Author: Transtrum, M.K.
Paper Title Page
MOPMB020 A Comprehensive Picture of Hydride Formation and Dissipation 119
 
  • N. Sitaraman, T. Arias
    Cornell University, Ithaca, New York, USA
  • A.V. Harbick, M.K. Transtrum
    Brigham Young University, Provo, USA
  • M. Liepe
    Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA
  
  Funding: This work was supported by the U.S. National Science Foundation under Award PHY-1549132, the Center for Bright Beams.
Re­search link­ing sur­face hy­drides to Q-dis­ease, and the sub­se­quent de­vel­op­ment of meth­ods to elim­i­nate sur­face hy­drides, is one of the great suc­cesses of SRF cav­ity R\&D. We use time-de­pen­dent Ginzburg-Lan­dau to ex­tend the the­ory of hy­dride dis­si­pa­tion to sub-sur­face hy­drides. Just as sur­face hy­drides cause Q-dis­ease be­hav­ior, we show that sub-sur­face hy­drides cause high-field Q-slope (HFQS) be­hav­ior. We find that the abrupt onset of HFQS is due to a tran­si­tion from a vor­tex-free state to a vor­tex-pen­e­tra­tion state. We show that con­trol­ling hy­dride size and depth through im­pu­rity dop­ing can elim­i­nate HFQS. 		 
DOI • reference for this paper ※ doi:10.18429/JACoW-SRF2023-MOPMB020  
About • Received ※ 30 June 2023 — Revised ※ 18 July 2023 — Accepted ※ 19 August 2023 — Issue date ※ 19 August 2023
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)