Superconducting Nb$sub 3$Sn-cavities

Conference · Sat Mar 01 04:00:00 EDT 1975 · IEEE Trans. Magn., v. MAG-11, no. 2, pp. 420-422

OSTI ID:4128024

Hillenbrand, B; Martens, H; Pfister, H; Schnitzke, K; Ziegler, G

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$sup -6$ $Omega$ were measured with TE$sub 011$ cavities at 9.5 GHz. (auth)

• Research Organization: Siemens AG, Research Labs., Erlangen, Ger.
• NSA Number: NSA-33-017029
• OSTI ID: 4128024
• Conference Information: Journal Name: IEEE Trans. Magn., v. MAG-11, no. 2, pp. 420-422
• Country of Publication: United States
• Language: English

Related Subjects

*SUPERCONDUCTING CAVITY RESONATORS-- CRITICAL FIELD
420201* --Engineering--Facilities & Equipment--Cryogenic & Superconducting Equipment & Devices
GHZ RANGE 01-100
INTERMETALLIC COMPOUNDS
N42220* --Engineering--Facilities & Equipment--Cryogenic & Superconducting Equipment & Devices
NIOBIUM BASE ALLOYS
QUALITY FACTOR
SURFACE TREATMENTS
TIN ALLOYS