In:
Journal of Physics: Conference Series, IOP Publishing, Vol. 1559, No. 1 ( 2020-06-01), p. 012022-
Kurzfassung:
Nuclear magnetic resonance (NMR) probes using thin-film HTS coils offer high sensitivity and are particularly suitable for small-sample applications. Typically, HTS probes are optimized for the detection of multiple nuclei and require several coils to be located within a small volume near the sample. Coupling between the coils shifts coil resonances and complicates coil trimming when tuning HTS probes. We have modeled the magnetic coupling between the coils of a 1.5-mm all-HTS NMR probe with 13 C, 1 H, and 2 H channels. By measuring the magnetic coupling coefficients between individual coils, we solve the general coupling matrix given by KVL for six coupled resonators. Our results indicate that required trims can be accurately predicted by applying single coil trimming simulations to this magnetic coupling model. Use of the magnetic coupling model significantly improves the efficiency of tuning HTS probes.
Materialart:
Online-Ressource
ISSN:
1742-6588
,
1742-6596
DOI:
10.1088/1742-6596/1559/1/012022
Sprache:
Unbekannt
Verlag:
IOP Publishing
Publikationsdatum:
2020
ZDB Id:
2166409-2
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