NMR quadrupolar effects in crystals

Investigated are integral intensities of NMR lines in a nonequidistant spectrum stipulated by a quadrupolar interaction of nuclei with a crystalline field. It is shown that when an electromagnetic energy is stationary absorbed by the spin system (in a case of a magnetic relaxation mechanism) then an intensity of lines depends on the time parameter Tsub(n) connected with a couple of levels Esub(m) and Esub(m-1) between which a transition is induced. Determined is a ratio of integral intensities of symmetrical satellites in the first order of the disturbance theory for crystals with oxial symmetry. Theoretical results agree well with experimental ones