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US 4,058,727 AGranted
Gamma camera with reflectivity mask
AssigneeRaytheon Company
InventorKarl J. Stout
Life of this patent
Estimating the term…
Abstract
A gamma camera with a plurality of photodetectors arranged for locating flashes of light produced by a scintillator in response to incident radiation. Masking material is arranged in a radially symmetric pattern on the front face of the scintillator about the axis of each photodetector to reduce the amount of internal reflection of optical photons induced by gamma ray photons.
Claims8
A radiographic camera comprising:
- a scintillator;
- a plurality of photodetectors positioned to face said scintillator;
- a plurality of nonreflective mask regions formed upon the front face of said scintillator opposite said photodetectors and positioned coaxially with respective ones of said photodetectors for decreasing the amount of internal reflection of optical photons generated within said scintillator, an individual one of said mask regions being in line with an axis of an individual one of said photodetectors.
Dependencies are inferred from the claim text.