On Isoscattering Points of the Spheroidal Core-Shell Nanoparticles

The development of the isoscattering point approach for the contrast variation technique in small-angle scattering from systems of anisotropic particles is presented. It is shown that the some size, namely minor semi-axis of elongated spheroid, can be reliably obtained. In comparison with the case of spherical particles, there is a certain small overestimation depending on the shell thickness. The indications were found for the fact that, in the general case, the isoscattering point is sensitive to the smallest overall size of the nanoparticle.