Fig. 5.

Recovery of the water magnetization in an inversion recovery experiment (180°–τ–90°–acq) used to measure the radiation damping time constant. A sample of sucrose (2 mM) either in 90%H₂O/10%D₂O (continuous line) or 50%H₂O/50%D₂O (dotted line) at proton frequency of 600 MHz. Panel (a) shows the actual recovery of magnetization to equilibrium due to radiation damping, while panel (b) shows the linearization of the data according to Eq. (23). Linear regression was used to determine R_RD = 130.0 ± 0.8 s⁻¹ and t₀ = 22.4 ± 0.2 ms for 90%H₂O (solid line), whereas R_RD = 75.8 ± 0.6 s⁻¹ and t₀ = 41.2 ± 0.3 ms for 50%H₂O (dashed line). Reproduced with permission [72].