Variable code gamma ray imaging system

Details Variable code gamma ray imaging system Variable code gamma ray imaging system

1977-05-05

1979-08-21

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250445T, G01T 120, G01N 2134

Patent

active

041654625

ABSTRACT:
A gamma-ray source distribution in the body is imaged onto a detector using an array of apertures. The transmission of each aperture is modulated using a code such that the individual views of the source through each aperture can be decoded and separated. The codes are chosen to maximize the signal to noise ratio for each source distribution. These codes determine the photon collection efficiency of the aperture array. Planar arrays are used for volumetric reconstructions and circular arrays for cross-sectional reconstructions.

REFERENCES:
patent: 3748470 (1973-07-01), Barrett
patent: 3840747 (1974-10-01), Macovski

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