Patent ID: 6094472
Filing Date: 2000-07-25
Classification: G01N,G01V

Abstract:
X-ray imaging apparatus for detecting an object carried by or on a body moving relative to the apparatus, said apparatus having an entrance and an exit, said apparatus comprising:a passageway extending at least from said entrance to said exit;at least one X-ray source having means for producing a pencil beam of X-rays directed toward said body in said passageway, said pencil beam intersecting said body at a region of intersection corresponding to a pixel having a pixel value;a scanning means disposed adjacent said at least one X-ray source for moving the region of intersection of said pencil beam and said body over a surface of said body;a tracking means for causing the scanning means to substantially track said body as it moves with respect to said apparatus from said entrance to said exit;a detector assembly for detecting an intensity of X-rays scattered from said body as a result of being scanned by said first scanning means and for generating a signal representative of the intensity of the scattered X-rays, said detector assembly comprising a plurality of detectors; anddisplay means for presenting characteristics of the detector signal to an operator.