Relaxation of homonuclear system with RF irradiation
射频场照射下同核体系的弛豫

According to WBR theory and the character of homonuclear system,the relaxation equations of homonuclear system with RF irradiation are deduced by means of the three-dimensional Wigner rotation matrix.The computation formulas of transverse and longitudinal relaxation with RF radiation are proposed,and the effects of RF irradiation on relaxation are investigated.Finally,the following conclusions are gained.(1)The RF irradiation has effect on the relaxation course in a homonuclear system to some extent. (2)The longitudinal relaxation time T 1 with RF irradiatoin is shorter than that without RF irradiation,while the transverse relaxation time T 2 with RF irradiation is longer than that without RF irradiation.(3)With the growth of RF irradiation,T 1 is reduced,while T 2 is increased.