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Investigation of the surface resistance of a niobium-cavity at s-band

Authors
  • Kneisel, P.
  • Stoltz, O.
  • Halbritter, J.
Publication Date
Jan 01, 1971
Identifiers
DOI: 10.1109/TNS.1971.4325993
OAI: oai:inspirehep.net:70301
Source
INSPIRE-HEP
Keywords
License
Unknown
External links

Abstract

Measurements of the RF-residual surface resistance of superconducting niobium have been carried out between 2-4 GHz. The experiments show that also for type II superconductors like niobium the losses due to frozen-in magnetic flux can be described by Rres¿¿2/3 (anomalous skin-effect). For negligible frozen-in flux the residual losses are proportional to ¿1.7±0.2 like in the case of lead, indicating that a general mechanism seems to be responsible for these residual losses. By electrochemical oxidation we have achieved fields up to 325 G in the TM011-mode.

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