A laser scanner for the densitometric analysis of radiographs | Zendy

Revesz George | Zendy; Kundel Harold L. | Zendy

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A laser scanner for the densitometric analysis of radiographs

Author(s) -

Revesz George,

Kundel Harold L.

Publication year - 1979

Publication title -

medical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.473

H-Index - 180

eISSN - 2473-4209

pISSN - 0094-2405

DOI - 10.1118/1.594565

Subject(s) - scanner , raster graphics , optics , raster scan , radiography , detector , beam (structure) , laser , position (finance) , minicomputer , lens (geology) , materials science , nuclear medicine , physics , computer science , artificial intelligence , medicine , radiology , finance , economics , operating system

An instrument is described which can scan radiographs and collect densitometric readings for subsequent computer analysis. A laser beam is focused onto the film. Raster scan of the beam is provided by two orthogonal mirror galvanometers. The light, attenuated by the radiograph, is gathered by a lens in such a way that it is directed onto a small detector regardless of the scan position. Beam position signals and density readings are stored and analyzed in a minicomputer.

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