Abstract: Embodiments include a device, comprising: a column line; a plurality of pixels; each pixel coupled to the column line; a comparator having an input coupled to the column line and configured to compare a signal from the column line to a threshold; and control logic coupled to the pixels and configured to selectively couple each pixel to the column line after a sampling period for each pixel.

Abstract: Some embodiments include a method, comprising: integrating an input signal using an integrator to generate an integrated signal; comparing the integrated signal to a threshold; and injecting an offset signal into the integrator in response to comparing the integrated signal to the threshold such that the integrated signal passes the threshold.

Abstract: A system operable for detecting radiation to scan an object includes scintillators that have respective lengths that are greater than their respective widths and an imager that has a planar array of pixels. The scintillators are coupled to the imager with their respective longitudinal axes parallel to each other. An incoming radiation beam that has passed through the object enters the scintillators through respective surfaces of the scintillators that are transverse to the longitudinal axes, and is converted by the scintillators into light that is received by respective subsets of the planar array of pixels.

Abstract: An X-ray imaging device includes a first wireless communication module coupled to a first set of antennas; a second wireless communication module coupled to a second set of antennas; and a controller that is coupled to the first wireless communication module and the second wireless communication module. The controller is configured to receive a first value for a wireless performance metric for the first wireless communication module while the X-ray imaging device, receive a second value for the wireless performance metric for the second wireless communication module while the X-ray imaging device, based on the first value and the second value, determine a first wireless communication function to be performed by the first wireless communication module, and cause the first wireless communication module to perform the first wireless communication function.

Abstract: Some embodiments include a structure, comprising: an insulator forming at least a part of a wall of a vacuum chamber, the insulator having a first end and a second end wider than the first end; a first conductive structure disposed at the first end of the insulator; and a second conductive structure disposed at the second end of the insulator, contacting the insulator, and including at least a portion surrounded by the insulator; wherein: a portion of an outer surface of the insulator extends radially outward from a triple junction between the insulator, the second conductive structure, and a medium contacting the outer surface of the insulator.

Abstract: Some embodiments include determining a value of an identified pixel of a plurality of pixels of an image from a detector; determining a noise value based on the value of the identified pixel and the detector; determining a range based on the noise value and the value of the identified pixel; comparing the range and a value of at least one pixel of the pixels other than the identified pixel; and adjusting the value of the identified pixel in response to the comparison.

Abstract: Embodiments include a vacuum device, comprising: an enclosure configured to enclose a vacuum, comprising an external base forming at least a portion of the enclosure; an internal base within the enclosure; and at least one thermal dissipative strap assembly, comprising: an internal base thermal conductive base in contact with the internal base, an external base thermal conductive base in contact with the external base, and a flexible thermal dissipative strap coupling the internal base thermal conductive base to the external base thermal conductive base.

Abstract: Embodiments include a vacuum device, comprising: an enclosure configured to enclose a vacuum, the enclosure including an external base including an opening; an internal base within the enclosure; and an adjustable support assembly adjustably coupling the internal base to the external base and extending through the opening, the adjustable support assembly comprising: a threaded shaft extending along a longitudinal axis and coupled to the internal base; a threaded hole component threadedly engaged with the threaded shaft and coupled to the external base such that the threaded hole component is axially constrained in a direction along the longitudinal axis relative to the external base independent of the threaded shaft; and a flexible component coupled to the external base and the threaded shaft and sealing the opening.

Abstract: Technology is described for electronically aligning a central ray of an x-ray tube to a radiation detector. In an example, an x-ray system includes an x-ray tube and a tube control unit (TCU). The x-ray tube includes a cathode that includes an electron emitter configured to emit an electron beam, an anode configured to receive the electron beam and generate x-rays with a central ray from electrons of the electron beam colliding on a focal spot of the anode, and a steering magnetic multipole between the cathode and the anode that is configured to produce a steering magnetic field from a steering signal. At least two poles of the steering magnetic multipole are on opposite sides of the electron beam. The TCU includes at least one steering driver configured to generate the steering signal. The TCU is configured to convert an offset value to the steering signal.

Abstract: Technology is described for calibrating a deflected position of a central ray of an x-ray tube to a radiation imager. An x-ray system includes an x-ray tube and a tube control unit (TCU). The x-ray tube includes a cathode that includes an electron emitter configured to emit an electron beam, an anode configured to receive the electron beam and generate x-rays with a central ray from electrons of the electron beam colliding on a focal spot of the anode, and a steering magnetic multipole between the cathode and the anode that is configured to produce a steering magnetic field from a steering signal. At least two poles of the steering magnetic multipole are on opposite sides of the electron beam. The TCU includes at least one steering driver configured to generate the steering signal. The TCU is configured to convert a position correction value to the steering signal.

Abstract: Some embodiments include a system comprising: a first control logic configured to receive a first trigger and generate a second trigger in response to the first trigger the second trigger having a delay relative to the first trigger of a configurable number of cycles of a counter of the first control logic; a second control logic configured to receive the second trigger and generate a third trigger in response to the second trigger the third trigger having a delay relative to the second trigger of a configurable number of cycles of a counter of the second control logic; and a third control logic configured to receive the second trigger and generate a fourth trigger in response to the second trigger the fourth trigger having a delay relative to the second trigger of a configurable number of cycles of a counter of the third control logic. A particle beam may be accelerated in response to the triggers.

Abstract: Some embodiments include a method, comprising: integrating an input signal using an integrator to generate an integrated signal; comparing the integrated signal to a threshold; and injecting an offset signal into the integrator in response to comparing the integrated signal to the threshold such that the integrated signal passes the threshold.

Abstract: Some embodiments include a method, comprising: attaching a carrier substrate to a side of at least one semiconductor substrate, the at least one semiconductor substrate including photodetectors on the side; thinning the at least one semiconductor substrate while the at least one semiconductor substrate is attached to the carrier substrate; attaching an optical substrate to the at least one semiconductor substrate while the at least one semiconductor substrate is attached to the carrier substrate; and removing the carrier substrate from the at least one semiconductor substrate.

Abstract: A communication channel for an X-ray imaging system may operatively couple a first imaging component to a second imaging component. The communication channel may include a first connector configured to couple to the first imaging component, a second connector configured to couple to the second imaging component, and a first authentication module configured to authenticate with the second imaging component.

Abstract: Man-portable radiation generation sources and systems that may be carried by hand to a site of interest by one or two people, are disclosed. Methods of use of such sources and systems are also disclosed. Battery operated radiation generation sources, air cooled radiation generation sources, and charged particle accelerators, are also disclosed. A radiation generation source, a radiation scanning system, and a target assembly comprising target material having a thickness of less than 0.20 mm are also disclosed.

Abstract: In one embodiment, a radiation detector may include a housing, a scintillator, a photosensor array, and a first converter. The housing may include a first image cover associated with a first surface configured to receive incident radiation generated at a first voltage range, and a second image cover associated with a second surface configured to receive incident radiation generated at a second voltage range. The first voltage range may be different than the second voltage range. The scintillator may be disposed within the housing to convert the incident radiation at the first voltage range or the incident radiation at the second voltage range into converted optical photons. The photosensor array may be optically interfaced with the scintillator to receive the optical photons from the scintillator. The first converter may be configured to interact with the incident radiation generated at the first voltage range.

Abstract: An X-ray imaging device includes a first wireless communication module coupled to a first set of antennas; a second wireless communication module coupled to a second set of antennas; and a controller that is coupled to the first wireless communication module and the second wireless communication module. The controller is configured to receive a first value for a wireless performance metric for the first wireless communication module while the X-ray imaging device is disposed in a current location, receive a second value for the wireless performance metric for the second wireless communication module while the X-ray imaging device is disposed in the current location, based on the first value and the second value, determine a first wireless communication function to be performed by the first wireless communication module, and cause the first wireless communication module to perform the first wireless communication function.

Abstract: An X-ray sensing apparatus includes a first photodiode array for imaging a first area, a second photodiode array for imaging a second area that overlaps a portion of the first area, and a light-blocking layer coupled to the first photodiode array that prevents at least a portion of visible light emitted by a scintillator layer of the X-ray sensing apparatus from reaching the second photodiode array. The light-blocking layer includes a first feature that is imagable by the second photodiode array and indicates a position along a first direction and a second feature that is imagable by the second photodiode array and indicates a position along a second direction that is different than the first direction.

Abstract: Embodiments include a detector with a flexible scintillator screen and a flexible photosensor array and an apparatus with supports coupled to the ends of the detector. The apparatus enables the detector to either flex repeatedly or be flexed and then fixedly held in a flexed configuration.

Abstract: Some embodiments include determining a value of an identified pixel of a plurality of pixels of an image from a detector; determining a noise value based on the value of the identified pixel and the detector; determining a range based on the noise value and the value of the identified pixel; comparing the range and a value of at least one pixel of the pixels other than the identified pixel; and adjusting the value of the identified pixel in response to the comparison