Author: Grosso Xavier, M.D.
Paper Title Page
TUPOGE04 An Approach for Component-Level Analysis of Cryogenic Process in Superconducting LINAC Cryomodules 487
SUPCJO03   use link to see paper's listing under its alternate paper code  
  • C. Lhomme
    IJCLab, ORSAY, France
  • D. Berkowitz Zamora, M.D. Grosso Xavier
    SCK•CEN, Brussels, Belgium
  • F. Chatelet, P. Duthil, H. Saugnac
    Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France
  • F. Dieudegard, C. Lhomme
    ACS, Orsay, France
  • T. Junquera
    Accelerators and Cryogenic Systems, Orsay, France
  Powerful superconducting linear accelerators feature accelerating sections consisting in a series of cryomod-ules (CM), each hosting superconducting radiofrequency (SRF) cavities cooled by a cryogenic process. Despite the extensive instrumentation used for the tests and valida-tion of the prototype cryomodules, it is usually very complex to link the measured global thermodynamic efficiency to the individual component performance. Previous works showed methods for assessing the global efficiency and even for allocating performances to sets of components, but few went down to a component level. For that purpose, we developed a set of techniques based on customized instrumentation, on dedicated test proto-cols, and on model-based analysis tools. In practice, we exposed the components to various operating conditions and we compared the measured data to the results from a detailed dynamic component model at the same condi-tions. This method was applied to the cryogenic debug-ging phase of the tests of the MINERVA prototype cry-omodule, which, despite the liquid helium shortage, led to an extensively detailed characterisation, for its valida-tion towards the serial construction.  
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About • Received ※ 20 August 2022 — Revised ※ 21 August 2022 — Accepted ※ 29 August 2022 — Issue date ※ 01 September 2022
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