Design and fabrication of end spacers for a 13T Nb{sub 3}Sn dipole magnet

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A 13 Tesia R&D dipole magnet is currently being constructed using Nb{sub 3}Sn superconducting cable. The four-layer ``cosine-theta`` magnet uses a wide cable ({approximately}15 mm) that will undergo a 650 C reaction after each layer is wound. About 75 bronze spacers at the magnet ``ends`` separate the winding blocks in such a way that the stored strain energy in the cable is minimized and the integrated field harmonics are reduced. Wax prototypes of the designed spacers were made on a 5-axis milling machine. This method of rapid prototyping required no tooling and enabled us to produce a large number of ... continued below

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6 p.

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Caspi, S.; Ghiorso, W.B. & Wandesforde, A. October 17, 1994.

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Description

A 13 Tesia R&D dipole magnet is currently being constructed using Nb{sub 3}Sn superconducting cable. The four-layer ``cosine-theta`` magnet uses a wide cable ({approximately}15 mm) that will undergo a 650 C reaction after each layer is wound. About 75 bronze spacers at the magnet ``ends`` separate the winding blocks in such a way that the stored strain energy in the cable is minimized and the integrated field harmonics are reduced. Wax prototypes of the designed spacers were made on a 5-axis milling machine. This method of rapid prototyping required no tooling and enabled us to produce a large number of different end spacers that can be physically inspected and repeatedly modified before final prototypes are made. Spacers were originally machined from wax billets which were later cast in bronze.

Physical Description

6 p.

Notes

INIS; OSTI as DE95012387

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  • Applied superconductivity conference, Boston, MA (United States), 16-21 Oct 1994

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  • Other: DE95012387
  • Report No.: LBL--35423
  • Report No.: SC-MAG--459;CONF-941013--44
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 80396
  • Archival Resource Key: ark:/67531/metadc741065

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • October 17, 1994

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  • Oct. 19, 2015, 7:39 p.m.

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  • April 4, 2016, 9:11 p.m.

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Caspi, S.; Ghiorso, W.B. & Wandesforde, A. Design and fabrication of end spacers for a 13T Nb{sub 3}Sn dipole magnet, article, October 17, 1994; California. (digital.library.unt.edu/ark:/67531/metadc741065/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.