hi all, i have done scattering function analysis using g_rdf command for polymer-solvent system. i got the plot of scattering vector q(1/nm) vs intensity .now i want to convert the scattering vector (q) value in to distance i.e. 'd' the fundamental polymer books have the relation for light scattering, that relation is lamda= 2*d*sin(theta). this theta value can be obtained from q.can anybody tell, what type of scattering gromacs use to calculate q . and what is the relation to convert scattering vector q to distance d for that particular scattering type which gromacs using
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