Radiant energy – Inspection of solids or liquids by charged particles – Analyte supports
Patent
1977-12-30
1979-04-10
Smith, Alfred E.
Radiant energy
Inspection of solids or liquids by charged particles
Analyte supports
A61B 602
Patent
active
041490827
ABSTRACT:
In one mode, laminographic images are produced by sequentially pulsing a series of X-ray tubes, and by step-wise shifting of the image field of an image intensifier in an opposite sense so that each image of the desired layer is superimposed at the image intensifier output. The amplitude of the required magnetic deflection of the image intensifier is a function of the depth of the layer, and may be calibrated to represent the length dimension of a selected layer region. In another mode, a transverse sectional image is scanned by progressively increasing the magnetic deflection after each cycling of the X-ray sources, so as to scan at successive depths. With a video camera scanning the image intensifier output, one video line of each field may be stored for each depth, and then read out to display the cross sectional image. By storing different lines for respective different depths, oblique sections may be recorded. By sequentially pulsing right and left rows of X-ray sources in successive field intervals of the video camera, stereoscopic images may be generated, the right and left fields being suitably offset and visually differentiated (e.g. by color) for stereoscopic display.
REFERENCES:
patent: 2491224 (1949-12-01), Stava
patent: 3665184 (1972-05-01), Schagen
Klotz et al., "X-Ray 3-D Coded Aperture Imaging: Displaying the Heart," Applied Optics, Aug. 1976, vol. 15, No. 8, pp. 1913-1918.
Haendle Joerg
Sklebitz Hartmut
Grigsby T. N.
Siemens Aktiengesellschaft
Smith Alfred E.
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