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| THICKI01 |
ILC Underground Cost Analysis in the US
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2696 |
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Overview of cost analyses prepared on various aspects of the underground construction for ILC located at a site near Fermilab in USA. The analyses encompass the various construction costs for the tunnels, shafts, passageways, caverns, and halls associated with the ILC.
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Slides
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| THICKI02 |
Design of Large-sized Accelerator Tunnel
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2697 |
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- T. Kato
- A. Tamura
Nikken Sekkei Civil Ltd, Tokyo
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There are several key points in designing the underground tunnel where large-sized accelerator is installed. The following two points are very important. (1) Transformation of the tunnel should be minimal. (2) Level of integrity and durability of the tunnel structure should be high. In order to accomplish minimal transformation of the tunnel and stable operation of the accelerator, we recommend not to provide the expansion joints in the tunnel concrete. As the result of structural analysis which we performed on temperature change inside the tunnel without expansion joints, we confirmed that there was few incidence of harmful cracks and transformation.
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Slides
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| THICKI03 |
Large Helium Refrigeration Plant Operating Experience
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2700 |
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- J. Urbin
- R. D. Nolte
Air Products & Chemicals, Inc., Allentown, Pennsylvania
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Air Products and Linde have signed a Teaming Agreement to pursue refrigeration services for the proposed International Linear Collider. Air Products brings unique helium liquefaction and refrigeration capabilities to the table through its operation of one third of the world's cryogenic liquefiers and ownership of Gardner Cryogenics – the world's leading developer, designer and manufacturer of liquid helium storage, distribution and transportation equipment. Air Products is an industry leader throughout the helium supply chain, from providing technology for crude helium extraction from natural gas, to delivering liquid helium to end users, as well as through MRI helium supply activities. Air Products has designed and installed most of the world's crude helium extraction plants. Linde designs and builds cryogenic plants and systems for the most varied fields, from fundamental research and industrial HTS applications to the cooling of superconducting accelerators and cold neutron sources, fusion and fission applications and the industrial liquefaction of helium and hydrogen.
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Slides
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| THICKI04 |
Development of STF Cryogenic System in KEK
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2701 |
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- J. Yoshida
- K. Hara, K. Hosoyama, Y. Kojima, H. Nakai, K. Nakanishi
KEK, Ibaraki
- T. Ichitani, S. Kaneda
Taiyo Nippon Sanso Corporation, Kawasaki-city Kanagawa Pref.
- T. Kanekiyo
Hitachi Technologies and Services Co., Ltd., Kandatsu, Tsuchiura
- M. Noguchi
Mayekawa MFG. Co., Ltd., Moriya
- S. Sakuma, K. Suzuki
Taiyo Nippon Sanso Higashikanto Corporation, Hitachi-shi, Ibaraki-Perf.
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Under the leadership of KEK, the collaborating design activity has been performed in KEK in order to develop the STF (Superconducting RF Test Facility) cryogenic system, together with some positive Japanese industrial members. As the first activity of the collaboration, the initial plant of STF cryogenic system with capacity of 30W at 2.0K has been constructed for the testing of STF cryomodule, and been ready for its operation in KEK. In this session, the present status and schedule of STF cryogenic system in KEK shall be briefly reported.
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Slides
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| THICKI05 |
European Industries Potential Capabilities on Cryogenics for the Future IlC
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2704 |
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Following the construction of LHC, the European industries have demonstrated there ability to construct complete helium and nitrogen refrigeration systems both for the needs of the huge accelerator and the associated detectors. Eight 18 kW at 4.5 K and 2.4 kW at 1.8 K helium refrigeration systems have been constructed. Each refrigeration system is connected to 3 km of the 27 km long accelerator thanks to interconnecting valve boxes and high performances helium transfer lines. This is the biggest refrigeration system ever constructed in the world. The demand for cryogenics for the future ILC project is comparable in terms of equipment sizes but even bigger in terms of number of units required. The present refrigeration system scenario of ILC includes ten 22 kW at 4.5 K refrigerators and twelve 4.1 kW at 2 K refrigerators. In the present paper, this scenario will be presented and compared to the realizations done by the European Cryogenic Industries. Contact : Pascale.dauguet@airliquide.com
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