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Paramonov, V.V.

Paper Title Page
MOPEC066 Status of Mass Production of the ACS Cavity for the J-PARC Linac Energy Upgrade 618
 
  • H. Ao, K. Hirano, T. Morishita
    JAEA/LINAC, Ibaraki-ken
  • H. Asano, N. Ouchi, N. Tsubota
    JAEA/J-PARC, Tokai-mura
  • K. Hasegawa
    JAEA, Ibaraki-ken
  • F. Naito, K. Takata
    KEK, Ibaraki
  • V.V. Paramonov
    RAS/INR, Moscow
  • Y. Yamazaki
    J-PARC, KEK & JAEA, Ibaraki-ken
  
 

The mass pro­duc­tion of the ACS (An­nu­lar Cou­pled Struc­ture) cav­i­ty start­ed from March 2009 for the J-PARC Linac en­er­gy up­grade from 181 MeV to 400 MeV. This up­grade pro­ject re­quires 18 ACS ac­cel­er­at­ing mod­ules and two de­bunch­ers ad­di­tion­al­ly with­in three years. The con­struc­tion sched­ule is so tight that we have to op­ti­mize the fab­ri­ca­tion pro­cess. For ex­am­ple the ge­o­met­ri­cal beta is var­ied for each ac­cel­er­at­ing mod­ule, thus the sev­er­al test cells were fab­ri­cat­ed and for the all beta be­fore the mass pro­duc­tion to con­firm the ini­tial de­sign and the fre­quen­cy tun­ing pro­ce­dure. This paper de­scribes our ap­proach for the mass pro­duc­tion and the cur­rent sta­tus and re­sults.