Author: Giacchini, M.G.
Paper Title Page
TUPOJO09 High Power RF Conditioning of the ESS DTL1 356
 
  • F. Grespan, C. Baltador, L. Bellan, D. Bortolato, M. Comunian, E. Fagotti, M.G. Giacchini, M. Montis, A. Palmieri, A. Pisent
    INFN/LNL, Legnaro (PD), Italy
  • F. Grespan, B. Jones, L. Page, A.G. Sosa, E. Trachanas, R. Zeng
    ESS, Lund, Sweden
  • D.J.P. Nicosia
    CERN, Meyrin, Switzerland
 
  The first tank of Drift Tube Linac (DTL) for the Eu­ro­pean Spal­la­tion Source ERIC (ESS), de­liv­ered by INFN, has been in­stalled in the ESS tun­nel in Sum­mer 2021. The DTL-1 is de­signed to ac­cel­er­ate a 62.5 mA pro­ton beam from 3.62 MeV up to 21 MeV. It con­sists of 61 ac­cel­er­at­ing gaps, al­ter­nate with 60 drift tubes equipped with Per­ma­nent Mag­net Quadru­pole (PMQ) in a FODO lat­tice. The re­main­ing drift tubes are equipped with di­pole cor­rec­tors (steer­ers), beam po­si­tion mon­i­tors (BPMs) or empty. The total length of the cav­ity is 7.6 m and it is sta­bi­lized by post cou­plers. Two wave­guide cou­plers feed the DTL with the 2.2 MW of RF power re­quired for beam op­er­a­tion, equally di­vided by RF power losses and beam power. This paper first pre­sents the main sys­tems re­quired for the DTL con­di­tion­ing. Then it sum­ma­rizes the main steps and re­sults of this high power RF con­di­tion­ing done at ESS to pre­pare the DTL for the con­se­quent beam com­mis­sion­ing.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TUPOJO09  
About • Received ※ 15 August 2022 — Revised ※ 19 August 2022 — Accepted ※ 29 August 2022 — Issue date ※ 15 September 2022
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