The Carver and Richards 1972 2-site relaxation dispersion model for
SQ CPMG-type data for most time scales whereby the simplification R
2A0 = R
2B0 is assumed. This model is labelled as
CR72 in
relax.
Equation
Please see the summary of the model parameters here.
[math]
R_{2,\textrm{eff}} = \frac{R_2^A+R_2^B+k_{\textrm{EX}}}{2} - \nu_{\textrm{cpmg}} \cosh^{-1} (D_+\cosh(\eta_+) - D_-\cos(\eta_-)) \\
\phantom{R_{2,\textrm{eff}}} = R_2 + \frac{k_{\textrm{EX}}}{2} - \nu_{\textrm{cpmg}} \cosh^{-1} (D_+\cosh(\eta_+) - D_-\cos(\eta_-))
[/math]
Which have the following definitions
<math>
\zeta = 2 \Delta \omega \, (R_2^A - R_2^B - p_A k_{\textrm{EX}} + p_B k_{\textrm{EX}}) \\
\phantom{\zeta} = - 2 \Delta ..→