Development of an NMR spectrometer operated beyond 1 GHz. 24 T superconducting magnet using a Bi-2223 innermost coil
Description
We have successfully upgraded the a 920-MHz (21.6 T) nuclear magnetic resonance (NMR) superconducting magnet to 1020 MHz (24.0 T). The newly developed 3.6-T (Bi,Pb)2Sr2Ca2Cu3O10 (Bi-2223) innermost coil, which was made of Cu-alloy laminated Bi-2223 tapes, was installed instead of a Nb3Sn innermost coil. The upgrading project was a technical challenge for a Bi-2223 high-Tc superconductor, not only from a high-field application point of view, but also from the perspective of homogeneous and stable field generation. In this review, the development of the a Bi-2223 innermost coil and the outline for upgrading are introduced. Serious damage caused by the Great East Japan Earthquake is also introduced. Some major accomplishments are shown. (author)
Availability note (English)
Available from http://dx.doi.org/10.2221/jcsj.51.329Additional details
Identifiers
- DOI
- 10.2221/jcsj.51.329;
Publishing Information
- Journal Title
- Teion Kogaku
- Journal Volume
- 51
- Journal Issue
- 7
- Journal Page Range
- p. 329-334
- ISSN
- 0389-2441
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 48051249
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BISMUTH OXIDES; CALCIUM OXIDES; COPPER OXIDES; ELECTRIC CURRENTS; HIGH-TC SUPERCONDUCTORS; MAGNETIC FIELDS; NMR SPECTROMETERS; STRONTIUM OXIDES; SUPERCONDUCTING COILS; SUPERCONDUCTING MAGNETS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CURRENTS; ELECTRIC COILS; ELECTRICAL EQUIPMENT; ELECTROMAGNETS; EQUIPMENT; MAGNETS; MEASURING INSTRUMENTS; OXIDES; OXYGEN COMPOUNDS; SPECTROMETERS; STRONTIUM COMPOUNDS; SUPERCONDUCTING DEVICES; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS
Optional Information
- Notes
- 33 refs., 6 figs., 2 tabs.