Title: Investigation of the Surface Resistance of a Niobium-Cavity at S-Band
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∝ψ2/3 (anomalous skin-effect). For negligible frozen-in flux the residual losses are proportional to ψ1.7±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.
Publication Year: 1971
Publication Date: 1971-06-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 14
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