Abstract: A dental or medical CT imaging apparatus including a first longitudinally extending frame part. A support, construction extends substantially perpendicularly from the longitudinally extending frame part. An X-ray source and an image detector which together form an X-ray imaging assembly are mounted to the support construction. A first driving mechanism is provided to move the X-ray imaging assembly about a virtual or physical rotation axis. A control system having at least one operation mode that simultaneously controls the first driving mechanism and the X-ray imaging assembly is provided. The support construction includes at least one guiding mechanism configured to enable laterally moving at least one of the X-ray source and the image detector in relation to the support construction. A range of the lateral movement of at least one of the X-ray source and the image detector includes a base position and a first and a second extreme position.

Abstract: Embodiments of the present disclosure provide a positioning method and apparatus, and a radiation therapy system. The positioning method comprises: acquiring a current gamma angle before radiation beams of a radiation source illuminate a treatment body part; acquiring a reconstructed image corresponding to the current gamma angle, the reconstructed image being an image reconstructed according to an image of the treatment body part acquired in advance; acquiring an IGRT image of the treatment body part corresponding to the current gamma angle, the IGRT image being an image generated by an image guide system; and comparing the reconstructed image with the IGRT image to obtain a deviation of the position of the treatment body part, and sending out the deviation, so that the position of the treatment body part is adjusted according to the deviation when the deviation is greater than a preset threshold.

Abstract: Disclosed herein, inter alia, are methods and systems of image analysis useful for rapidly identifying and/or quantifying features.

Abstract: The transverse intensity distribution of a beam of x-rays or other radiation can be modulated with a multi-slit collimator device that includes one or more sets of collimator leaves arranged in a one-dimensional array and individually movable to form slits of variable width between pairs of adjacent collimator leaves. A two-dimensional intensity distribution may be achieved using multiple sets of one-dimensionally arranged leaves, e.g., by stacking them along the beam in different orientations, or by stacking them in a transverse direction to form a two-dimensional array of leaves. In some embodiments, the multi-slit collimator device also serves beam-monitoring purposes.

Abstract: An optical sensor arrangement comprises an optoelectronic device covered by a cover arrangement and being configured to emit or detect at least electromagnetic radiation with a first wavelength through an aperture of the cover arrangement. The optical sensor arrangement further comprises a mirror arrangement arranged between the optoelectronic device and the aperture and comprising a wavelength selective mirror with a passband and a stopband. The passband includes a first wavelength range including the first wavelength, the stopband includes a second wavelength range corresponding to visible light or vice versa.

Abstract: A typical configuration of the angle adjustment mechanism according to the present invention is provided with a parabolic mirror, a housing accommodating a parabolic mirror, a screw including a head arranged outside the housing and a shaft engaged with the parabolic mirror through a hole formed in the housing, and a base portion in contact with both the housing and the parabolic mirror. A force is applied to an engaging portion of the parabolic mirror in a direction approaching the housing and a force is applied to a portion of the parabolic mirror in contact with the base portion in a direction away from the housing. The angle of the parabolic mirror with respect to the housing changes in accordance with the change in the length of a portion where the shaft and the parabolic mirror engage.

Abstract: An apparatus is provided for nanoantenna-enhanced detection of infrared radiation. The apparatus includes one or more detector pixels. A plurality of detector pixels can constitute a focal plane array (FPA). Each detector pixel carries at least a first and a second subpattern of nanoantenna elements, with elements of the second subpattern interpolated between elements of the first subpattern. Each detector pixel also includes separate collection electrodes for collecting photogenerated current from the respective subpatterns.

Abstract: Exemplary embodiments include at least one modular container that can be assembled to emulate a desired atmosphere. Each container includes apertures on opposing ends of the container to allow EMR to enter and exit the container. Each container can include temperature control systems, humidity control systems, fan arrays to emulate wind/turbulence, and a plurality of sensors to measure the current conditions within the container, all of which can be installed within the containers walls.

Abstract: Embodiments described herein generally relate to: sensing and/or authentication using luminescence imaging; diagnostic assays, systems, and related methods; temporal thermal sensing and related methods; and/or to emissive species, such as those excitable by white light, and related systems and methods.

Abstract: Gamma ray detection system (10) comprising a computation system including a signal processing and control system (30), a detection module assembly (13) including at least one detection module (14) configured for detecting gamma ray emissions from a target zone (4), each detection module comprising at least one scintillator plate (16) having a major surface (40a) oriented to generally face the target zone and lateral minor surfaces (40b) defining edges of the scintillator layer, and a plurality of photon detectors coupled to said at least one scintillator plate and connected to the signal processing and control system. The scintillator plate comprises a material having isotopes intrinsically emitting radiation causing intrinsic scintillation events in one or more scintillator plates having an intensity measurable by the photon detectors.

Abstract: Herein provided is a radiation dosimeter and associated systems and methods. The radiation dosimeter comprises a light source configured for producing an input optical signal; a resonant cavity coupled to the light source for receiving the input optical signal, the resonant cavity configured for containing a fluid and for producing an output optical signal from the input optical signal indicative of a radiation dose absorbed by the fluid; and a light detector coupled to the optical fiber for obtaining the output optical signal.

