The development of high field magnets utilizing Bi-2212 wind & react insert coils
The development of high field magnets utilizing Bi-2212 wind & react insert coils
Wind & react Bi-2212 inserts have been manufactured and tested inside a wide-bore NbTi-Nb3Sn magnet providing a background field up to 20T at 4.2K. A pair of six-layer concentric coils both achieved critical currents of 350 A (JE = 200 A/mm2) in a 20T background field. A thicker 14-layer insert made from 119m of round wire had a critical quench current IQ of 287A (JE = 162 A/mm2) at the same field and contributed to a combined central field of 22.5 T. This is a record for a fully superconducting magnet at 4.2 K. The 14-layer coil, equipped with an external protective shunt, was used for an extensive series of quench measurements and endured >150 quenches without damage. Minimum quench energies were found to be in the range of 200-500mJ in background fields of 15-20T when the coil carried 70-95% of its critical quench current.
Bi-2212, high temperature superconductor, high field magnet, quench
583-586
Friend, Chris M.
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Miao, Hangping
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Huang, Yibing
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Melhem, Ziad
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Domptail, Fred
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Meinesz, Maarten
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Hong, Seung
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Yang, Yifeng
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Young, Edward A.
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Oxford Instruments NanoScience
5 April 2010
Friend, Chris M.
1f69d5b3-2b8d-48e0-b41e-52b1ba413e06
Miao, Hangping
8e74877e-b001-400c-a40b-8e67f82dea35
Huang, Yibing
0b493d50-cbbd-45f4-91b8-ddbb53acd5a2
Melhem, Ziad
a137a087-e103-40c7-a2e8-84cb2bd14023
Domptail, Fred
01ea7d49-f938-4f71-a75b-7ea4f1864e9e
Meinesz, Maarten
81a28fcf-e2e7-43a1-a53f-6bfa376ac7c9
Hong, Seung
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Yang, Yifeng
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Young, Edward A.
d3a881b0-a564-41f5-9843-34ae86da360f
Friend, Chris M., Miao, Hangping, Huang, Yibing, Melhem, Ziad, Domptail, Fred, Meinesz, Maarten, Hong, Seung, Yang, Yifeng and Young, Edward A.
,
Oxford Instruments NanoScience
(2010)
The development of high field magnets utilizing Bi-2212 wind & react insert coils.
IEEE Transactions on Applied Superconductivity, 20 (3), .
(doi:10.1109/TASC.2010.2043237).
Abstract
Wind & react Bi-2212 inserts have been manufactured and tested inside a wide-bore NbTi-Nb3Sn magnet providing a background field up to 20T at 4.2K. A pair of six-layer concentric coils both achieved critical currents of 350 A (JE = 200 A/mm2) in a 20T background field. A thicker 14-layer insert made from 119m of round wire had a critical quench current IQ of 287A (JE = 162 A/mm2) at the same field and contributed to a combined central field of 22.5 T. This is a record for a fully superconducting magnet at 4.2 K. The 14-layer coil, equipped with an external protective shunt, was used for an extensive series of quench measurements and endured >150 quenches without damage. Minimum quench energies were found to be in the range of 200-500mJ in background fields of 15-20T when the coil carried 70-95% of its critical quench current.
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Published date: 5 April 2010
Keywords:
Bi-2212, high temperature superconductor, high field magnet, quench
Organisations:
Thermofluids and Superconductivity
Identifiers
Local EPrints ID: 69578
URI: http://eprints.soton.ac.uk/id/eprint/69578
ISSN: 1051-8223
PURE UUID: 52f3f52b-d138-40ab-a8e5-285e5c199a48
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Date deposited: 19 Nov 2009
Last modified: 14 Mar 2024 02:37
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Contributors
Author:
Chris M. Friend
Author:
Hangping Miao
Author:
Yibing Huang
Author:
Ziad Melhem
Author:
Fred Domptail
Author:
Maarten Meinesz
Author:
Seung Hong
Corporate Author: Oxford Instruments NanoScience
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