Near field or far field imaging apparatus with improved resoluti

Details Near field or far field imaging apparatus with improved resoluti Near field or far field imaging apparatus with improved resoluti

1979-04-20

1981-04-14

Smith, Alfred E.

Radiant energy

Radiation controlling means

250363S, G21K 100, G01T 120

Patent

active

042622077

ABSTRACT:
In imaging apparatus comprising a slit collimator, means for imparting to the collimator a basic movement through a succession of different positions relative to a source of radiation, detector means for providing measurements of the radiation passing through the collimator in each of the positions, and means for processing data from the succession of measurements to gain information about the source, that improvement comprising means for superimposing upon the basic movement of the collimator a cyclic lateral movement of the collimator and the detector means transverse both to the direction of radiation transmission through the collimator and to the walls of the collimator defining the slits, and means for making a succession of such measurements during each cycle of the lateral movement.

REFERENCES:
patent: 3866047 (1975-02-01), Hounsfield
patent: 3934142 (1976-01-01), Hounsfield
patent: 3946234 (1976-03-01), Hounsfield
patent: 4160167 (1979-07-01), Weiss et al.

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