Measurement of the critical current and transient characteristics of a high-temperature superconductor tube using a pulsed current supply.

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The transient response of a melt-cast-processed BSCCO-2212 superconductor tube is investigated by using a pulsed current source. It was found that (1) the maximum induced current and the excitation current at field penetration increase with the maximum excitation current, and (2) there is a time delay between peak excitation current and peak magnetic field inside the superconductor. These observations can be explained by the concept of magnetic diffusion. The ac steady-state critical current of the superconductor was found to depend on the magnitude of the current increment. The critical current determined by using the pulsed current system agrees fairly well ... continued below

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22 p.

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Cha, Y. S. August 27, 1998.

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The transient response of a melt-cast-processed BSCCO-2212 superconductor tube is investigated by using a pulsed current source. It was found that (1) the maximum induced current and the excitation current at field penetration increase with the maximum excitation current, and (2) there is a time delay between peak excitation current and peak magnetic field inside the superconductor. These observations can be explained by the concept of magnetic diffusion. The ac steady-state critical current of the superconductor was found to depend on the magnitude of the current increment. The critical current determined by using the pulsed current system agrees fairly well with the ac steady-state critical current determined by using relatively large current increment.

Physical Description

22 p.

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OSTI as DE00010671

Medium: P; Size: 22 pages

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  • 1998 Applied Superconductivity Conference, Palm Desert, CA (US), 09/13/1998--09/18/1998

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  • Report No.: ANL/ET/CP-95791
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10671
  • Archival Resource Key: ark:/67531/metadc624296

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  • August 27, 1998

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 10, 2017, 3:15 p.m.

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Cha, Y. S. Measurement of the critical current and transient characteristics of a high-temperature superconductor tube using a pulsed current supply., article, August 27, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc624296/: accessed November 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.