Change in Field Intensification Factor β of an Electrode Projection (Whisker) at Short Gap Lengths

The field intensification factor, β, was found theoretically to be a function of gap length, projection height, and projection tip radius. The electrode projection was approximated by a grounded plane and separate grounded sphere, the opposing electrode by a charged plane. The results may be used to find the height and tip radius of a projection in a small gap by measuring β as a function of gap length.