Abstract: The present disclosure relates to a cavity of a medical device. The cavity may include a bore and an accommodating cavity configured to provide an accommodating space for at least a portion of a couch in a radial direction of the bore. The accommodating cavity may be disposed on an inner wall of the bore and extend along an axial direction of the bore, and the accommodating cavity may be configured to form, with the bore, a connected space in which the at least a portion of the couch is allowed to move along an axial direction of the bore.

Abstract: Provided is a radiographic image display device that includes a display on which a first focus highlight to focus on one imaging condition among multiple imaging conditions and a second focus highlight to focus on a button for displaying a taken image are displayed; and a hardware processor. After completion of an imaging session in the one imaging condition, the hardware processor transitions the first focus highlight to an imaging condition for a next imaging session and transitions the second focus highlight to the button for displaying an image taken in the one imaging condition. The hardware processor controls a transition destination of at least one of the first focus highlight and the second focus highlight according to a type of the next imaging session performed after the imaging session in the one imaging condition.

Abstract: There is provided a computer implemented method of controlling movement of an object, comprising: accessing a current image of a surface relative to an object at a current location, wherein an imaging sensor is set to capture the current image depicting an overlap with a previously captured image of the surface when the object was at a previous location, registering the current image to the overlap of the previously captured image, computing the current location of the object relative to a reference location according to an analysis of the registration, and feeding the current location into a controller for controlling movement of the object.

Abstract: Provided is an evaluation method capable of evaluating stress on a bond which is difficult to detect by Raman spectroscopy. The present disclosure relates to an evaluation method including using infrared absorption spectra measured on a rubber specimen under application of no tensile force and under application of a tensile force to calculate an amount of peak shift caused by application of the tensile force, and evaluating stress in the rubber specimen from the amount of peak shift.

Abstract: A radiographic phantom comprises: a body comprising a wax material or a wax-like material, wherein the body has an x-ray attenuation value that is approximately the same as that of a human tissue; and a plurality of crystalline test objects positioned on or within the body. A method comprises: obtaining a radiographic phantom comprising a body and a plurality of crystalline test objects positioned on or within the body, wherein the body comprises a wax material or a wax-like material, and wherein the body has an x-ray attenuation value that is approximately the same as that of a human breast tissue; performing an operation of the radiographic phantom and using a device; and assessing a performance of the device based on the operation.

Abstract: A radiation detecting device includes a radiation detector and a supporter. The radiation detector includes a substrate that has flexibility and a semiconductor element formed on an imaging surface of the substrate. The supporter is formed of foam and supports the radiation detector.

Abstract: A radiation detector may include an active structure having an input face and an output face for incident ionizing radiation. The active structure may include: a first organic scintillator including at least one neutron-absorbing material and enabling discrimination between fast neutrons, thermal neutrons, and photons; at least one second scintillator arranged in front of the first scintillator and capable of preferentially detecting the alpha and/or beta radiation, the two scintillators having, due to the choice of their constituents, different mean pulse decay constants, and the second scintillator having a thickness smaller than the first.

Abstract: A method and a system for a TOF-PET scanner, the TOF-PET scanner including a scintillation chamber and a detection system comprising detection modules that surround the scintillation chamber. The method includes, for each detection module being calibrated, determining distributions of lifetimes of positrons based on differences of the times of registration of annihilation quanta and of the times of registration of the de-excitation quanta assigned to the common events and registered by the module being calibrated; extracting, from the determined distributions of lifetimes of positrons, a distribution of lifetimes of positrons with annihilation by para-positronium; and determining a time delay constant based on the extracted distributions of lifetimes of positrons with annihilation by para-positronium.

Abstract: There is provided a retroreflector device, comprising: an incident object made of a material transparent to electromagnetic radiation, the incident object designed to refract an incident ray hitting an incident surface to generate a refracted ray that hits a back surface, and a retroreflective surface positioned in proximity to the back surface of the incident object, wherein the retroreflective surface and the incident object are configured to refract the incident ray to generate the refracted ray for hitting the retroreflective surface at an angle of incidence below a threshold.

Abstract: Disclosed herein are light sheet imaging systems for imaging fluorescent samples. Also disclosed herein are sample holder systems for high throughput light sheet imaging of multiple three-dimensional samples without user intervention. Further disclosed herein are automated image processing methods to identify and quantify fluorescent particles within three-dimensional image sets without user intervention or user bias.

Abstract: Provided are methods for sequential radiotherapies, such as XRT. In some embodiments, a higher dosage of an XRT may first be administered to a subject, optionally in combination with an immunotherapy, and subsequently a lower dosage XRT is administered to the subject to treat a cancer. Separating the dosage and intensity of the radiotherapies can be used to achieve improved therapeutic responses, such as improved anti-cancer responses, survival times, and/or abscopal effects.

