| 摘要 |
The invention relates to an NMR spectrometer (131), comprising an NMR magnetic coil (91), which comprises, at least in one section (121), windings having a conductor composed of a superconductor structure (1), comprising a plurality of strip pieces (2, 2a, 7a-7e, 8a-8d, 15) of strip-shaped superconductor, wherein each strip piece (2, 2a, 7a-7e, 8a-8d, 15) has a flexible substrate (3) and a superconducting layer (4) deposited on the flexible substrate, wherein the strip pieces (2, 2a, 7a-7e, 8a-8d, 15) each have a length of 20 m or more, and wherein the strip pieces (2, 2a, 7a-7e, 8a-8d, 15) are connected to each other, wherein at least one of the strip pieces (2, 2a, 7a-7e, 8a-8d, 15) is designed as a chained strip piece (2, 2a), and wherein each chained strip piece (2, 2a) is connected to at least two further strip pieces (7a-7e) in such a way that the further strip pieces (7a-7e) together overlap with at least 95% of the total length (L) of the chained strip piece (2, 2a). The invention provides an improved NMR spectrometer, in particular wherein a magnetic coil of the spectrometer can produce particularly high magnetic field strengths in a sample volume and has low drift. |