Abstract: An infrared sensor includes an assembly of pixels juxtaposed in rows and in columns, each pixel integrating an imaging microbolometer and an integrator assembly. The integrator assembly includes a transistor assembled as an amplifier, and a capacitor assembled in feedback on the transistor between an output node and an integration node. The integration node is connected to a skimming transistor operating as a current mirror with a skimming control transistor offset outside of the pixel. A skimming current flowing through the skimming control transistor is controlled according to the temperature of at least one thermalized microbolometer. The current mirror assembly enables to transmit the skimming current flowing through said skimming control transistor onto the integration node so that the capacitor integrates the difference between a current flowing through the imaging microbolometer and the skimming current.

Abstract: A configuration of a time and space-resolved infrared spectroscopic analysis which can be integrated onto a chip is provided. An infrared analysis system includes a light source having a nanocarbon material as a luminescent material, and a photodetector configured to detect an infrared light emitted from the light source and transmitted through or reflected from a sample, wherein the nanocarbon material is provided on a surface of a substrate and configured to output a surface-emitted light.

Abstract: The invention relates to UV, visible light and infrared radiation sensors, in particular to high-bandwidth thin-film electromagnetic radiation sensors, operating using the principle of thermoelectric effect. According to one embodiment the sensor comprises: a thermoelectric active layer, an electrode layer one and an electrode layer two, wherein the electrode layer one is located below the thermoelectric active layer and the electrode layer two is located above the thermoelectric active layer, whereby the sensor is designed so that the thermal gradient can be created and the electrical voltage can be measured perpendicular to the thermoelectric active layer, between the electrode layer one and the electrode layer two, wherein the material of the thermoelectric active layer is low molecular weight organic compound, selected so that its thermal conductivity would be less than 1 W/(m K{circumflex over (?)}2), Seebeck coefficient modulus would be greater than 100 ?V/K and its molecular weight is less than 900 Da.

Abstract: A device for sensing infrared radiation is provided. The device for sensing infrared radiation includes a shell, a bottom cover, a Fresnel lens, an upper wire outlet hole, a lower wire outlet hole, a side wire outlet hole and an infrared probe. The infrared probe is arranged inside the shell, the shell is provided with an arc-shaped notch configured for arranging the Fresnel lens. The upper wire outlet hole is arranged on the shell and configured for leading wires, the lower wire outlet hole is provided on the bottom cover of the shell and configured for leading wires, and the side wire outlet hole is provided on the shell and configured for leading wires.

Abstract: A light detection and ranging (LIDAR) system may include a laser and a plurality of single photon avalanche diodes (SPADs) that are triggered by laser light that reflects off a target scene. The LIDAR system may be operated in a global shutter mode, so each of the SPADs may include its own time-to-digital conversion circuitry. To reduce the area required to implement the circuitry for each diode, the circuitry may be operated using cyclic histogramming, in which a first bit of a time-of-flight value may be determined using a first time period that corresponds to the emission of the laser light and the detection by the SPADs, a second bit of the time-of-flight value may be determined using a second time period that is half of the first time period, etc. In this way, the circuitry may accurately determine the signal peak while requiring less area and memory requirements.

Abstract: A “lab on a chip” includes an optofluidic sensor and components to analyze signals from the optofluidic sensor. The optofluidic sensor includes a substrate, a channel at least partially defined by a portion of a layer of first material on the substrate, input and output fluid reservoirs in fluid communication with the channel, at least a first radiation source coupled to the substrate adapted to generate radiation in a direction toward the channel, and at least one photodiode positioned adjacent and below the channel.

Abstract: Disclosed herein is a radiation detector comprising: an electronics layer comprising a first set of electric contacts and a second set of electric contacts; a radiation absorption layer configured to absorb radiation; a semiconductor substrate, portions of which extend into the radiation absorption layer in a direction of thickness thereof, the portions forming a first set of electrodes and a second set of electrodes; wherein the first set of electrodes and the second set of electrodes are interdigitated; wherein the semiconductor substrate comprises a p-n junction that separates first set of electrodes from the second set of electrodes; wherein the electronics layer and the semiconductor substrate are bonded such that the first set of electrodes are electrically connected to the first set of electric contacts and the second set of electrodes are electrically connected to the second set of electric contacts.

Abstract: An X-ray detector according to an embodiment includes a plurality of detection arrays, processing circuitry, and an analog-to-digital converter (ADC). The plurality of detection arrays includes a plurality of detecting elements, respectively. The processing circuitry performs the control to change the reading timings of the plurality of detecting elements between the plurality of detection arrays. The ADC processes signals from the plurality of detecting elements.

Abstract: The present disclosure is a infrared sensor capable of being integrated into a IR focal plane array. It includes of a CMOS based readout circuit with preamplification, noise filtering, and row/column address control. Using either a microbolometer device structure with either a thermal sensing element of vanadium oxide or amorphous silicon, a nanocomposite is fabricated on top of either of these materials comprising aligned or unaligned carbon nanotube films with IR trans missive layer of silicon nitride followed by one to five monolayers of graphene. These layers are connected in series minimizing the noise sources and enhancing the NEDT of each film. The resulting IR sensor is capable of NEDT of less than 1 mK. The wavelength response is from 2 to 12 microns. The approach is low cost using a process that takes advantage of the economies of scale of wafer level CMOS.