Imaging array and methods for fabricating same

A radiation detector, said radiation detector comprising:

• an array of detectors, each comprising:
• a first offset array comprising a first photon incident surface and a plurality of sensor elements having an aperture pitch size;
• a second offset array comprising a second photon incident surface and a plurality of sensor elements having the aperture pitch size;
• and
• 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, wherein said first and second offset array sensor elements are separated from each other by said scintillator array and are offset from each other by approximately one-half the aperture pitch size, wherein the offset is formed with respect to an axis of said scintillator array.

A method for fabricating a radiation detector, said method comprising:

• fabricating an array of detectors, wherein fabricating each detector comprises:
• fabricating a first offset array including a first photon incident surface;
• fabricating a second offset array including a second photon incident surface;
• positioning a scintillator array between the first offset array and the second offset array such that the scintillator extends from the first photon incident surface to the second photon incident surface;
• and
• placing the first and second offset arrays within the detector such that the arrays are separated from each other by the scintillator array and are offset from each other by approximately one-half detector pitch normal to an incident x-ray direction, wherein the offset is formed with respect to an axis of the scintillator array.

A method for fabricating a radiation detector, said method comprising:

• fabricating an array of detectors, wherein fabricating each detector comprises:
• fabricating a first offset array including a first photon incident surface including a plurality of sensor elements including a plurality of photosensor devices;
• fabricating a second offset array including a second photon incident surface including a plurality of sensor elements including a plurality of photosensor devices;
• positioning a scintillator array between the first offset array and the second offset 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;
• and
• placing the first and second offset arrays within the detector such that the arrays are separated from each other by the scintillator array and are offset from each other by approximately one-half detector pitch normal to an incident x-ray direction, wherein the offset is formed with respect to an axis of the scintillator array.