Prospects for the use of high temperature superconductors in high field accelerator magnets

High-field Josephson magnetic resonance in high-temperature superconductors

Technical Physics Letters ◽

10.1134/s1063785006070157 ◽

2006 ◽

Vol 32 (7) ◽

pp. 600-602

Author(s):

L. V. Belevtsov ◽

A. I. D’yachenko ◽

A. A. Kostikov

Keyword(s):

High Temperature ◽

Magnetic Resonance ◽

High Field ◽

High Temperature Superconductors

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R & D for accelerator magnets with react and wind high temperature superconductors

IEEE Transactions on Applied Superconductivity ◽

10.1109/tasc.2002.1018355 ◽

2002 ◽

Vol 12 (1) ◽

pp. 75-80 ◽

Cited By ~ 18

Author(s):

R. Gupta ◽

M. Anerella ◽

J. Cozzolino ◽

J. Escallier ◽

G. Ganetis ◽

...

Keyword(s):

High Temperature ◽

High Temperature Superconductors ◽

Accelerator Magnets

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Dipole Magnets Above 20 Tesla: Research Needs for a Path via High-Temperature Superconducting REBCO Conductors

Instruments ◽

10.3390/instruments3040062 ◽

2019 ◽

Vol 3 (4) ◽

pp. 62 ◽

Cited By ~ 5

Author(s):

Xiaorong Wang ◽

Stephen A. Gourlay ◽

Soren O. Prestemon

Keyword(s):

High Temperature ◽

Technology Development ◽

High Temperature Superconductors ◽

National Laboratory ◽

Dipole Field ◽

Research Needs ◽

Magnet Technology ◽

Future Technology ◽

The Status ◽

Accelerator Magnets

To enable the physics research that continues to deepen our understanding of the Universe, future circular colliders will require a critical and unique instrument—magnets that can generate a dipole field of 20 T and above. However, today’s maturing magnet technology for low-temperature superconductors (Nb-Ti and Nb 3 Sn) can lead to a maximum dipole field of around 16 T. High-temperature superconductors such as REBCO can, in principle, generate higher dipole fields but significant challenges exist for both conductor and magnet technology. To address these challenges, several critical research needs, including direct needs on instrumentation and measurements, are identified to push for the maximum dipole fields a REBCO accelerator magnet can generate. We discuss the research needs by reviewing the current results and outlining the perspectives for future technology development, followed by a brief update on the status of the technology development at Lawrence Berkeley National Laboratory. We present a roadmap for the next decade to develop 20 T-class REBCO accelerator magnets as an enabling instrument for future energy-frontier accelerator complex.

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Quench Detection and Protection for High-Temperature Superconductor Accelerator Magnets

Instruments ◽

10.3390/instruments5030027 ◽

2021 ◽

Vol 5 (3) ◽

pp. 27

Author(s):

Maxim Marchevsky

Keyword(s):

High Temperature ◽

High Temperature Superconductor ◽

Hot Spot ◽

High Temperature Superconductors ◽

Zone Formation ◽

Normal Zone ◽

Normal Zone Propagation ◽

Accelerator Magnets ◽

Detection Schemes ◽

Temperature Margin

High-temperature superconductors (HTS) are being increasingly used for magnet applications. One of the known challenges of practical conductors made with high-temperature superconductor materials is a slow normal zone propagation velocity resulting from a large superconducting temperature margin in combination with a higher heat capacity compared to conventional low-temperature superconductors (LTS). As a result, traditional voltage-based quench detection schemes may be ineffective for detecting normal zone formation in superconducting accelerator magnet windings. A developing hot spot may reach high temperatures and destroy the conductor before a practically measurable resistive voltage is detected. The present paper discusses various approaches to mitigating this problem, specifically focusing on recently developed non-voltage techniques for quench detection.

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