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VAMAS (Versailles project on Advanced Materials and Standards) intercomparison of critical current measurements on niobium-tin superconductors: a summary report.

Author(s) : WADA H., WALTERS C. R., GOODRICH L. F., TACHIKAWA K.

Type of article: Article

Summary

In a first series of measurements, three different sample conductors were used and participants made measurements using their own techniques. As a result, coefficients of variation for these samples at 12 T turned out to be 8-29.9%. A major source of these variations was attributed to strain sensitivity of the niobium-tin conductors. Thus, the second series of measurements were done on one sample conductor and under specified measurement conditions, particularly in terms of specimen strain. The coefficient of variation decreased to 2.2%, which is regarded as a reasonable base for future establishment of an international standard measurement method.

Details

  • Original title: VAMAS (Versailles project on Advanced Materials and Standards) intercomparison of critical current measurements on niobium-tin superconductors: a summary report.
  • Record ID : 1995-2761
  • Languages: English
  • Source: Cryogenics - vol. 34 - n. 11
  • Publication date: 1994/11

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