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アトラス測定器超伝導ソレノイド： ATLAS Superconducting Central Solenoid

Solenoid-v2, http://atlas.kek.jp/sub/poster/index.html. Design parameters Size inner diameter 2.46 m outer diameter 2.63 m axial length 5.30 m Mass cold mass 5.4 ton total weight 5.7 ton Coil turns/coil 1173 nominal current 7.6 kA inductance 1.35 H stored energy 39 MJ

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アトラス測定器超伝導ソレノイド： ATLAS Superconducting Central Solenoid

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  1. Solenoid-v2, http://atlas.kek.jp/sub/poster/index.html Design parameters Size inner diameter 2.46 m outer diameter 2.63 m axial length 5.30 m Mass cold mass 5.4 ton total weight 5.7 ton Coil turns/coil 1173 nominal current 7.6 kA inductance 1.35 H stored energy 39 MJ central field 2.0 T peak field 2.6 T ramp up time 0.5 h Conductor size 30 x 4.25 mm2 total length 10 km Al:Cu:NbTi 15.6 : 0.9 : 1 number of strands 12 strand diameter 1.22 mm RRR aluminum > 500 working point at 4.5K 20 % temperature margin 2.7 K Cooling at 4.5K 130 W at 60-80K 500W helium mass flow 6-20 g/s cool down time 8 days アトラス測定器超伝導ソレノイド：ATLAS Superconducting Central Solenoid • Main features to minimize the coil radiation thickness: • Common cryostat with the LAr EM calorimeter. • High strength aluminum stabilizer. • Fast quench axial propagation using pure Al strips. • Triangle supports from the Inner warm vessel. 2000.12.26 : Excitation curve 1998: test of Al-stabilized Conductor 1999.4-6: Coil winding at Toshiba 1999.12.: Coil mounted on the Inner Warm Vessel by 24 triangle supports at Toshiba Keihin Factory. A. Yamamoto, Y. Makida, Y. Doi, T. Haruyama, M. Kawai, Y. Kondo, H. Yamaoka, T. Kondo (KEK) S. Mizumaki, S. Mine (Toshiba) R. Ruber, F. Haug, H. ten Kate (CERN) 2001.7.24 : Shipping from Yokohama Bay 2000.12.26 : Celebrating the success of full excitation 8400A at Toshiba 2003.12: in front of Control Dewar in B180 2001.9.27: at CERN B180 with CERN DG 2004.7.5: Excitation test to 8136A at B180 CERN 2004.2.27: celebrating the success of Solenoid-LAr docking 2004.3: piping and cabling works 2004.2.26: Coin insertion into LAr calorimeter with a few mm clearance. 2005.12: connection works on Control Dewar 2004.10.27: Transportation from B180 to Point 1 2004.10.28: Descent from SX1 to US15 Final cooling and excitation in May and June 2006 2005.11.4: Barrel calorimeter in place. Solenoid-v2, http://atlas.kek.jp/sub/poster/index.html

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