Three-dimensional and tomographic imaging device for x-ray and g

Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor

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250369, G01T 116

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045216886

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.

REFERENCES:
patent: 3452657 (1969-07-01), Cox
patent: 3503315 (1970-03-01), de Montebello
patent: 3535993 (1970-10-01), Jones
patent: 3613539 (1971-10-01), Dudley
patent: 4142101 (1979-02-01), Yin
patent: 4345153 (1982-08-01), Yin
patent: 4404469 (1983-09-01), Yin
patent: 4424446 (1984-01-01), Inbar et al.
Three-Dimensional Imaging of X-Ray and Gamma-Ray Objects in Real Time, Yin et al., Applied Optics, vol. 19, No. 17, Sep. 1, 1980.
On the Multiplex Advantage of Coded Source/Aperture Photon Imaging, Wagner et al., Society of Photo-optical Instrumentation Engineers, (SPIE), vol. 314, (Conference on Digital Radiography), p. 72, 1981.
Wide-angle Integral Photography-The Integram System, R. L. de Montebello, SPIE, vol. 120, Three Dimensional Imaging, (1977).

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