摘要:
An x-ray detector assembly includes a first flat panel digital projection detector and a second flat panel digital projection detector. The x-ray detector assembly further includes a first detector mounting structure configured to align the first flat panel digital projection detector in a first position to block the second flat panel digital projection detector from receiving x-rays emitting from an x-ray source toward the second flat panel digital projection detector in an x-ray penetration direction.
摘要:
Methods and apparatus for an imaging system are provided. The imaging system includes a gantry having a stationary member coupled to a rotating member. The rotating member has an opened area proximate an axis about which the rotating member rotates. An x-ray source provided on the rotating member. An x-ray detector may be disposed on the rotating member and configured to receive x-rays from the x-ray source. A rotary transformer having circumferentially disposed primary and secondary windings may form part of a contactless power transfer system that rotates the rotatable portion of the gantry at very high speeds, the primary winding being disposed on the stationary member and the secondary winding being disposed on the rotating member.
摘要:
A composition including at least one of a glass composition and a glass ceramic composition, the composition includes a plurality of scintillator crystals.
摘要:
A scintillator array for use in a CT imaging system and a method for making the scintillator array are provided. The scintillator array includes a plurality of projecting elements disposed proximate one another. The scintillator array further includes a glass compound containing a plurality of reflective particles being disposed on the plurality of projecting elements, wherein the projecting elements emit light in response to receiving x-rays.
摘要:
A photodiode detector assembly for use with an ionizing radiation detector, the assembly includes a first layer having a first side and a second side and an array of backlit photodiodes disposed at the second side, and a second layer disposed proximate to and opposing the second side of the first layer. The second layer includes thru vias. Light rays entering the first layer at the first side and impinging the backlit photodiodes at the second side result in electrical signals at the thru vias of the second layer, thereby providing electrical output signals from the backlit photodiodes at a distance from the backlit photodiodes.
摘要:
A radiation detector includes a scintillator layer configured to absorb radiation emitted from a radiation source and to emit optical photons in response to the absorbed radiation. The radiation detector also includes a photodetector layer configured to absorb the optical photons emitted by the scintillator layer. The radiation detector further includes a reflector configured to reflect the optical photons emitted by the scintillator layer towards the photodetector layer and to absorb select wavelengths of optical photons associated with an afterglow emitted by the scintillator layer.
摘要:
An x-ray detector assembly includes a curvilinear detector assembly that has a first side section that includes a first plurality of detector modules, a second side section that includes a second plurality of detector modules, and a third section that includes a third plurality of detector modules. The third section is positioned between the first and second side sections in a channel direction. The x-ray detector assembly also includes a first flat panel digital projection detector and a first detector mounting structure that is configured to align the first flat panel digital projection detector in a first position to block the third section of the curvilinear detector assembly from receiving x-rays emitting from an x-ray source toward the curvilinear detector assembly in the x-ray penetration direction.
摘要:
An x-ray detector assembly includes a first curvilinear detector assembly comprising a first plurality of detector modules, a second curvilinear detector assembly comprising a second plurality of detector modules, and a first flat panel digital projection detector arranged between the first and second curvilinear detector assemblies such that a first end of the first flat panel digital projection detector is coupled to an inner end of the first curvilinear detector assembly and a second end of the first flat panel projection detector is coupled to an inner end of the second curvilinear detector assembly.
摘要:
A method of fabricating a collimator assembly includes attaching a first layer to a second layer and forming channels through the attached first layer and second layer. Openings are disposed in the first and second layers before attaching the first and second layers. The openings of the first and second layers are aligned before forming the channels. Forming channels includes removing material of the first layer, the second layer or both layers. The attachment of the first and second layers defines an overall thickness of the collimator assembly. A thickness of the first layer ranges from about 5% to about 10% of the overall thickness.