Fig. 4.

(a) Solid curve, f⁴ weighted by squared Gaussian form factor; dotted curve, f⁴ weighted by squared hard-sphere form factor; dashed curve, expected backscattered intensity for scattering from glass spheres in gelatin, using the exact method of calculation derived by Faran²⁴ (see text for parameters). All results are plotted as a function of the product of wave number k and particle radius a. (b) Solid curves, same as (a) with particle diameter as a parameter; dashed curves, same as (a) with particle diameter as a parameter.