Gamma-ray camera including novel converter matrix useful therein

Details Gamma-ray camera including novel converter matrix useful therein Gamma-ray camera including novel converter matrix useful therein

1974-09-05

1976-07-27

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250369, G01T 120

Patent

active

039719421

ABSTRACT:
A gamma-ray camera is described including a collimator receiving and collimating the gamma rays, a converter matrix converting the gamma rays to electrons, an electron-image multiplier receiving the electrons and producing a multiplied electron output, and means for reading out the output of the electron-image multiplier.
A converter matrix is described for converting gamma-rays to electrons comprising a metal plate emitting electrons upon being impinged by gamma-photons, the metal plate having a face formed with a plurality of spaced parallel surfaces which extend substantially parallel to the direction of the gamma-rays. Also described is a converter matrix of scintillation crystals, one face of each crystal including a photo-sensitive coating, the opposite face of each crystal being clear, the remaining faces of each crystal being coated with a light-reflecting coating.

REFERENCES:
patent: 3235737 (1966-02-01), Niklas
patent: 3509341 (1970-04-01), Hindel et al.
patent: 3626189 (1971-12-01), Berg
patent: 3683185 (1972-08-01), Muehllehner
patent: 3703638 (1972-11-01), Allemand et al.
patent: 3838273 (1974-09-01), Cusano
patent: 3857036 (1974-12-01), Novak

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