Repairing and upgrading of the HTS insert in the 18T cryogen-free superconducting magnet

S. Awaji; Hidetoshi Oguro; K. Watanabe; S. Hanai; S. Ioka; H. Miyazaki; M. Daibo; Y. Iijima; T. Saito; M. Itoh

doi:10.1063/1.4860776

Repairing and upgrading of the HTS insert in the 18T cryogen-free superconducting magnet

S. Awaji, Hidetoshi Oguro, K. Watanabe, S. Hanai, S. Ioka, H. Miyazaki, M. Daibo, Y. Iijima, T. Saito, M. Itoh

High Field Laboratory for Superconducting Materials

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

9 Citations (Scopus)

Abstract

Since the development of the 18T cryogen-free superconducting magnet (18T-CSM) at the High Field Laboratory for Superconducting Materials (HFLSM), IMR, Tohoku University, it has been routinely utilized for the various high field researches such as the in-field materials processing and so on. After the Great East Japan Disaster, however, the 18T-CSM is under the repairing due to the serious damages of the system. At this time, a part of the middle Nb ₃ Sn section coil and the Bi2223 inner most coil were renewed. The bronze-route Nb ₃ Sn coil with a low ac-loss was adopted instead of the previous internal-Sn Nb ₃ Sn coil for the reduction of the heat-generation during a field ramping. The new Bi2223 coil will generate the central field of 4.5 T under the background field of 15.5 T by the LTS outer coils, although the previous Bi2223 coil generated 2.5 T. Hence the 18T-CSM was successfully upgraded to the 20T-CSM. In addition to the Bi2223 insert, the Gd123 insert coil is being constructed as well. When the Gd123 insert coil is installed instead of the Bi2223 coil, it will be upgraded to the 22T-CSM from the 20T-CSM.

Original language	English
Title of host publication	Advances in Cryogenic Engineering - Transactions of the Cryogenic Engineering Conference - CEC, Volume 59
Editors	Susan Breon, Jennifer Marquardt, Thomas Peterson, Michael DiPirro, John Pfotenhauer, Jonathan Demko, James Fesmire, Arkadiy Klebaner, Sidney Yuan, Al Zeller, Peter Kittel, Gregory Nellis, Mark Zagarola
Publisher	American Institute of Physics Inc.
Pages	732-738
Number of pages	7
ISBN (Electronic)	9780735412019
DOIs	https://doi.org/10.1063/1.4860776
Publication status	Published - 2014 Jan 1
Event	2013 Joint Cryogenic Engineering and International Cryogenic Materials Conferences, CEC/ICMC 2013 - Anchorage, United States Duration: 2013 Jun 17 → 2013 Jun 21

Publication series

Name	AIP Conference Proceedings
Volume	1573
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	2013 Joint Cryogenic Engineering and International Cryogenic Materials Conferences, CEC/ICMC 2013
Country	United States
City	Anchorage
Period	13/6/17 → 13/6/21

Keywords

Critical current
Cryogen-free superconducting magnet
High temperature superconductor
Mechanical stress

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.4860776

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Awaji, S., Oguro, H., Watanabe, K., Hanai, S., Ioka, S., Miyazaki, H., Daibo, M., Iijima, Y., Saito, T., & Itoh, M. (2014). Repairing and upgrading of the HTS insert in the 18T cryogen-free superconducting magnet. In S. Breon, J. Marquardt, T. Peterson, M. DiPirro, J. Pfotenhauer, J. Demko, J. Fesmire, A. Klebaner, S. Yuan, A. Zeller, P. Kittel, G. Nellis, & M. Zagarola (Eds.), Advances in Cryogenic Engineering - Transactions of the Cryogenic Engineering Conference - CEC, Volume 59 (pp. 732-738). (AIP Conference Proceedings; Vol. 1573). American Institute of Physics Inc.. https://doi.org/10.1063/1.4860776

Repairing and upgrading of the HTS insert in the 18T cryogen-free superconducting magnet. / Awaji, S.; Oguro, Hidetoshi; Watanabe, K.; Hanai, S.; Ioka, S.; Miyazaki, H.; Daibo, M.; Iijima, Y.; Saito, T.; Itoh, M.

