Current Bypassing Properties by Thermal Switch for PCS Application on NMR/MRI HTS Magnets

Seok Beom Kim, M. Takahashi, R. Saito, Y. J. Park, M. W. Lee, Y. K. Oh, H. S. Ann

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We develop the compact NMR/MRI device using high temperature superconducting (HTS) wires with the persistent current mode operating. So, the joint techniques between 2G wires are very important issue and many studies have been carried out. Recently, the KJOINS, Inc. has developed successfully the high performance superconducting joints between 2G wires by partial melting diffusion and oxygenation annealing process [1]. In this study, the current bypassing properties in a loop-shaped 2G wire are measured experimentally to develop the permanent current switch (PSC). The current bypassing properties of loop-shaped test coil wound with 2G wire (GdBCO) are evaluated by measured the self-magnetic field due to bypassed current by Hall sensors. The strain gauge was used as heater for persistent current switch, and thermal properties against various thermal inputs were investigated experimentally.

Original languageEnglish
Title of host publicationPhysics Procedia
PublisherElsevier
Pages149-152
Number of pages4
Volume65
DOIs
Publication statusPublished - 2015
Event27th International Symposium on Superconductivity, ISS 2014 - Tokyo, Japan
Duration: Nov 25 2014Nov 27 2014

Other

Other27th International Symposium on Superconductivity, ISS 2014
CountryJapan
CityTokyo
Period11/25/1411/27/14

Fingerprint

superconducting magnets
switches
nuclear magnetic resonance
wire
oxygenation
strain gages
heaters
coils
thermodynamic properties
melting
annealing
sensors
magnetic fields

Keywords

  • HTS coil magnet
  • joints between 2G wires
  • NMR relaxometry
  • permanent current mode
  • persistent current switch (PCS)

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Kim, S. B., Takahashi, M., Saito, R., Park, Y. J., Lee, M. W., Oh, Y. K., & Ann, H. S. (2015). Current Bypassing Properties by Thermal Switch for PCS Application on NMR/MRI HTS Magnets. In Physics Procedia (Vol. 65, pp. 149-152). Elsevier. https://doi.org/10.1016/j.phpro.2015.05.088

Current Bypassing Properties by Thermal Switch for PCS Application on NMR/MRI HTS Magnets. / Kim, Seok Beom; Takahashi, M.; Saito, R.; Park, Y. J.; Lee, M. W.; Oh, Y. K.; Ann, H. S.

Physics Procedia. Vol. 65 Elsevier, 2015. p. 149-152.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kim, SB, Takahashi, M, Saito, R, Park, YJ, Lee, MW, Oh, YK & Ann, HS 2015, Current Bypassing Properties by Thermal Switch for PCS Application on NMR/MRI HTS Magnets. in Physics Procedia. vol. 65, Elsevier, pp. 149-152, 27th International Symposium on Superconductivity, ISS 2014, Tokyo, Japan, 11/25/14. https://doi.org/10.1016/j.phpro.2015.05.088
Kim SB, Takahashi M, Saito R, Park YJ, Lee MW, Oh YK et al. Current Bypassing Properties by Thermal Switch for PCS Application on NMR/MRI HTS Magnets. In Physics Procedia. Vol. 65. Elsevier. 2015. p. 149-152 https://doi.org/10.1016/j.phpro.2015.05.088
Kim, Seok Beom ; Takahashi, M. ; Saito, R. ; Park, Y. J. ; Lee, M. W. ; Oh, Y. K. ; Ann, H. S. / Current Bypassing Properties by Thermal Switch for PCS Application on NMR/MRI HTS Magnets. Physics Procedia. Vol. 65 Elsevier, 2015. pp. 149-152
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