Share

A new method of surface resistance measurement with a niobium triaxial cavity working at 2 K.

Author(s) : LIANG C., PHILLIPS L., SUNDELIN R.

Type of article: Article

Summary

A 1.5 gigahertz superconducting niobium triaxial cavity has been fabricated to study residual surface resistance of superconducting materials at 2 K. The edge of a 25.4 mm or larger diameter sample is outside of the strong field region, a procedure which will greatly reduce edge effects and image current losses between the thin film and substrate. A detection limit of 0.05-microwatt power dissipation has been determined with a calibration heater, which corresponds to a surface resistance of 0.02 nano-ohm at a maximum cavity magnetic field of 250 G. Initial cavity testing was performed in a magnetically unshielded cryostat.

Details

  • Original title: A new method of surface resistance measurement with a niobium triaxial cavity working at 2 K.
  • Record ID : 1994-2056
  • Languages: English
  • Source: Rev. sci. Instrum. - vol. 64 - n. 7
  • Publication date: 1993/07
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (5)
See the source

Indexing