Nmr-mas probe with inductively coupled sample coil and nmr-mas apparatus

Abstract

A nuclear magnetic resonance (NMR) probe with a 1H channel comprises a primary circuit with a coupling coil (L2) galvanically connected to an impedance port for feeding RF pulses with a frequency corresponding to 1H nuclei into the 1H channel, and a secondary circuit with a sample coil (L1) for applying and receiving RF pulses to/from a sample. At least one tuning element is galvanically connected to the sample coil (L1) for tuning a first resonance circuit of the 1H channel, and the coupling coil (L2) is inductively coupled to the sample coil (L1) to couple the RF pulses into the sample coil (L1). The coupling coil (L2) is arranged concentrically and symmetrically with the sample coil (L1). The probe provides more efficient inductive coupling to apply a strong RF magnetic field to the sample without degrading the sensitivity of multi-tuned single coil NMR-probes, in particular in MAS applications.

Dependencies are inferred from the claim text.