Electromagnetic Design, Fabrication, and Test of LPF1: A 10.2-T Common-Coil Dipole Magnet With Graded Coil Configuration

Wang, Chengtao; Cheng, Da; Zhang, Kai; Kong, Ershuai; Zhang, Zhan; Wei, Shaoqing; Gong, Lingling; Peng, Quanling; Yang, Xiudong; Liu, Huajun; Tan, Yunfei; Zhao, Tao; Zhu, Yanmin; Zhao, Yu; Liao, Hean; Zhu, Zi; Chen, Fusan; Xu, Qingjin

doi:10.1109/tasc.2019.2902983

Cited by 11 publications

(12 citation statements)

References 16 publications

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“…LPF1 was tested at 4.2 K. The magnet reached quench plateau around 10.2 T after the thirteen quenches. The parameters of the design, the process of the fabrication and the test performance of LPF1 are reported in [83].…”

Section: High Field Accelerator Magnet Randd In Chinamentioning

confidence: 99%

Superconducting magnets and technologies for future colliders

et al. 2022

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The implications of accelerator magnet R&D towards future colliders are reviewed and discussed. It starts with a brief overview of the present and future accelerator facilities which rely on the significant advances and innovations in key technologies. Then advances and needs for present key projects and studies are expanded on specific examples. This provides the lead to discuss the recent progress in accelerator magnet R&D and the future plans. We conclude with a summary of our view of the major development drivers and future perspectives.

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Section: High Field Accelerator Magnet Randd In Chinamentioning

confidence: 99%

Superconducting magnets and technologies for future colliders

et al. 2022

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“…The magnet is composed of two Nb 3 Sn coils and four NbTi coils. The detailed mechanical structure and design of the magnet are described in [10], [11]. The stress simulations of the magnet include three load steps: assembly, cool down, and magnet excitation.…”

Section: The Stress Analysis Of the Sc Magnet And The Strandmentioning

confidence: 99%

“…Secondly, based on the actual SC strand structure inside the SC coil, the homogenization finite element model of the strand is built, and effective material coefficients are calculated. Finally, a stress analysis of the SC magnet named LPF1 developed at IHEP [10], [11] is performed, which simulates three load steps: magnet assembly, cool down and excitation with effective material coefficients and isotropic material coefficients. The stress in the filament and strand is recovered and discussed based on the simulation results for the magnet during excitation.…”

Section: Introductionmentioning

confidence: 99%

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Study on Internal Strain Distribution of the High-Field Nb₃Sn Superconducting Accelerator Magnets With Homogenization Theory

Zhang

2022

IEEE Access

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To fabricate 10-16 Tesla high-field accelerator magnets, the high-Jc Nb 3 Sn superconductor is one of the most practical choices. However, it is a brittle material and is strain-sensitive. To reduce the potential Jc degradation of the conductor, it is crucial to accurately evaluate the stress of the coils owing to the large Lorentz force during magnet excitation. In the traditional stress analysis of magnets, the coils are usually regarded as homogenized structures using isotropic material coefficients; however, most superconducting (SC) coils have hierarchical and complicated structures. To obtain a more accurate estimation, it is necessary to consider the detailed internal structure of the coils during stress analysis. In this study, the homogenization method was applied to multi-scale stress analysis of a high-field accelerator SC magnet. The effective material coefficients of Nb 3 Sn coils were calculated using this method. Stress analysis of the magnet was performed using the effective material coefficients and isotropic material coefficients for comparison. Compared with the result obtained using isotropic material coefficients, the Von-Mises stress of the coil using effective material coefficients is larger at different load steps. The stress level of most Nb 3 Sn filaments in the strand was higher than that of the coil. The maximum stress of the Nb 3 Sn filaments appeared in the strand contact regions. In addition, there was a significant difference in the average stress of all materials in the strand. These findings will help develop more accurate analysis and simulation models for high-field SC magnets.INDEX TERMS Homogenization method, Nb 3 Sn, stress analysis, superconducting magnet.

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“…To strengthen the mechanical properties of the coil, the IBS tape was wound in parallel with a high-strength stainless steel tape, which also is used as the insulation between turns and the IBS tape was co-wound. The two IBS racetrack coils were placed into LPF series dipole magnets and then tested under 10 T background fields [67]. Figure 16 shows the quench currents of the two IBS racetrack coils together with the I c of the IBS short sample.…”

Section: Ibs Randd For High Field Applicationsmentioning

confidence: 99%

Progress of ultra-high-field superconducting magnets in China

Wang¹,

Liu²,

Zheng³

et al. 2021

Supercond. Sci. Technol.

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High magnetic fields play a critical role in the development of modern science and technology, breeding many significant scientific discoveries and boosting the generation of new technologies. In the last few years, China has untaken a great deal of work on the application of Ultra-High-Field (UHF) superconducting magnet technology, such as for the Synergetic Extreme Condition User Facility (SECUF) in Beijing, the UHF nuclear magnetic resonance (NMR)/magnetic resonance imaging (MRI), nuclear fusion energy, particle accelerator, and so on. This paper reports the research status of UHF superconducting magnets in China from different perspectives, including design options, technical features, experimental progress, opportunities and challenges.

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Electromagnetic Design, Fabrication, and Test of LPF1: A 10.2-T Common-Coil Dipole Magnet With Graded Coil Configuration

Cited by 11 publications

References 16 publications

Superconducting magnets and technologies for future colliders

Superconducting magnets and technologies for future colliders

Study on Internal Strain Distribution of the High-Field Nb₃Sn Superconducting Accelerator Magnets With Homogenization Theory

Progress of ultra-high-field superconducting magnets in China

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