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Recent Activities in Accelerator Construction and STF Cryomodule
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2677 |
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- T. Semba, Y. Chida, Y. Itou, T. Tagawa, Y. Tsujioka, T. Yoshinari
Hitachi Ltd., Tokyo
- N. Shibata
Hitachi High-Technologies Corp., Ibaraki-ken
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Hitachi has been involved with construction of various accelerator systems for over forty years, from small apparatuses for laboratory use to the large systems for national projects. Our recent results are: SRC (Superconducting Ring Cyclotron) sector magnets of RIKEN RI Beam Factory, J-PARC (Japan Proton Accelerator Research Complex) magnets and power-supplies in JAEA, etc. And also, we have been developed capacities on manufacturing superconducting and cryogenic equipments. These are the key technologies in fundamental science researches. For these two years, we have been practically participated to construct STF (Superconducting RF Test Facility) cryomodule as an R&D equipment for the future ILC. Its two 6-meter long cryostats are designed to contain maximum eight 9-cell cavities in total. After the high-accuracy manufacturing of large vacuum vessels and cryogenic components, we assembled the entire cryomodules with specially designed jigs. Cavities and some related parts were installed by KEK. Through this work, we shared the valuable experience of manufacturing and assembling process. This paper describes our recent activities in accelerator construction and STF cryomodule.
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