Radiant energy – With charged particle beam deflection or focussing – With target means
Patent
1980-02-04
1982-03-23
Church, Craig E.
Radiant energy
With charged particle beam deflection or focussing
With target means
250402, G03B 4116
Patent
active
043214711
ABSTRACT:
A source of X-rays encompassing a rotating target is provided with a detector of X-rays located outside a port of a housing of the source and positioned at or near a tangent line to the radiating surface for observing variations in the radiation intensity due to rotation of the target, the variations being pronounced due to the heel effect of the radiation pattern. In one embodiment, the X-ray detector employs a scintillation material and is coupled by a light pipe to a photodetector which is removed from the path of the radiation and detects scintillations of the X-ray detector. Alternatively, the photodetector and light pipe may be deleted by the use of a detector of germanium, silicon or an ion chamber which converts X-ray photons directly to an electric current.
REFERENCES:
patent: 3205360 (1965-09-01), Graves
patent: 3917949 (1975-11-01), Winkler
patent: 3940625 (1976-02-01), Hounsfield
patent: 3963930 (1976-06-01), Fiocca
Holland William P.
Pellegrino Anthony
Church Craig E.
Meaney John T.
Pannone Joseph D.
Sharkansky Richard M.
The Machlett Laboratories, Inc.
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