, Overview and Status  
  • P. Pierini
    ESS, Lund, Sweden
  We report the status of the testing of SRF cryomodule at the ESS module test facilities and the preparation activities for the installation and commissioning of the ESS SRF Linac.  
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THP099 The ESS Database for Elliptical Cavities 1152
  • P. Pierini, C.G. Maiano
    ESS, Lund, Sweden
  • A. Bosotti, D. Sertore
    INFN/LASA, Segrate (MI), Italy
  • E. Cenni
    CEA-IRFU, Gif-sur-Yvette, France
  • M. Wang
    IHEP, Beijing, People’s Republic of China
  The large inkind scope of the elliptical superconducting RF linac of the ESS facility implies the handling of handover conditions between the cavities fabrication and testing phases performed at INFN and STFC, to the assembly of cryomodules at CEA and later to ESS in Lund. The performance qualification at the module test stand, and later the commissioning and operation phases require the availability of the cavity performance and frequency data under all environmental conditions during preparation (e.g. temperature, vacuum in beam line/He vessel/vacuum vessel, tuner state). Availability of the data needs to be guaranteed for the long term maintainability of the accelerator. For these reasons a cavity database has been set up at ESS, integrating the data contained in the handover documentation from the inkind partners and extending it during the activities at ESS after receiving the modules. The database has been used to analyze the preparation steps of the prototype demonstrator cryomodule for the tests at ESS, by benchmarking with the data collected during the tests at CEA, and is currently used during the series cavities handover phases.  
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About • paper received ※ 03 July 2019       paper accepted ※ 04 July 2019       issue date ※ 14 August 2019  
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