Advances in Cryogenic Engineering - Transactions of the Cryogenic Engineering Conference - CEC, Volume 59. ed. / Susan Breon; Jennifer Marquardt; Thomas Peterson; Michael DiPirro; John Pfotenhauer; Jonathan Demko; James Fesmire; Arkadiy Klebaner; Sidney Yuan; Al Zeller; Peter Kittel; Gregory Nellis; Mark Zagarola. American Institute of Physics Inc., 2014. p. 732-738 (AIP Conference Proceedings; Vol. 1573).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Awaji, S, Oguro, H, Watanabe, K, Hanai, S, Ioka, S, Miyazaki, H, Daibo, M, Iijima, Y, Saito, T & Itoh, M 2014, Repairing and upgrading of the HTS insert in the 18T cryogen-free superconducting magnet. in S Breon, J Marquardt, T Peterson, M DiPirro, J Pfotenhauer, J Demko, J Fesmire, A Klebaner, S Yuan, A Zeller, P Kittel, G Nellis & M Zagarola (eds), Advances in Cryogenic Engineering - Transactions of the Cryogenic Engineering Conference - CEC, Volume 59. AIP Conference Proceedings, vol. 1573, American Institute of Physics Inc., pp. 732-738, 2013 Joint Cryogenic Engineering and International Cryogenic Materials Conferences, CEC/ICMC 2013, Anchorage, United States, 13/6/17. https://doi.org/10.1063/1.4860776

Awaji S, Oguro H, Watanabe K, Hanai S, Ioka S, Miyazaki H et al. Repairing and upgrading of the HTS insert in the 18T cryogen-free superconducting magnet. In Breon S, Marquardt J, Peterson T, DiPirro M, Pfotenhauer J, Demko J, Fesmire J, Klebaner A, Yuan S, Zeller A, Kittel P, Nellis G, Zagarola M, editors, Advances in Cryogenic Engineering - Transactions of the Cryogenic Engineering Conference - CEC, Volume 59. American Institute of Physics Inc. 2014. p. 732-738. (AIP Conference Proceedings). https://doi.org/10.1063/1.4860776

Awaji, S. ; Oguro, Hidetoshi ; Watanabe, K. ; Hanai, S. ; Ioka, S. ; Miyazaki, H. ; Daibo, M. ; Iijima, Y. ; Saito, T. ; Itoh, M. / Repairing and upgrading of the HTS insert in the 18T cryogen-free superconducting magnet. Advances in Cryogenic Engineering - Transactions of the Cryogenic Engineering Conference - CEC, Volume 59. editor / Susan Breon ; Jennifer Marquardt ; Thomas Peterson ; Michael DiPirro ; John Pfotenhauer ; Jonathan Demko ; James Fesmire ; Arkadiy Klebaner ; Sidney Yuan ; Al Zeller ; Peter Kittel ; Gregory Nellis ; Mark Zagarola. American Institute of Physics Inc., 2014. pp. 732-738 (AIP Conference Proceedings).

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abstract = " Since the development of the 18T cryogen-free superconducting magnet (18T-CSM) at the High Field Laboratory for Superconducting Materials (HFLSM), IMR, Tohoku University, it has been routinely utilized for the various high field researches such as the in-field materials processing and so on. After the Great East Japan Disaster, however, the 18T-CSM is under the repairing due to the serious damages of the system. At this time, a part of the middle Nb 3 Sn section coil and the Bi2223 inner most coil were renewed. The bronze-route Nb 3 Sn coil with a low ac-loss was adopted instead of the previous internal-Sn Nb 3 Sn coil for the reduction of the heat-generation during a field ramping. The new Bi2223 coil will generate the central field of 4.5 T under the background field of 15.5 T by the LTS outer coils, although the previous Bi2223 coil generated 2.5 T. Hence the 18T-CSM was successfully upgraded to the 20T-CSM. In addition to the Bi2223 insert, the Gd123 insert coil is being constructed as well. When the Gd123 insert coil is installed instead of the Bi2223 coil, it will be upgraded to the 22T-CSM from the 20T-CSM. ",

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