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（10.27）学术报告：Progress in the development of the HFML 45 T Hybrid Magnet

报告人：Ir. Andries den Ouden

High Field Magnet Laboratory

Radboud Unviversity Nijmegen, Netherlands

报告时间：2015年10月27日（周二）下午3:30

报告地点：强磁场中心203会议室

主持人：高秉钧研究员

报告题目：Progress in the development of the HFML 45 T Hybrid Magnet

报告摘要：To extend its user’s facilities the High Field Magnet Laboratory (HFML-EMFL) at the Radboud University is in the process of building a 45 T hybrid magnet. The magnet system will consist of a 22 MW, 32.7 T resistive insert and a 600 mm bore, 12.3 T superconducting outsert magnet, and the design was significantly adjusted after a thorough design revision in 2011. The Nijmegen hybrid magnet will be operated with separate current sources for the superconducting and resistive coils (20 kA at 10 V, and 40 kA at up to 550 V, respectively).

The outsert coil is a layer wound all-Nb3Sn/Cu cable-in-conduit solenoid, cooled by a forced flow of supercritical helium and operated at 20 kA. Like the series-connected hybrids for the HZB (Berlin, Germany) and the NHMFL (Tallahassee, FL, USA), the Nijmegen outsert coil contains three grades of conductor. All CIC types are based on high-current density RRP type of Nb3Sn strand produced by Oxford Superconducting Technology. The CICC production and qualification program has been completed successfully. The coil will be wound at the NHMFL, and, after heat treatment and impregnation, sent to Nijmegen for integration into the cryostat.

The talkI will discuss the design choices and current status of the program.

Ir. Andries den Ouden, age 56, has had a successful career with the Applied Superconductivity Group at the University of Twente. He joined the magnet technology team at the Radboud University Nijmegen as lead engineer of the 45 T hybrid magnet project.

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