G - Physics – 01 – T
Patent
G - Physics
01
T
358/11.1
G01T 1/16 (2006.01) G01T 1/29 (2006.01) H05G 1/00 (2006.01) H05G 1/60 (2006.01)
Patent
CA 1211232
Abstract An instrument for obtaining quantitative, three-dimensional and tomographic information relating to x-ray and gamma-ray emitting objects and for the orthoscopic viewing of such objects includes a multiple-pinhole aperture plate (22) held spaced from an x-ray or gamma-ray to visible-light converter (24) which is coupled to a visible-light image intensifier (26). The spacing between the aperture plate and the converter is chosen such that the mini-images of an emitting object formed by the pinholes do not substantially overlap as they impinge on the converter. The output of the image intensifier is digitized by a digitizing camera (36) in terms of position and intensity and fed into a digital computer (40,42). The computer may output quantitative information relating to the emitting object directly, such as that relating to tomograms, or provide information in analogue form when coupled with a suitable viewing device (52,54), to give an orthoscopic, three-dimensional image of the object.
445681
Fetherstonhaugh & Co.
National Aeronautics And Space Administration
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