Superconducting Nb/sub 3/Sn cavities with high quality factors and high critical flux densities

Journal Article · Wed Sep 01 00:00:00 EDT 1976 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.323278· OSTI ID:7269027

Hillenbrand, B; Martens, H

As considerable progress is expected to result from the use of high-T/sub c/ superconductors at microwave frequencies, we started a study of the microwave properties of Nb/sub 3/Sn. Preparation was done by exposing niobium cavities to a saturated tin atmosphere. Microwave measurements of the unloaded quality factor Q/sub 0/ and the critical flux density B/sup ac//sub c/ were performed in the TE/sub 011/ mode at 9.5 GHz. At 1.5 K low-field values of Q/sub 0/ up to 6 x 10/sup 9/ and B/sup ac//sub c/ values up to 100 mT with a Q/sub 0/ of 2.3 x 10/sup 9/ were obtained. At 4.2 K and at low magnetic flux densities a Q/sub 0/ of 2.7 x 10/sup 9/ was reached. (AIP)

• Research Organization: Siemens AG, Research Laboratories, D-8520 Erlangen, Federal Republic of Germany
• OSTI ID: 7269027
• Journal Information: J. Appl. Phys.; (United States), Vol. 47:9
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
43 PARTICLE ACCELERATORS
NIOBIUM BASE ALLOYS
SUPERCONDUCTING CAVITY RESONATORS
MICROWAVE EQUIPMENT
FILMS
LINEAR ACCELERATORS
MAGNETIC FLUX
MICROWAVE RADIATION
SUPERCONDUCTORS
TIN ALLOYS
TRANSITION TEMPERATURE
ACCELERATORS
ALLOYS
CAVITY RESONATORS
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
NIOBIUM ALLOYS
PHYSICAL PROPERTIES
RADIATIONS
SUPERCONDUCTING DEVICES
THERMODYNAMIC PROPERTIES
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