Stereoscopic X-ray device

Details Stereoscopic X-ray device Stereoscopic X-ray device

1979-10-02

1981-09-01

Smith, Alfred E.

Radiant energy

With charged particle beam deflection or focussing

With target means

250404, H05G 100, H05G 130

Patent

active

042874203

ABSTRACT:
A stereoscopic X-ray device used for stereoscopic radiography generates X-rays from a pair of X-ray focal spots. The X-ray device is provided with an evacuated envelope, an X-ray target within the evacuated envelope, and a cathode structure having at least two pairs of filaments. The first pair of filaments form relatively large size X-ray focal spots on the target. The second pair of the filaments form relatively small size X-ray focal spots on the target and are situated between the first pair of filaments on the cathode structure. As a result of these two pairs of focal spots on the X-ray target, a relatively small X-ray device can be used to provide magnification of stereoscopic images of high stereo quality.

REFERENCES:
patent: 2110604 (1938-03-01), Langhans
patent: 2942126 (1960-06-01), Silbermann
patent: 3250916 (1966-05-01), Rogers
patent: 3452203 (1969-06-01), Shiga et al.
patent: 3857039 (1974-12-01), Franke et al.
patent: 3962583 (1976-06-01), Holland et al.
Dol et al., "Application of Longitudinal Magnification Effect to Magnification Stereoscopic Angiography: A New Method of Cerebral Angiography", Neuroradiology, Aug. 1977, p. 395.

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