NMR SPECTROMETER COMPRISING A SUPERCONDUCTING MAGNETIC COIL HAVING WINDINGS COMPOSED OF A SUPERCONDUCTOR STRUCTURE HAVING STRIP PIECES CHAINED TOGETHER

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.