Design of a conduction-cooled 4 T superconducting racetrack for a multi-field coupling measurement system

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CHEN Yu-Quan, MA Li-Zhen, WU Wei, GUAN Ming-Zhi, WU Bei-Min, MEI En-Ming and XIN Can-Jie. Design of a conduction-cooled 4 T superconducting racetrack for a multi-field coupling measurement system[J]. Chinese Physics C, 2015, 39(12): 129001. doi: 10.1088/1674-1137/39/12/129001
CHEN Yu-Quan, MA Li-Zhen, WU Wei, GUAN Ming-Zhi, WU Bei-Min, MEI En-Ming and XIN Can-Jie. Design of a conduction-cooled 4 T superconducting racetrack for a multi-field coupling measurement system[J]. Chinese Physics C, 2015, 39(12): 129001.  doi: 10.1088/1674-1137/39/12/129001 shu
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Received: 2015-01-26
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    Supported by National Natural Science Foundation of China (11327802, 11302225), China Postdoctoral Science Foundation (2014M560820) and National Scholarship Foundation of China (201404910172)

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Design of a conduction-cooled 4 T superconducting racetrack for a multi-field coupling measurement system

    Corresponding author: CHEN Yu-Quan,
Fund Project:  Supported by National Natural Science Foundation of China (11327802, 11302225), China Postdoctoral Science Foundation (2014M560820) and National Scholarship Foundation of China (201404910172)

Abstract: A conduction-cooled superconducting magnet producing a transverse field of 4 T has been designed for a new generation multi-field coupling measurement system, which will be used to study the mechanical behavior of superconducting samples at cryogenic temperatures and intense magnetic fields. A compact cryostat with a two-stage GM cryocooler is designed and manufactured for the superconducting magnet. The magnet is composed of a pair of flat racetrack coils wound by NbTi/Cu superconducting composite wires, a copper and stainless steel combinational former and two Bi2Sr2CaCu2Oy superconducting current leads. The two coils are connected in series and can be powered with a single power supply. In order to support the high stress and attain uniform thermal distribution in the superconducting magnet, a detailed finite element (FE) analysis has been performed. The results indicate that in the operating status the designed magnet system can sufficiently bear the electromagnetic forces and has a uniform temperature distribution.

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