期刊
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
卷 22, 期 3, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TASC.2011.2178976
关键词
Compact HTS insert magnet; GHz-class NMR; LTS/HTS NMR; no-insulation winding; self-protecting
资金
- NIBIB NIH HHS [R01 EB017097] Funding Source: Medline
- NIGMS NIH HHS [R01 GM137138] Funding Source: Medline
A no-insulation (NI) technique has been applied to wind and test a NI HTS (YBCO) double-pancake coil at 4.2 K. Having little detrimental effect on field-current relationship, the absence of turn-to-turn insulation enabled the test coil to survive a quench at a coil current density of 1.58 kA/mm(2). The NIHTS coil is compact and self-protecting, two features suitable for large high-field magnets. To investigate beneficial impacts of the NI technique on >1 GHz LTS/HTS NMR magnets, we have designed six new NI HTS inserts for our ongoing 1.3 GHz LTS/HTS NMR magnet, which require less costly LTS background magnets than the original insulated HTS insert. A net result will be a significant reduction in the overall cost of an LTS/HTS NMR magnet, at 1.3 GHz and above.
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