Published 1975
| Version v1
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Use of the hard superconductor Nb3Sn in microwave resonators
Creators
- 1. Siemens A.G., Erlangen (F.R. Germany). Forschungslaboratorium
Description
The use of superconductors in microwave resonators leads to a decrease in the wall loss by four to five powers of ten. Whereas the alternating field losses above Bsub(c1) increase strongly with technical frequencies, this does not apply to the microwave region. Compared to the usual niobium which is used at T < 2 K, hard superconductors with high Tsub(c) such as Nb3Sn offer the chance of greater field strengths and higher permissible working temperatures. Measurements on superconducting cavity resonators are reported on with Nb3Sn surfaces. At 4.2 K, the quality was up to 50 times better than with the corresponding Nb resonators. (orig./LH)
Availability note (English)
MF available from INIS under the Report Number.Abstract (German)
Die Anwendung von Supraleitern in Mikrowellenresonatoren gestattet eine Verringerung der Wandverluste um vier bis fuenf Zehnerpotenzen. Waehrend bei technischen Frequenzen die Wechselfeldverluste oberhalb Bsub(c1) stark ansteigen, gilt dies nicht im Mikrowellenbereich. Im Vergleich zu dem bisher ueblichen Niob, das bei T < 2 K betrieben wird, bieten harte Supraleiter mit hohem Tsub(c) wie Nb3Sn die Chance hoeherer Feldstaerken und hoeherer zulaessiger Arbeitstemperaturen. Es wird ueber Messungen an supraleitenden Hohlraumresonatoren mit Nb3Sn-Oberflaechen berichtet. Bei 4,2 K lag die Guete bis um den Faktor 50 hoeher als bei entsprechenden Nb-Resonatoren. (orig.)
Files
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Additional details
Additional titles
- Original title (German)
- Die Verwendung des harten Supraleiters Nb
Publishing Information
- Imprint Pagination
- 9 p.
- Report number
- AED-Conf--75-170-008
Conference
- Title
- General meeting of the Deutsche Gesellschaft fuer Metallkunde e.V.
- Dates
- 20 May 1975.
- Place
- Nuernberg, F.R. Germany.
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 6208022
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S43: PARTICLE ACCELERATORS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- AUGER ELECTRON SPECTROSCOPY; CAVITY RESONATORS; GHZ RANGE 01-100; INTERMETALLIC COMPOUNDS; MICROWAVE EQUIPMENT; NIOBIUM ALLOYS; TIN ALLOYS; TYPE-II SUPERCONDUCTORS
- Descriptors DEC
- ALLOYS; ELECTRON SPECTROSCOPY; ELECTRONIC EQUIPMENT; FREQUENCY RANGE; GHZ RANGE; SPECTROSCOPY; SUPERCONDUCTORS; TRANSITION ELEMENT ALLOYS
Optional Information
- Notes
- 4 figs.; 4 refs. With abstract.