Record fast-cycling accelerator magnet based on HTS conductor

Piekarz, H.; Hays, S.; Blowers, Jamie; Claypool, Brad; Shiltsev, Vladimir

doi:10.1016/j.nima.2019.162490

Cited by 20 publications

(13 citation statements)

References 14 publications

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“…Since their initial discovery in 1986, high-temperature superconductors [1] have made a long way toward practical use in applications, such as record-field solenoids [2][3][4], energy storage [5], fault current limiters [6][7][8] and transmission lines [9,10]. More demanding applications, such as high-field magnets for particle accelerators, are presently on the horizon [11][12][13][14][15], where HTS conductors will operate close to their stress limits, and will have to satisfy necessary mechanical, electromagnetic and thermal stability criteria. One key aspect of a safe and reliable operation of any accelerator magnet is the ability to sustain and mitigate spontaneous quenching-a phenomenon where one or several superconducting strands suddenly transition into a normal state.…”

Section: Introductionmentioning

confidence: 99%

Quench Detection and Protection for High-Temperature Superconductor Accelerator Magnets

Marchevsky

2021

Instruments

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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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Section: Introductionmentioning

confidence: 99%

Quench Detection and Protection for High-Temperature Superconductor Accelerator Magnets

Marchevsky

2021

Instruments

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“…x 10 mm (vert.) was successfully tested [58]. Preparations are now underway to increase this test magnet B-field to 0.9 T and the ramping rates up to (500-600) T/s.…”

Section: Fast-ramping Magnet Randdmentioning

confidence: 99%

Future Collider Options for the US

Bhat¹,

S.²,

Ambrosio³

et al. 2022

Preprint

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The United States has a rich history in high energy particle accelerators and collidersboth lepton and hadron machines, which have enabled several major discoveries in elementary particle physics. To ensure continued progress in the field, U.S. leadership as a key partner in building next generation collider facilities abroad is essential; also critically important is the exploring of options to host a future collider in the U.S. The "Snowmass" study and the subsequent Particle Physics Project Prioritization Panel (P5) process provide the timely opportunity to develop strategies for both. What we do now will shape the future of our field and whether the U.S. will remain a world leader in these areas. In this white paper, we briefly discuss the US engagement in proposed collider projects abroad and describe future collider options for the U.S. We also call for initiating an integrated R&D program for future colliders.

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“…That would require either better or new magnets and RF acceleration system, and/or to decrease the cycle time (again, new magnets and RF might be needed) -that usually implies high cost and significant increase of the facility AC power consumption. There are several approaches actively pursed by the RCS machine designers and engineers for the power upgrades and future machines such as more efficient SC magnets, like 4 T/s ones for the FAIR project in Darmstadt (Germany) built with NbTi SC cables [9] or 12 T/s HTS-based magnet prototype recently tested at FNAL [10]; FFAG (fixed field alternating gradient) accelerators [11]; also, under development are more efficient power supplies with capacitive energy storage and recovery, and on more economical RF power sources such as 80% efficient klystrons, magnetrons, and solid-state ones (compare to current ∼ 55% ) [12].…”

Section: Pos(ichep2020)039mentioning

confidence: 99%

Accelerators for HEP: Challenges and R&D

Shiltsev¹

2020

Proceedings of 40th International Conference on High Energy Physics — PoS(ICHEP2020)

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Particle accelerators are arguably the most effective tools for the particle physics research. The physics needs continuously push us to invent novel ways to increase energy and improve performance of accelerators, reduce their cost and make them more power efficient. Here we briefly overview three main families of modern and future accelerators for HEP-high intensity accelerators for neutrino research, particle factories for the electro-weak physics and Higgs studies, and post-LHC energy frontier colliders-and discuss corresponding ongoing or planned accelerator R&D topics and objectives.

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Record fast-cycling accelerator magnet based on HTS conductor

Cited by 20 publications

References 14 publications

Quench Detection and Protection for High-Temperature Superconductor Accelerator Magnets

Quench Detection and Protection for High-Temperature Superconductor Accelerator Magnets

Future Collider Options for the US

Accelerators for HEP: Challenges and R&D

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