Nb&amp;lt;inf&amp;gt;3&amp;lt;/inf&amp;gt;Sn dipole magnet by wind and react process

Ishibashi, Kenji; Koizumi, M.; Hosoyama, K.; Kobayashi, M.; Horigami, T.

doi:10.1109/tmag.1981.1061080

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…A small 0.35 m long dipole with a free bore of 62 mm was designed, manufactured, and tested by a collaboration between KEK and the Toshiba Research and Development Center (Ishibashi et al 1981). To our knowledge, it was perhaps the first direct involvement of industry in Nb 3 Sn accelerator magnet R&D.…”

Section: Kek-toshiba Small-scale Nb 3 Sn Dipole (1980)mentioning

confidence: 99%

Nb3Sn Accelerator Magnets: The Early Days (1960s–1980s)

Rossi

Zlobin

2019

Nb3Sn Accelerator Magnets

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Since Nb 3 Sn became available in the form of relatively long tapes in the early 1960s, it was considered for high-field magnets thanks to its high upper critical magnetic field and critical temperature. This chapter is a review of the effort accomplished by the community in the first 25 years of development of Nb 3 Sn accelerator magnets, and an attempt to understand why it took so long before this technology became successful. IntroductionDiscovery and major advancements in the understanding and development of practical type II superconductors in the 1950s and 1960s made it possible to employ them in superconducting magnets, particularly, in accelerator magnets used for steering charged particle beams. The superconducting properties of Nb 3 Sn were discovered in the early 1960s, and soon it was available in form of tapes (or ribbons) produced by the surface diffusion process. Shortly afterwards an alternative concept based on solid-state diffusion was introduced. This principle has been used since the 1970s to fabricate Nb 3 Sn composite wires by the so-called bronze route. In 1974 the internal tin (IT) process was developed, which allowed overcoming the limitation of the bronze method to reach a high critical current density J c due to the limited content of tin in bronze. The availability of IT composite wires eventually proved to be a key asset for high-field Nb 3 Sn magnet research and development (R&D) for accelerators. The year-by-year history of Nb 3 Sn wire development can be found in Foner and Schwartz (1981).

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Section: Kek-toshiba Small-scale Nb 3 Sn Dipole (1980)mentioning

confidence: 99%

Nb3Sn Accelerator Magnets: The Early Days (1960s–1980s)

Rossi

Zlobin

2019

Nb3Sn Accelerator Magnets

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“…Nb 3 Sn-based magnets are prepared following the wind & react approach [4]. Unlike ductile Nb-alloys, Nb 3 Sn is brittle and strain sensitive intermetallic compound, which cannot be directly drawn in the form of a wire.…”

Section: Introductionmentioning

confidence: 99%

Tomography analysis tool: an application for image analysis based on unsupervised machine learning

et al. 2022

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We developed a graphical user interface (GUI) to analyse tomographic images of superconducting Nb3Sn wires designed for the next generation accelerator magnets. The Tomography Analysis Tool (TAT) relies on the k-means algorithm, an unsupervised machine learning technique which is widely used to partition images into separated clusters. The GUI is compatible with both Linux and Windows operating systems. The software reliability was tested by optical inspecting the tomographic images superimposed on the clustered image obtained by the k-means algorithm. TAT was proven to correctly segment the various components of the Nb3Sn superconducting wires with single pixel precision. Finally, this software can be a useful tool for the scientific community to segment and analyse quickly and reproducibly tomographic images.

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