SULTAN measurement and qualification: ITER-US-LLNL-NMARTOVETSKY- 092008

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Measuring the characteristics of full scale ITER CICC at SULTAN is the critical qualification test. If volt-ampere characteristic (VAC) or volt-temperature characteristic (VTC) are distorted, the criterion of 10 uV/m may not be a valid criterion to judge the conductor performance. Only measurements with a clear absence or low signals from the current distribution should be considered as quantitatively representative, although in some obvious circumstances one can judge if a conductor will meet or fail ITER requirements. SULTAN full scale ITER CICC testing should be done with all measures taken to ensure uniform current redistribution. A full removal of Cr ... continued below

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Martovetsky, N N September 21, 2006.

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Measuring the characteristics of full scale ITER CICC at SULTAN is the critical qualification test. If volt-ampere characteristic (VAC) or volt-temperature characteristic (VTC) are distorted, the criterion of 10 uV/m may not be a valid criterion to judge the conductor performance. Only measurements with a clear absence or low signals from the current distribution should be considered as quantitatively representative, although in some obvious circumstances one can judge if a conductor will meet or fail ITER requirements. SULTAN full scale ITER CICC testing should be done with all measures taken to ensure uniform current redistribution. A full removal of Cr plating in the joint area and complete solder filling of the joints (with provision of the central channel for helium flow) should be mandatory for DC qualification samples for ITER. Also, T and I should be increased slowly that an equilibrium could be established for accurate measurement of Tcs, Ic and N. It is also desirable to go up in down in current and/or temperature (within stable range) to make sure that the equilibrium is reached.

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PDF-file: 25 pages; size: 1.1 Mbytes

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  • Report No.: UCRL-TR-228957
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/902269 | External Link
  • Office of Scientific & Technical Information Report Number: 902269
  • Archival Resource Key: ark:/67531/metadc882266

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  • September 21, 2006

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 2, 2016, 1:16 p.m.

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Martovetsky, N N. SULTAN measurement and qualification: ITER-US-LLNL-NMARTOVETSKY- 092008, report, September 21, 2006; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc882266/: accessed November 13, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.