摘要:
A mammography scanning system having a detector includes an arc-shaped support system having a number of X-ray emitters coupled thereto. The X-ray emitters generate a plurality of X-ray fluxes towards a common focus at varying angles with respect to the focus. Also, each of the X-ray emitters is collimated to view an entire detector field of view.
摘要:
A system, method, and apparatus includes a computed tomography (CT) detector array having a central region with a plurality of central region detecting cells configured to acquire CT data of a first number of slices during a scan, a first wing along a first side of the central region, and a second wing along a second side of the central region opposite the first side. The first wing includes a plurality of first wing detecting cells configured to acquire CT data of a second number of slices during the scan. The second wing includes a plurality of second wing detecting cells configured to acquire CT data of a third number of slices during the scan. The second and third number of slices are less than the first number of slices. The first wing detecting cells are of a different type than the central region detecting cells.
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 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:
A photodiode element includes a first layer of a first diffusion type and a second layer. The second layer defines a charge-collecting area. The charge-collecting area includes an active region of a second diffusion type and an inactive region. The active region surrounds the inactive region. The photodiode element also includes an intrinsic semiconductor layer between the first layer and the second layer.
摘要:
A photodiode element includes a first layer of a first diffusion type and a second layer. The second layer defines a charge-collecting area. The charge-collecting area includes an active region of a second diffusion type and an inactive region. The active region surrounds the inactive region. The photodiode element also includes an intrinsic semiconductor layer between the first layer and the second layer.
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:
A temperature regulator provides thermoelectric temperature control in a X-ray detector. The temperature regulator maintains the temperature within the X-ray detector by controlling current through a thermoelectric device. The temperature regulator can both heat and cool the X-ray detector.
摘要:
A computer input device includes a non-conductive substrate with a first conductive pattern formed by a plurality of first conductive elements positioned on the substrate surface circumferentially around a circle. A second conductive pattern formed by a plurality of second conductive elements, each positioned on the surface between two first conductive elements. A contact member has a conductive surface which when manually operated by a user selectively connects one or more of the first conductive elements to one or more of the second conductive elements. The ones of the second conductive elements so connected can be detected to produce a signal indicating an angular direction in which a cursor on a computer screen.
摘要:
A CT system includes a rotatable gantry having an opening to receive an object to be scanned, the rotatable gantry having a detector mounting surface, an x-ray source attached to the gantry and configured to project an x-ray beam toward the object, a plurality of detector modules each mounted within one field-of-view (FOV) and mounted directly to the detector mounting surface of the rotatable gantry, a data acquisition system (DAS) configured to receive outputs from at least one of the plurality of detector modules, and a computer programmed to acquire projections of imaging data of the object from the DAS, and generate an image of the object using the imaging data.