Superconducting joint of REBCO wires for MRI magnet

Mukoyama, S.; Nakai, A.; Sakamoto, H.; Matsumoto, Shinji; Nishijima, G.; Hamada, Mamoru; Saito, Kazuyoshi; Miyoshi, Yasuyuki

doi:10.1088/1742-6596/1054/1/012038

Cited by 38 publications

(23 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These prototype magnets were tape wounded and operating at 20 K. There are still pending challenges before manufacturing a viable commercial HTS scanner. These include the conductor properties and price, 12,42 availability of joints for persistent operation, 70–72 and safe active quench protection systems 55,73 …”

Section: Accessible Magnet Configurationsmentioning

confidence: 99%

“…69 These prototype magnets were tape wounded and operating at 20 K. There are still pending challenges before manufacturing a viable commercial HTS scanner. These include the conductor properties and price, 12,42 availability of joints for persistent operation, [70][71][72] and safe active quench protection systems. 55,73 Table 1 summarizes the most relevant characteristics of potentially accessible systems, comparing them among the standard liquid heliumbathed NbTi magnet, new conduction-cooled NbTi magnets, and prototype conduction-cooled HTS-based magnets.…”

Section: Reduced Liquid Helium Mrimentioning

confidence: 99%

See 1 more Smart Citation

Superconducting magnet designs and MRI accessibility: A review

2023

View full text Add to dashboard Cite

Presently, magnetic resonance imaging (MRI) magnets must deliver excellent magnetic field (B0) uniformity to achieve optimum image quality. Long magnets can satisfy the homogeneity requirements but require considerable superconducting material. These designs result in large, heavy, and costly systems that aggravate as field strength increases. Furthermore, the tight temperature tolerance of niobium titanium magnets adds instability to the system and requires operation at liquid helium temperature. These issues are crucial factors in the disparity of MR density and field strength use across the globe. Low‐income settings show reduced access to MRI, especially to high field strengths. This article summarizes the proposed modifications to MRI superconducting magnet design and their impact on accessibility, including compact, reduced liquid helium, and specialty systems. Reducing the amount of superconductor inevitably entails shrinking the magnet size, resulting in higher field inhomogeneity. This work also reviews the state‐of‐the‐art imaging and reconstruction methods to overcome this issue. Finally, we summarize the current and future challenges and opportunities in the design of accessible MRI.

show abstract

Section: Accessible Magnet Configurationsmentioning

confidence: 99%

Section: Reduced Liquid Helium Mrimentioning

confidence: 99%

Superconducting magnet designs and MRI accessibility: A review

2023

View full text Add to dashboard Cite

show abstract

“…For example, a thin layer of superconductive material can be grown/deposited on a suitable substrate producing thin-film coated conductors which are then made into a coil to serve as a source of high magnetic field in NMR as well as in MRI or other devices. 7,8 Another REBCO form, single-domain superconducting bulks, can be produced by various melt-growth processes. 9 Such bulks are used to trap strong magnetic fields or for selfstabilizing magnetic levitation (through quantum locking).…”

Section: Introductionmentioning

confidence: 99%

Novel chemical recycling process of REBCO materials showcased on TSMG-processed waste

Sklenka,

Jankovský,

Hlásek

et al. 2024

J. Mater. Chem. C

View full text Add to dashboard Cite

show abstract

“…A method of SC jointing using a liquid solution containing superconducting ReBCO materials and further heat treatment was proposed in [7] in which the authors achieved a critical current value of 155 A at 77 K in a self field. Nevertheless, at this moment there is no industrial technology for supercoducting joint creation which provides irreversibility and stability of the joint with high critical and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Superconducting joint fabrication for HTS second generation GdBCO/YBCO tapes

Kulikov

Krylova

Yashkin

et al. 2019

Supercond. Sci. Technol.

View full text Add to dashboard Cite

In this work, the development of a superconducting joint between GdBa 2 Cu 3 O 7−x -based secondgeneration high temperature superconducting tapes using a thin YBa 2 Cu 3 O 7−x intermediate layer is presented. The critical current of the superconducting joint was 18 A, which is about 30% of the current in the original tape. The persistent field decay of the one-turn loop showed a joint resistance of less than 6•10 −13 Ω at 77 K.

show abstract

Superconducting joint of REBCO wires for MRI magnet

Cited by 38 publications

References 3 publications

Superconducting magnet designs and MRI accessibility: A review

Superconducting magnet designs and MRI accessibility: A review

Novel chemical recycling process of REBCO materials showcased on TSMG-processed waste

Superconducting joint fabrication for HTS second generation GdBCO/YBCO tapes

Contact Info

Product

Resources

About