Patent ID: 6928140

Claim:
A method for inspecting a golf ball comprising the steps of: providing a golf ball comprising a core having a first diameter and at least one cover layer having a first thickness; securing said golf ball in a measuring holder; providing an x-ray source having a spot size and an intensity optimized for detecting the edge of the golf ball core or cover layer, the first diameter, or the first thickness, the x-ray intensity being between about 25 keV and about 75 keV; reducing the x-ray spot size to less than about 0.01 inches by 0.01 in resulting band of unsharpness is no greater than about 0.010 inches; providing at least one marker placed within the measuring holder; abutting the golf ball against said at least one marker; rotating the golf ball about at least one axis; capturing an x-ray image of the golf ball about at least one axis and an image of the marker; and determining the eccentricity of the golf ball.