Radius of gyration calculator
This Javascript calculates the Radius of Gyration of 3-dimensional concentric shell models (ellipsoid, cube or cylinder). Enter the number of shells, the lengths of the respective semi-axis Rx(i), Ry(i) and Rz(i) (z is in the axis of rotation) and the corresponding electron-density c(i) (between R(i) and R(i-1)). The values of the radius of gyration Rg and of the zero-angle intensity I(0), respectively, will be calculated. Units are arbitrary and in metric dimensions (in small-angle scattering (SAS) usually in Å or nm).