Gamma camera including a scintillator and an image intensifier
First Claim
Patent Images
1. A gamma-ray detection device, comprising:
- a scintillator configured to convert gamma rays into optical radiation;
an optical image intensifier configured to intensify the optical radiation to generate intensified optical radiation;
an optical coupling system configured to guide the intensified optical radiation; and
a solid state detector configured to detect the intensified optical radiation to generate an interaction image representing a gamma-ray energy emission.
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Abstract
A gamma-ray or X-ray detection device including a scintillator configured to convert gamma rays or X-rays into optical radiation, an optical image intensifier configured to intensify the optical radiation to generate intensified optical radiation, an optical coupling system configured to guide the intensified optical radiation, and a solid state detector configured to detect the intensified optical radiation to generate an interaction image representing a gamma-ray or X-ray energy emission.
19 Citations
17 Claims
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1. A gamma-ray detection device, comprising:
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a scintillator configured to convert gamma rays into optical radiation; an optical image intensifier configured to intensify the optical radiation to generate intensified optical radiation; an optical coupling system configured to guide the intensified optical radiation; and a solid state detector configured to detect the intensified optical radiation to generate an interaction image representing a gamma-ray energy emission. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 13, 14)
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10. A method of estimating a horizontal position, a vertical position, a depth, and an energy of interaction of a gamma-ray in a scintillator, comprising the steps of:
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absorbing a gamma-ray in a scintillator to convert gamma-ray energy into optical photons to produce an optical image on a rear surface of the scintillator; intensifying the optical image to produce an intensified image; projecting the intensified image onto an image sensor; capturing the intensified image and converting the intensified image into a digital data image; and processing the digital data image by a maximum-likelihood estimation to estimate the horizontal position, the vertical position, the depth, and the energy of the interaction of the gamma-ray in the scintillator. - View Dependent Claims (11, 12)
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15. A gamma-ray detection apparatus, comprising:
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a scintillator configured to convert gamma rays into optical radiation; a first optical image intensifier configured to intensify optical radiation from a first portion of a rear surface of the scintillator to generate first intensified optical radiation; a second optical image intensifier configured to intensify optical radiation from a second portion of the rear surface of the scintillator to generate second intensified optical radiation; a first and second optical coupling system configured to guide the first and second intensified optical radiation, respectively; and a first and second solid state detector configured to detect the first and second intensified optical radiation to generate a first and second interaction image, respectively, representing a gamma-ray energy emission. - View Dependent Claims (16, 17)
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Specification