Abstract: Systems and methods include a computer-implemented method for analyzing rock samples. Rock and oil electromagnetic baselines are determined for rock samples in at least a section of an electromagnetic spectrum ranging from ultraviolet to long terahertz radiation. An aging process is conducted on each rock sample, initially starting with the rock and oil electromagnetic baselines. The aging process is repeated using spectrometry on the rock sample and measured wettabilities of the rock sample until changes in spectra are less than a predetermined threshold. Aging information including the spectra and wettabilities are stored in a machine learning database. Spectra are obtained from an unknown rock sample. The spectra are mapped to clusters in the machine learning database. Wettability ranges are determined for the unknown rock sample based on a mapping of the spectra of the unknown rock sample to clusters in the machine learning database.

Abstract: The present invention relates to an optical sensing element for detection of a narcotic, the optical sensing element comprising a fluorescent sensing compound provided on a substrate, wherein emission of the fluorescent sensing compound is quenched in the presence of the narcotic, and wherein the fluorescent sensing compound is non-polymeric and comprises an electron donor moiety, an electron acceptor moiety and a moiety that influences solubility of the compound in a solvent. Sensing devices incorporating the sensing element and methods of detecting narcotics are also described.

Abstract: The optical interrogation technique can use an optical prism having two opposite sides including a sample side and a refraction side, the sample side having a plurality of interrogation areas; a source assembly generating a collimated field of illumination directed towards the refraction side; a screen disposed in a screen plane intersecting the field of illumination and shielding the refraction side from the field of illumination, the screen having an aperture allowing a portion of the field of illumination to reach and be refracted by the refraction side, be totally internally reflected at one of said interrogation areas of the sample side, thereby generating a signal, the signal refracted back through the aperture, the screen being movable within the screen plane to shift the aperture and expose different portions of the field of illumination to corresponding ones of the interrogation areas.

Abstract: Provided is a backscattered X-ray image device based on multi-sources. The backscattered X-ray image device includes an X-ray tube array configured to generate X-rays, first slit plates provided on the X-ray tube array and having a first slit through which the X-rays pass, second slit plates provided on the first slit plates and having second slits defined in a direction different from that of the first slit, and detectors provided on the second slit plates and having a narrow gap in the same direction as the first slit, the detectors being configured to detect a backscattered beam that is emitted from a subject receiving the X-rays.

Abstract: An X-ray diagnosis apparatus according to an embodiment includes an imaging system and a processing circuitry. The imaging system is configured to perform an imaging process on an examined subject by emitting X-rays onto the examined subject. The processing circuitry is configured to execute the imaging process on the examined subject by controlling the imaging system in an imaging mode selected from between an X-ray fluoroscopy imaging mode for obtaining an X-ray projection fluoroscopic image of the examined subject and a Computed Tomography (CT) imaging mode for obtaining a CT image of the examined subject and is configured to perform a super resolution process corresponding to the imaging mode.

Abstract: Provided is a method for determining tube electrical parameters. The method includes: acquiring target projection data of an imaging device in scanning a target object at a first scan angle; acquiring target noise data corresponding to the target object; determining current noise data corresponding to the target projection data; and determining, based on the target noise data and the current noise data, the tube electrical parameters of the imaging device in scanning the target object at a second scan angle.

Abstract: A multi-layer X-ray detector comprises a first X-ray converter, a first sensor, a second X-ray converter, a second sensor, and an internal anti-scatter device. The first sensor is located at a first sensor layer and is configured to detect radiation emitted from the first X-ray converter. The second sensor is located at a second sensor layer and is configured to detect radiation emitted from the second X-ray converter. The first X-ray converter and the first sensor form a first detector pair, and the second X-ray converter and the second sensor form a second detector pair. The internal anti-scatter device comprises a plurality of X-ray absorbing septa walls and is located between the first detector pair and the second detector pair. No structure of the internal anti-scatter device is located within either layer of the first detector pair, and no structure of the anti-scatter device is located within either layer of the second detector pair.

Abstract: The present disclosure relates to methods and systems for assessing the quality of a meat product. In certain embodiments, the present disclosure provides a method of assessing quality of a meat product, the method comprising receiving data representative of light emitted from the meat product upon application of incident light to the meat product, analysing the data to determine one or more parameters indicative of quality of the meat product, and assessing the quality of the meat product on the basis of the one or more parameters.

Abstract: Operations of radiometers may be improved by calculating calibration uncertainties for the radiometer. Initially, operational characteristics for the radiometer, and/or historical calibration parameters for a plurality of previously performed calibration processes using the radiometer may be obtained. Additionally, a calibration uncertainty for the radiometer based on the obtained operational characteristics for the radiometer and the obtained historical calibration parameters may be calculated, and desired, calibration parameters for the radiometer may be identified. The identified desired, calibration parameters may be based on the calculated, calibration uncertainty.