Development of the Butt Joint for the ITER Central Solenoid

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The ITER Central Solenoid (CS) requires compact and reliable joints for its Cable-in-Conduit Conductor (CICC). The baseline design is a diffusion bonded butt joint. In such a joint the mating cables are compacted to a very low void fraction in a copper sleeve and then heat treated. After the heat treatment the ends are cut, polished and aligned against each other and then diffusion bonded under high compression in a vacuum chamber at 750 C. The jacket is then welded on the conductor to complete the joint, which remarkably does not require more room than a regular conductor. This joint ... continued below

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6 p. (0.4 MB)

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Martovetsky, N. N. August 23, 2006.

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The ITER Central Solenoid (CS) requires compact and reliable joints for its Cable-in-Conduit Conductor (CICC). The baseline design is a diffusion bonded butt joint. In such a joint the mating cables are compacted to a very low void fraction in a copper sleeve and then heat treated. After the heat treatment the ends are cut, polished and aligned against each other and then diffusion bonded under high compression in a vacuum chamber at 750 C. The jacket is then welded on the conductor to complete the joint, which remarkably does not require more room than a regular conductor. This joint design is based on a proven concept developed for the ITER CS Model Coil that was successfully tested in the previous R&D phase.

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6 p. (0.4 MB)

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  • Presented at: Applied Superconductivity Conference, Seattle, WA, United States, Aug 27 - Sep 01, 2006

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  • Report No.: UCRL-CONF-223959
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 894763
  • Archival Resource Key: ark:/67531/metadc880338

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Office of Scientific & Technical Information Technical Reports

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  • August 23, 2006

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  • Sept. 22, 2016, 2:13 a.m.

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  • April 17, 2017, 12:19 p.m.

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Martovetsky, N. N. Development of the Butt Joint for the ITER Central Solenoid, article, August 23, 2006; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc880338/: accessed December 11, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.