Figure 8.

Dependency of rotating frame relaxation rates on ${\omega }_1^{\max }∕\left(2\pi \right)$ during HS1 pulse (a,b) and HS4 pulse (c,d), in the presence of an anisochronous exchange. For both pulses, R = 80 and T_p = 8 ms, corresponding to BW = 10 kHz. The R_1p,ex and R_2p,ex were calculated according to Eqs. [11-13], respectively, with parameters: ω₀/(2π) = 169 MHz, δw = 0.85 ppm (= 170 Hz at 4 T) and P_m = P_q = 0.5. The range of exchange correlation times (τ_ex) was chosen in order to satisfy the fast exchange limit.