NDLI: Magnetic Force Field Enhancement by Field Cooling of HTS Bulk Cylinder

Content Provider	IEEE Xplore Digital Library
Author	Kiyoshi, T. Koizumi, T. Liu Xiaojun Matsumoto, S.
Copyright Year	2002
Abstract	In order to obtain a large magnetic force environment using a commercially available superconducting magnet with a room-temperature bore, a new cryostat cooling a high-temperature superconductor (HTS) bulk cylinder with a G-M cryocooler down to approximately 20 K was developed. The cryostat was inserted so that the bulk cylinder might be located at the mid-plane of a 12-T cryocooler-cooled magnet. In the first experiment, the cylinder was cooled from room temperature to 21 K at 5.0 T. The backup field was then decreased to 0 T. A field of 4.9 T was maintained along the Z-axis inside the cylinder. The second experiment was carried out from a backup field of 11.5 T. The HTS bulk cylinder maintained the magnetic flux down to about a backup field of 7.6 T, at which point the superconducting state of the cylinder was lost in a brief period. The experimental data exhibit good accordance with the calculation results. In the calculation, the minimum BdB /dz of -1029 T²/m was estimated to be generated along the Z-axis. As that of the magnet is -564 T²/m at 12 T, the enhancement of the magnetic force with the HTS bulk cylinder was confirmed.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	2274
Ending Page	2277
Page Count	4
File Size	787023
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	Magnetic forces Cooling High temperature superconductors Superconducting magnets Magnetic flux Magnetic levitation Magnetic fields Boring Current density Yttrium barium copper oxide magnetic force Field cooling (FC) high-temperature superconductor (HTS) bulk
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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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