Author: Terashima, A.
Paper Title Page
TUPTB049 Horizontal Test Results of 1.3 GHz Superconducting RF Gun #2 at KEK 540
 
  • T. Konomi, K. Hara, Y. Honda, K. Hosoyama, H. Inoue, E. Kako, Y. Kondo, M. Masuzawa, M. Omet, T. Takatomi, A. Terashima, K. Tsuchiya, R. Ueki, K. Umemori, X. Wang
    KEK, Ibaraki, Japan
  
  Su­per­con­duct­ing ra­dio-fre­quency (SRF) elec­tron guns are at­trac­tive for de­liv­ery of beams at a high bunch rep­e­ti­tion rate with a high ac­cel­er­at­ing field. KEK has been de­vel­op­ing the SRF gun to demon­strate basic per­for­mance. The SRF gun con­sists of 1.3 GHz and 1.5 cell SRF gun cav­ity and K2C­sSb pho­to­cath­ode coated on 2K cath­ode plug. In the ver­ti­cal test, the sur­face peak elec­tric field and the sur­face peak mag­netic field reached to 75 MV/m and 170 mT re­spec­tively. The SRF gun was in­stalled to hor­i­zon­tal mul­ti­pur­pose cryo­stat equipped with a su­per­con­duct­ing so­le­noid, pho­to­cath­ode prepa­ra­tion cham­ber and beam di­ag­nos­tic line. The re­sults showed the peak sur­face elec­tric field de­graded to 42 MV/m. We sus­pect that cav­ity was con­t­a­m­i­nated dur­ing as­sem­bly. In this pre­sen­ta­tion, we will pre­sent the high gra­di­ent per­for­mance in ver­ti­cal and hor­i­zon­tal test and in­di­vid­ual test for each beam line com­po­nents.  
DOI • reference for this paper ※ doi:10.18429/JACoW-SRF2023-TUPTB049  
About • Received ※ 24 June 2023 — Revised ※ 28 June 2023 — Accepted ※ 29 June 2023 — Issue date ※ 15 July 2023
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)