Patent Number: 6,167,113

Title: X-ray imaging system for determining area density of low density samples

Abstract: An apparatus and method are disclosed for measuring the area density of a low density material sample. The system includes an x-ray emitter which emits x-rays in the range of 3 kilovolts to 20 kilovolts and the x-rays pass through the sample. An imaging device converts the x-rays which pass through the sample to visible light to produce a visible image corresponding to the sample and in which the visible image has an intensity which varies as a function of the area density across the sample. A camera produces an output signal representative of the intensity of the visible image across the sample while a computer processor processes the signal from the camera after digitization to produce an analysis of the area density of the sample.

Inventors: Armentrout; Charles J. (Ann Arbor, MI), Basinger; Thomas (Ypsilanti, MI), Beyer; James H. (Ann Arbor, MI), Colesa; Brian D. (Chelsea, MI), Olsztyn; Paul (Ann Arbor, MI), Smith; Karen G. (Brighton, MI), Strandberg; Carl (Troy, MI), Sullivan; David (Brighton, MI)

Assignee: Pilot Industries, Inc.

International Classification: G01B 15/02 (20060101); G01N 23/223 (20060101); G01N 23/22 (20060101); G01B 015/02 ()

Expiration Date: 12/26/2013