Superconducting magnets are cooled by liquid helium and usually insulated by another layer of liquid nitrogen. Incidentally, the MHz rating of NMR magnets refers to the resonance frequency of protons ...

For the first several decades, researchers relied on one-dimensional NMR spectra of NMR active nuclei. These spectra have one frequency axis, and analysis relies upon the relative frequency shifts ...

Nuclear magnetic resonance (NMR) spectroscopy is a technique that detects the chemical environment of atomic nuclei by the absorption of radio-frequency electromagnetic radiation when in the ...

The current GeoSpec range functions at an NMR frequency of 2 MHz, to imitate the downhole tools and also to reduce measurement artifacts caused by the paramagnetic material usually found in sandstones ...

The term nutation frequency pertains to ω 1 ... and the study constraints demanded by the pulse program. Table 1. Solid-state NMR Experiments which make use of the method described in this ...

The sample is polarized in-situ in a low-temperature NMR MAS probe. 1 H NMR Frequency WB NMR Magnet Gyrotron Frequency Gyrotron Magnet 400 MHz 400/89 Ascend DNP 263 GHz 4.8 T cryogen-free 600 MHz ...