γγ-angular correlations perturbed by stochastic fluctuating fields

摘要: On the base of stochastic model M. Blume for time-dependent hyperfine interactions perturbation factors angular correlation function are evaluated. The results numerical calculations some special configurations fluctuating field gradients as well magnetic fields presented. In medium range where fluctuation rates comparable with nuclear precession frequencies, interesting features worked out spinrotation spectra. For limiting case very fast fluctuations it is proved that well-known exponential decay anisotropy predicted by theory Abragam and Pound appears.