Superconducting Nb/sub 3/Sn-cavities
Conference
·
· IEEE Trans. Magn.; (United States)
OSTI ID:7297902
Microwave critical magnetic flux densities B/sub c//sup ac/ up to 160 mT and higher than B/sub c1/ were obtained with niobium cavities by special surface treatments. Breakdown in this flux density region occurs by a thermal breakdown mechanism in which no superconducting critical flux density is involved. Considerable increase in B/sub c//sup ac/ may be expected with high T/sub c/ superconductors such as Nb/sub 3/Sn. Nb/sub 3/Sn layers were produced on niobium structures by exposing them to a saturated Sn vapor at 1000/sup 0/C. B/sub c//sup ac/ values up to 40 mT and surface resistances smaller than 10/sup -6/ ..cap omega.. were measured with TE/sub 011/ cavities at 9.5 GHz. (auth)
- Research Organization:
- Siemens AG, Research Labs., Erlangen, Ger.
- NSA Number:
- NSA-33-17029
- OSTI ID:
- 7297902
- Conference Information:
- Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: MAG-11:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360100 -- Metals & Alloys
420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
CAVITY RESONATORS
CRITICAL FIELD
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
INTERMETALLIC COMPOUNDS
MAGNETIC FIELDS
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
QUALITY FACTOR
SUPERCONDUCTING CAVITY RESONATORS
SUPERCONDUCTING DEVICES
SURFACE TREATMENTS
TIN ALLOYS
360100 -- Metals & Alloys
420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
CAVITY RESONATORS
CRITICAL FIELD
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
INTERMETALLIC COMPOUNDS
MAGNETIC FIELDS
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
QUALITY FACTOR
SUPERCONDUCTING CAVITY RESONATORS
SUPERCONDUCTING DEVICES
SURFACE TREATMENTS
TIN ALLOYS