Scattering of a nonuniform wave by a thin strip

The scattering of a nonuniform incident wave from a thin conducting cylindrical wire is analyzed. In addition to the usual destructive interference in the diffraction pattern, it is found that there is an additional position of destructive interference that lies close to the central beam axis, within the central diffraction peak. The location of this new point is in general agreement with results given by Ganci. The diffraction calculation by Ganci is extended to include larger values of the ratio of the strip width to beam diameter. The extended theory is found to be in excellent agreement with experiment.