Nuclear Spin-system Dynamics affected by Double Inhomogeneity under Multipulse Excitation in Statistical Tensor Formalism

Abstract

New coherent transient effects formed due to double inhomogeneity, i.e. inhomogeneity in the main precession frequency (Larmor inhomogeneous broadening) and of the rf amplitude expressed in frequency units (Rabi inhomogeneous broadening), in˚uencing the nuclear spin- system dynamics during rf pulse excitation, have been predicted and investigated by use of the method of concatenation of perturbation factors (CPF) in statistical tensors (ST) formalism. Multiple pulse excitation under double inhomogeneity is examined when the repetition period of a pulse sequence is shorter than T₁.