MT25 Conference 2017 - Timetable, Abstracts, Orals and Posters

Quench and Recovery Characteristics of MgB2 Coil with Various Protection Schemes

31 Aug 2017, 13:45

1h 45m

Posters Area

Poster Presentation of 1h45m G1 - Quench Detection and Protection Systems Thu-Af-Po4.09

Speaker

Mr Young-Gyun Kim (Department of Materials Science and Engineering, Korea University, Seoul, Korea)

Description

In recent years, magnesium diboride (MgB2) has been regarded as one of the promising candidates for the development of MRI magnets owing to its critical temperature of 39 K, which allows magnets to be operated without the use of liquid helium (LHe), unlike their low-temperature superconductor counterparts. Prior to the development of the LHe-free MgB2 MRI magnet, it is essential to investigate the appropriate protection scheme for the magnets. Therefore, this study examined passive and active protections for a proto-type MgB2 coil using the MgB2 wires manufactured by Kiswire Advanced Technology Co. Ltd. The quench and recovery characteristics of the MgB2 coil with various protection schemes were evaluated in terms of the maximum hotspot temperature, maximum induced voltage, and recovery time.
Acknowledgement: This work was supported by the Korea Basic Science Institute under Grant D37614.

Presentation materials

MT25_poster_YGKim_MgB2 protection.pdf