Real-time 3-D x-ray and gamma-ray viewer

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

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250363S, 250368, 378 2, G01T 120

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active

044044690

ABSTRACT:
A multi-pinhole aperture lead screen (22) forms an equal plurality of invisible mini-images having dissimilar perspectives of an x-ray and gamma-ray emitting object (ABC) onto a rear-earth phosphor layer (24) which, in turn, provides visible light mini-images directly into a visbile light image intensifier (26). A viewing screen (34/48) having an equal plurality of dissimilar perspective apertures distributed across its face in a geometric pattern identical to the lead screen, provides a viewer with a real, pseudoscopic image (A'B'C') of the object with full horizontal and vertical parallax. Alternatively, a third screen (34) identical to the viewing screen (48) and spaced apart from a second visible light image intensifier (42), may be positioned between the first image intensifier (26) and the viewing screen (48), thereby providing the viewer with a virtual, orthoscopic image (A"B"C") of the object (ABC) with full horizontal and vertical parallax.

REFERENCES:
patent: 4142101 (1979-02-01), Yin
patent: 4360797 (1982-11-01), Fenimore et al.
Chang et al., "A Method of Tomographic Imaging Using a Multiple Pinhole-Coded Aperture", J. Nucl. Med. vol. 15, No. 11 (Nov. 1974) p. 1063.
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.
Wide-angle Integral Photography-The Integram System, R. L. de Montebello, SPIE vol. 120 Three Dimensional Imaging (1977).

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