Author: bugman Date: Wed Nov 20 15:54:23 2013 New Revision: 21544 URL: http://svn.gna.org/viewcvs/relax?rev=21544&view=rev Log: Fix for the LM63 dispersion model equation in the manual. Modified: branches/relax_disp/docs/latex/dispersion.tex Modified: branches/relax_disp/docs/latex/dispersion.tex URL: http://svn.gna.org/viewcvs/relax/branches/relax_disp/docs/latex/dispersion.tex?rev=21544&r1=21543&r2=21544&view=diff ============================================================================== --- branches/relax_disp/docs/latex/dispersion.tex (original) +++ branches/relax_disp/docs/latex/dispersion.tex Wed Nov 20 15:54:23 2013 @@ -233,20 +233,25 @@ This is the original model for 2-site fast exchange for CPMG-type experiments. It is selected by setting the model to `LM63', here named after \citet{LuzMeiboom63}. -The original $n$-site Equation~(7) from their paper can be written as: -\begin{equation} - \Rex = \left[ 1 - 2\tex\taucpmg \cdot \tanh \left( 2\tex\taucpmg \right)^{-1} \right] \cdot \tex \cdot \sum_{i=2}^n p_\textrm{i}\dw_{i} , -\end{equation} - -or rearranged as: +The original $n$-site Equation~(7) from their paper can be written as +\begin{equation} + \Rex = \left[ 1 - 2\tex g \cdot \tanh \left( 2\tex g \right)^{-1} \right] \cdot \tex \cdot \sum_{i=2}^n p_\textrm{i}\dw_{i}, +\end{equation} + +where $g$ is the pulse repetition rate defined as +\begin{equation} + g = 2\nucpmg. +\end{equation} + +It can be rearranged as \begin{equation} \label{eq: Luz-Meiboom} - \Rex = \sum_{i=2}^n \frac{\Phiexi}{\textrm{k}_\textrm{i}} \cdot \left( 1 - \frac{4\nucpmg}{\textrm{k}_\textrm{i}} \cdot \tanh \left( \frac{\textrm{k}_\textrm{i}}{4\nucpmg} \right) \right) , -\end{equation} - - -The equation for the 2-site exchange process can be expressed as: -\begin{equation} - \Rtwoeff = \Rtwozero + \frac{\Phiex}{\kex} \cdot \left( 1 - \frac{4\nucpmg}{\kex} \cdot \tanh \left( \frac{\kex}{4\nucpmg} \right) \right) . + \Rex = \sum_{i=2}^n \frac{\Phiexi}{\textrm{k}_\textrm{i}} \cdot \left( 1 - \frac{4\nucpmg}{\textrm{k}_\textrm{i}} \cdot \tanh \left( \frac{\textrm{k}_\textrm{i}}{4\nucpmg} \right) \right). +\end{equation} + + +The equation for the 2-site exchange process can be expressed as +\begin{equation} + \Rtwoeff = \Rtwozero + \frac{\Phiex}{\kex} \cdot \left( 1 - \frac{4\nucpmg}{\kex} \cdot \tanh \left( \frac{\kex}{4\nucpmg} \right) \right). \end{equation} The reference for this equation is: