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US 11,076,820 B2Granted
Tomosynthesis with shifting focal spot x-ray system using an addressable array
AssigneeHologic, Inc.
InventorsAndrew P. Smith, John Laviola
Life of this patent
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AssigneeHologic, Inc.
InventorsAndrew P. Smith, John Laviola
Estimating the term…
A tomosynthesis system has an x-ray source with an addressable array of electron emitting sections on the cathode. The x-ray source moves rotationally about an imaging target, such as a breast. During the rotation, x-rays are emitting from the x-ray source while the x-ray source continues to move. During the emission of x-rays, different subsets of electron-emitting sections of the addressable array are activated to compensate for movement of the x-ray source. By activating the different subsets of electron-emitting sections, an effective focal spot of the x-ray position appears to retain the same shape, size, and position from the perspective of the imaging target, despite movement of the x-ray source itself.
A system for radiographic imaging, the system comprising:
A method for radiographic imaging, the method comprising:
A method for radiographic imaging, the method comprising:
A radiation source, for use in radiographic imaging, comprising a cathode including a three-dimensional addressable array comprising a plurality of cathode plates having a plurality of addressable electron-emitting sections, wherein electron density emitted from the cathode is greater than an electron density that would be produced from the cathode plates if the cathode plates were arranged in a two-dimensional configuration.
Dependencies are inferred from the claim text.