Nuclear Spin-Noise Spectra of Hyperpolarized Systems†
We thank Dr. Dimitrios Sakellariou for technical comments on the preparation of the microcoils. Financial support from the French Ministry of Research (ANR program “Physico-Chimie du Vivant 2006” and program “Blanc 2007”) is greatly acknowledged.
Graphical Abstract
Spin-noise appeal: Detection of NMR spin-noise is very appealing when dilute hyperpolarized species are considered. Continuous monitoring of the noise absorption at the Larmor frequency enables determination of T1 and T2*, independently of the static magnetic field. An inductively coupled microcoil located inside the NMR tube (see picture) allows acquisition of 129Xe spin-noise spectra without radio-frequency excitation.
Abstract
Spin-noise appeal: Detection of NMR spin-noise is very appealing when dilute hyperpolarized species are considered. Continuous monitoring of the noise absorption at the Larmor frequency enables determination of T1 and T2*, independently of the static magnetic field. An inductively coupled microcoil located inside the NMR tube (see picture) allows acquisition of 129Xe spin-noise spectra without radio-frequency excitation.
