Data acquisition in tomography

Details Data acquisition in tomography Data acquisition in tomography

1975-05-15

1976-12-07

Church, Craig E.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250368, 250445T, G03B 4116

Patent

active

039964671

ABSTRACT:
In an apparatus for examining a body with penetrating radiation a source and detector arrangement scan about the body to irradiate the body along a plurality of beam paths lying in a plane. Output signals are provided from weighted components where each component relates to the absorption of the radiation along one of a set of adjacent and substantially parallel beam paths. The weighting is according to a function chosen so that the output signals are restricted to a chosen spatial frequency band to reduce errors in a representation, if the distribution of absorption of the radiation through the body, constructed from the output signals. The weighting may be provided by optical means between scintillator crystals and photomultipliers forming the detector arrangement.

REFERENCES:
patent: 3778614 (1973-12-01), Hounsfield

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