Author: Heilmann, M.
Paper Title Page
MOPAB208 LLRF Measurements and Cu-plating at the First-of-Series Cavity Section of the Alvarez 2.0 at GSI 686
 
  • M. Heilmann, T. Dettinger, X. Du, L. Groening, S. Mickat, A. Rubin
    GSI, Darmstadt, Germany
 
  The Al­varez 2.0 will re­place the ex­ist­ing post-strip­per DTL of the GSI UNI­LAC. Today’s GSI com­prises the UNI­LAC and the syn­chro­tron SIS18 and is going to serve as the in­jec­tor chain for the Fa­cil­ity of An­tipro­ton and Ion Re­search (FAIR). The new Al­varez-type DTL is op­er­ated at 108.4 MHz pro­vid­ing ac­cel­er­a­tion from 1.4 MeV/u to 11.4 MeV/u along a total length of 55 me­ters. The first-of-se­ries (FoS) cav­ity sec­tion has 12 RF-gaps along a total length of 1.9 m. It is the first cav­ity sec­tion of the new DTL. All main com­po­nents were de­liv­ered in 2019, fol­lowed by suc­cess­ful SAT and in­stal­la­tion of the 11 drift tubes and cop­per-plat­ing. Com­ple­tion of first low level RF-mea­sure­ments prior to cop­per plat­ing and the sub­se­quent plat­ing are major pro­ject mile­stones. These pro­ceed­ings re­port on the re­sults and com­pares them to sim­u­la­tion using CST Mi­crowave Stu­dio.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB208  
About • paper received ※ 18 May 2021       paper accepted ※ 31 May 2021       issue date ※ 22 August 2021  
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