"The relaxation rate of the net nuclear spin polarization in the direction of the magnetic field of a spectrometer back to its equilibrium value.NCINanoparticle Characterization Laboratory" . "Longitudinal Relaxation Rate"^^ . "C2697937"^^ . "R1SYNCI" . . . "Longitudinal_Relaxation_Rate"^^ . "Lattice Relaxation RateSYNCI" . "1/T1SYNCI" . "C80361"^^ . "Quantitative Concept"^^ . "Longitudinal Relaxation Rate"^^ . "Longitudinal Relaxation RatePTNCI" .