Progress Towards a Higher Sensitivity 13C-Optimized 1.5 mm HTS NMR Probe
| Autor: | William W. Brey, Arthur S. Edison, Jeremy N. Thomas, Vijaykumar Ramaswamy, Taylor L. Johnston, Ilya M. Litvak |
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| Rok vydání: | 2021 |
| Předmět: |
High-temperature superconductivity
Materials science business.industry High temperature superconducting Yttrium barium copper oxide Condensed Matter Physics 01 natural sciences Article Electronic Optical and Magnetic Materials law.invention chemistry.chemical_compound Resonator Quality (physics) chemistry Electromagnetic coil law Q factor 0103 physical sciences Optoelectronics Sensitivity (control systems) Electrical and Electronic Engineering 010306 general physics business |
| Zdroj: | IEEE Trans Appl Supercond |
| ISSN: | 2378-7074 1051-8223 |
| Popis: | Nuclear magnetic resonance (NMR) probes using thin-film high temperature superconducting (HTS) resonators offer high sensitivity and are particularly suitable for small-sample applications. We are developing an improved 1.5 mm HTS NMR probe designed for operation at 14.1 T and optimized for (13)C detection. The total sample volume is about 35 μL and the active sample volume is 20 μL. The probe employs HTS resonators for (13)C and (1)H transmission and detection and the (2)H lock. We examine the interactions of multiple superconducting resonators and normal metal tuning loops on coil resonance frequency and probe sensitivity. We test a recently introduced (13)C resonator design, engineered to significantly increase (13)C detection sensitivity over previous all-HTS probes. At zero field, we observe a (13)C quality factor of 6000 which is several times higher than previous resonators. In this work the coil design considerations and probe build-out procedure are discussed. |
| Databáze: | OpenAIRE |
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