Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1975-12-10
1977-03-01
Smith, Alfred E.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250369, 250445T, G01N 2308
Patent
active
040103714
ABSTRACT:
In an X-ray apparatus for examining a body a source of a fan of radiation and detectors of the radiation along beams in the fan are traversed in a plane to provide data for a plurality of sets of parallel beams in the plane. An orbital motion is provided to give data for further sets at different inclinations in the plane. The data can be processed by arrangements using such "parallel" sets. The orbital motion is continuous during the traverse but the extent of angular change in one lateral scan is kept small so that lack of parallelism in the "parallel" sets does not give excessive errors.
REFERENCES:
patent: 3946234 (1976-03-01), Hounsfield
EMI Limited
Grigsby T. N.
Smith Alfred E.
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