Author: Yamaguchi, S.
Paper Title Page
MOODA02 S1-Global Module Tests at STF/KEK 38
 
  • D. Kostin, K. Jensch, L. Lilje, A. Matheisen, W.-D. Möller, P. Schilling, M. Schmökel, N.J. Walker, H. Weise
    DESY, Hamburg, Germany
  • C. Adolphsen, C.D. Nantista
    SLAC, Menlo Park, California, USA
  • M. Akemoto, S. Fukuda, K. Hara, H. Hayano, N. Higashi, E. Kako, H. Katagiri, Y. Kojima, Y. Kondo, T. Matsumoto, H. Matsushita, S. Michizono, T. Miura, H. Nakai, H. Nakajima, K. Nakanishi, S. Noguchi, N. Ohuchi, T. Saeki, M. Satoh, T. Shidara, T. Shishido, T. Takenaka, A. Terashima, N. Toge, K. Tsuchiya, K. Watanabe, S. Yamaguchi, A. Yamamoto, Y. Yamamoto, K. Yokoya
    KEK, Ibaraki, Japan
  • T.T. Arkan, S. Barbanotti, M.A. Battistoni, H. Carter, M.S. Champion, A. Hocker, R.D. Kephart, J.S. Kerby, D.V. Mitchell, T.J. Peterson, Y.M. Pischalnikov, M.C. Ross, W. Schappert, B.E. Smith
    Fermilab, Batavia, USA
  • A. Bosotti, C. Pagani, R. Paparella, P. Pierini
    INFN/LASA, Segrate (MI), Italy
  
  S1-Glob­al col­lab­o­ra­tive ef­fort of INFN, DESY, FNAL, SLAC and KEK, re­cent­ly suc­cess­ful­ly fin­ished at KEK as a part of ILC GDE, is an im­por­tant mile­stone for the ILC. In­ter­na­tion­al col­lab­o­ra­tion of three re­gions, Asia, North Amer­i­ca and Eu­rope, proved to be ef­fi­cient on the con­struc­tion and cold tests of the ac­cel­er­at­ing mod­ule con­sist­ing of 8 SRF cav­i­ties; 2 from FNAL, 2 from DESY and 4 from KEK. Three dif­fer­ent cav­i­ty tun­ing sys­tems were test­ed to­geth­er with two types of high power cou­plers. The mod­ule was cooled down three times which en­abled ex­ten­sive high power tests with cav­i­ties, per­for­mance lim­its in­ves­ti­ga­tion, Lorentz force de­tun­ing tests, si­mul­ta­ne­ous mul­ti­ple cav­i­ties op­er­a­tion and other ac­tiv­i­ties such as an op­er­a­tion test of dis­tribut­ed RF scheme with low level RF feed­back. The re­sults of this S1-Glob­al mod­ule test are pre­sent­ed and dis­cussed.  
slides icon Slides MOODA02 [2.982 MB]  
 
WEPO035 Thermal Performance of the S1-Global Cryomodule for ILC 2472
 
  • N. Ohuchi, M. Akemoto, S. Fukuda, K. Hara, H. Hayano, N. Higashi, E. Kako, Y. Kojima, Y. Kondo, T. Matsumoto, S. Michizono, T. Miura, H. Nakai, H. Nakajima, K. Nakanishi, S. Noguchi, T. Saeki, M. Satoh, T. Shidara, T. Shishido, T. Takenaka, A. Terashima, N. Toge, K. Tsuchiya, K. Watanabe, S. Yamaguchi, A. Yamamoto, Y. Yamamoto, K. Yokoya
    KEK, Ibaraki, Japan
  • T.T. Arkan, S. Barbanotti, H. Carter, M.S. Champion, A. Hocker, R.D. Kephart, J.S. Kerby, D.V. Mitchell, T.J. Peterson, Y.M. Pischalnikov, M.C. Ross
    Fermilab, Batavia, USA
  • A. Bosotti, C. Pagani, R. Paparella, P. Pierini
    INFN/LASA, Segrate (MI), Italy
  • D. Kostin, L. Lilje, A. Matheisen, W.-D. Möller, N.J. Walker, H. Weise
    DESY, Hamburg, Germany
  
  The S1-Glob­al pro­gram is the in­ter­na­tion­al re­search col­lab­o­ra­tion among INFN, FNAL, DESY, SLAC and KEK as one of the GDE R&D for con­struc­tion of ILC. The S1-Glob­al cry­omod­ule con­sists of two half-size cry­omod­ules of 6 meter. One was de­signed by IFNF, and it con­tained two FNAL cav­i­ties and two DESY cav­i­ties. The as­so­ci­at­ed com­po­nents, like input cou­plers and RF ca­bles, were same as the TTF-III cry­omod­ule. The other was de­signed by KEK, and the ther­mal de­sign was based on the TTF-III cry­omod­ule. This cry­omod­ule con­tains four KEK cav­i­ties with the as­so­ci­at­ed com­po­nents which were de­signed by KEK. For char­ac­ter­iz­ing the ther­mal per­for­mances of two cry­omod­ules, the stat­ic heat load and the tem­per­a­ture pro­files of the cold com­po­nents were mea­sured. The tem­per­a­ture pro­files of the com­po­nents were com­pared be­tween two cry­omod­ules and the stat­ic heat load was eval­u­at­ed with the de­sign val­ues of the cry­omod­ules. The dy­nam­ic loss­es of the DESY, FNAL and two KEK cav­i­ties at their max­i­mum op­er­a­tive gra­di­ents were mea­sured and, with the mea­sured loss­es, Q val­ues were cal­cu­lat­ed. In this paper, we will make the sum­ma­ry of the ther­mal mea­sure­ments of the S1-Glob­al cry­omod­ule.