Preliminary results of the partial array LCT coil tests

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The Large Coil Task (LCT) is a collaboration between the US, Euratom, Japan, and Switzerland for the production and testing of 2.5 x 3.5-m bore, superconducting 8-T magnets. The definitive tests in the design configuration, the six coils arrayed in a compact torus, will begin in 1985. Partial-array tests are being done in 1984. In January the initial cooldown of two coils was aborted because of helium-to-vacuum leaks that developed in certain seal welds when the coil temperatures were 170 to 180 K. In July three adjacent coils (designated JA, GD, CH) were cooled and in August two were energized ... continued below

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Pages: 5

Creation Information

Luton, J.N.; Cogswell, F.D.; Dresner, L.; Friesinger, G.M.; Gray, W.H.; Iwasa, Y. et al. September 10, 1984.

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Description

The Large Coil Task (LCT) is a collaboration between the US, Euratom, Japan, and Switzerland for the production and testing of 2.5 x 3.5-m bore, superconducting 8-T magnets. The definitive tests in the design configuration, the six coils arrayed in a compact torus, will begin in 1985. Partial-array tests are being done in 1984. In January the initial cooldown of two coils was aborted because of helium-to-vacuum leaks that developed in certain seal welds when the coil temperatures were 170 to 180 K. In July three adjacent coils (designated JA, GD, CH) were cooled and in August two were energized to the limits of the test facility. An overview of the results are presented, including facility, cooldown (warmup has not yet begun), energization, dump, recovery from intentional normal zones, strain, and displacement, for operation up to 100% of design current but below full field and stress. These initial results are highly encouraging.

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Pages: 5

Notes

NTIS, PC A02/MF A01; 1.

Source

  • Applied superconductivity conference, San Diego, CA, USA, 9 Sep 1984

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  • Other: DE85001610
  • Report No.: CONF-840937-4-Draft
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 6439480
  • Archival Resource Key: ark:/67531/metadc1205208

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Creation Date

  • September 10, 1984

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

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  • Oct. 18, 2018, 12:36 p.m.

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Luton, J.N.; Cogswell, F.D.; Dresner, L.; Friesinger, G.M.; Gray, W.H.; Iwasa, Y. et al. Preliminary results of the partial array LCT coil tests, article, September 10, 1984; United States. (digital.library.unt.edu/ark:/67531/metadc1205208/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.