NDLI: Multipoint Measurements of Transient Flux Motion on Bulk Superconductor During Pulsed Field Magnetization

Content Provider	IEEE Xplore Digital Library
Author	Shiraishi, R. Ohsaki, H.
Copyright Year	2002
Abstract	Recently, various apparatuses using magnetized bulk superconductors as strong flux sources have been studied. The Pulsed field magnetization (PFM) is expected as an effective method for magnetizing the bulk superconductor. The applications using the PFM would make the magnetization system much simpler than the other methods. However, in the PFM, the inhomogeneity of the magnetized distribution becomes a problem when the bulk superconductor is applied to various apparatuses. The recent researches have revealed that such inhomogeneity strongly depends on the local critical density distribution. In the local region with the lower critical current density, the magnetic flux penetrates the bulk superconductor more easily. We study the transient electromagnetic phenomena of the local magnetic flux motions during the PFM by using multi-pick-up coils arranged on the whole surface of the bulk superconductor. In this study, we quantitatively evaluate local motions of magnetic flux in bulk superconductor. A complex magnetization process during the PFM is clarified based on the inhomogeneous distribution of the critical current density in the bulk superconductor.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	3664
Ending Page	3667
Page Count	4
File Size	435744
File Format	PDF
ISSN	10518223
Volume Number	17
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse measurements Magnetic field measurement Motion measurement Magnetization Superconducting magnets High temperature superconductors Superconducting coils Magnetic flux Magnetic separation Critical current density pulsed field magnetization Bulk superconductor flux motion flux pinning
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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