Imaging array and methods for fabricating same
AssigneeGeneral Electric Company
InventorsBaorui Ren, William Robert Ross
Life of this patent
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Abstract
A radiation detector includes a first array including a first photon incident surface, a second array including a second photon incident surface, and a scintillator array extending from the first photon incident surface to the second photon incident surface.
Claims23
A radiation detector, said radiation detector comprising:
- a first array comprising a first photon incident surface;
- a second array comprising a second photon incident surface;
- and
- a scintillator array extending from said first photon incident surface to said second photon incident surface.
A radiation detector, said radiation detector comprising:
- a first array comprising a first photon incident surface;
- a second array comprising a second photon incident surface;
- said first array and said second array comprise a plurality of sensor elements comprising a plurality of photosensor devices.
- a scintillator array extending from said first photon incident surface to said second photon incident surface, said scintillator array is configured to direct at least a portion of a plurality of optical photons to said first photon incident surface and said second photon incident surface, said scintillator comprising a fiber optic scintillator having a plurality of optical fibers bundled in an array and disposed such that said x-rays are incident on said fiber optic scintillator substantially perpendicular to a respective optical axis of said plurality of optical fibers, said fiber optic scintillator further being optically coupled to at least two of said sensor elements such that said sensor elements are disposed at both ends of the plurality of optical fibers
A method for fabricating a radiation detector, said method comprising:
- fabricating a first array including a first photon incident surface;
- fabricating a second array including a second photon incident surface;
- and
- positioning a scintillator array between the first array and the second array such that the scintillator extends from the first photon incident surface to the second photon incident surface.
A method for fabricating a radiation detector, said method comprising:
- fabricating a first array including a first photon incident surface including a plurality of sensor elements including a plurality of photosensor devices;
- fabricating a second array including a first photon incident surface including a plurality of sensor elements including a plurality of photosensor devices;
- positioning a scintillator array between the first array and the second array such that the scintillator extends from the first photon incident surface to the second photon incident surface, the scintillator array is configured to direct at least a portion of a plurality of optical photons to the first photon incident surface and the second photon incident surface, the scintillator including a fiber optic scintillator including a plurality of optical fibers bundled in an array and disposed such that the x-rays are incident on the fiber optic scintillator substantially perpendicular to a respective optical axis of the plurality of optical fibers, the fiber optic scintillator further being optically coupled to at least two of the sensor elements such that the sensor elements are disposed at both ends of the plurality of optical fibers.
A computed tomography (CT) imaging system imaging system for generating an image of an object, said imaging system comprising:
- a detector array comprising:
- a first array comprising a first detector pitch (d);
- and
- a second array comprising a second detector pitch (d) equivalent to said first detector pitch, said second detector offset from said first detector by approximately one-half detector pitch;
- at least one radiation source;
- and
- a computer coupled to said detector array and said radiation source, said computer configured to:
- sample said first array and said second array using a step size of approximately one-half detector pitch;
- and
- reconstruct an image of the object using the first array samples and the second array samples.
Dependencies are inferred from the claim text.