Title: Gamma-ray camera including novel converter matrix useful therein

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.

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Inventors: Seidman, Ady (Tel Aviv, IL, US)
Avrahami, Zohar (Ramat Gan, IL, US)
Sheinfux, Benjamin (Tel Aviv, IL, US)
Grinberg, Jan (Holon, IL, US)
Shimoni, Uri (Kiron, IL, US)

Application Number: 503284
Filing Date: 1974-09-05
Publication_date: 1976-07-27
Assignee: Ramot University Authority for Applied Research and Industrial (Tel Aviv, IL)
Primary Class(es): 250/363.02 250/369
Other Classes:
US Patent Ref:

3235737	Feb, 1966	Niklas	250/367.
3509341	Apr, 1970	Hindel et al.	250/366.
3626189	Dec, 1971	Berg	250/385.
3683185	Aug, 1972	Muehllehner	250/213.
3703638	Nov, 1972	Allemand et al.	250/385.
3838273	Sep, 1974	Cusano	250/213.
3857036	Dec, 1974	Novak	250/367.

Other Refs:
Primary Examiner: Willis, Davis L.
Assistant Examiner:
Attorney: Barish; Benjamin J.