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Field emission analysis of the European Spallation Source medium beta superconducting cavities

M. Bertucci*, A. Bosotti, A. D’Ambros, E. Del Core, A. T. Grimaldi, P. Michelato, L. Monaco, C. Pagani, R. Paparella et al.

D. Sertore

  • INFN Sezione di Milano–Laboratorio LASA, Via Fratelli Cervi 201, 20090 Segrate (MI), Italy

  • *michele.bertucci@mi.infn.it
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Phys. Rev. Accel. Beams 26, 072001 – Published 24 July, 2023

DOI: https://doi.org/10.1103/PhysRevAccelBeams.26.072001

Abstract

This paper presents a quantitative description of field emission in superconducting rf cavities. The goal is to fully reconstruct the physics involved in the phenomenon, from electron current generation at the emitter to the radiation pattern measured by the x-ray detector. The field emission process in the cavity was reconstructed using CST Particle Studio, and then the generation of x-ray radiation and its propagation toward the detectors were modeled analytically. The entire model was then applied to the specific case of the European Spallation Source medium beta superconducting cavities, and the theoretical predictions were cross-checked with experimental data collected during cavity vertical tests.

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References (28)

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Phys. Rev. Accel. Beams 26, 072001– Published 24 July, 2023
  • Received 12 April 2023
  • Accepted 6 July 2023
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

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