Nuclear quadrupole spectra in solids

Numerical values for the energy levels, Zeeman splitting parameters, and intensity parameters of the pure quadrupole spectrum are given for ten values of the asymmetry parameter for spins 52, 72, and 92. The intensity parameters for the m→-m transition in a magnetic field for large asymmetric quadrupole interaction are given. They show that the corresponding lines should be observable. A method of increasing the accuracy of perturbation calculations is presented for the Zeeman splitting case and the strong magnetic field case.