Abstract: An apparatus for x-ray inspection of a tubular member. The apparatus has a frame comprised of first and second axially spaced split side sections which can be positioned around the tubular member. There is a carousel rotatable mounted on the frame which, like the frame members, is made of split side members which can be positioned around the tubular member. There is an x-ray source and a flat panel x-ray detector mounted on the carousel at a desired circumferentially spaced distance from one another. A driver is mounted on the frame and operatively connected to the carousel to rotate the carousel relative to the frame.

Abstract: Among other things, a guide unit and a radiation system including a guide unit are provided. The guide unit limits axial movement of a rotatable structure supporting a radiation source and a detector array of the radiation system. Embodiments of the guide unit include a frame member configured to be supported by a stationary unit that forms a portion of the radiation system. A guide wheel coupled to the frame member is configured to roll along a periphery of the rotatable structure of the radiation system as the rotatable structure supporting the radiation source and the detector array is rotated about an axis of rotation during operation of the radiation system. A wheel adjustment system coupled to the frame member linearly translates the guide wheel toward the periphery of the rotatable structure supported by the stationary unit of the radiation system.

Abstract: The present disclosure generally relates to the field of radiation treatment. More specifically, the present disclosure generally relates to methods and radiation treatment systems for generating a radiation treatment plan. According to one example embodiment, a method may comprise dividing at least one dose characteristic related to a dose distribution for a ROI into a plurality of subintervals. The method may further comprise partitioning the ROI into a plurality of different partitions based on the subintervals. All voxels of the ROI with values within the same subinterval are partitioned into the same partition. For each of the plurality of different partitions, the method may comprise establishing a weight and specifying an optimization function for an obtainable dose distribution based on the respective subinterval of dose characteristics. The method may further comprise generating the radiation treatment plan based on said established weights and specified optimization functions.

Abstract: A radiation imaging apparatus in which a detection unit configured to generate an image signal corresponding to incident radiation and a control unit are arranged in one housing is provided. The radiation imaging apparatus further comprises a notification unit arranged in the housing and configured to show a state of the radiation imaging apparatus. While causing the detection unit to perform a continuous capturing operation of a radiation image, the control unit performs control so that the notification unit will perform notification of the ongoing capturing operation.

Abstract: A method of image-guided radiation treatment is described. The method may include acquiring digitally reconstructed radiographs (DRRs) of a patient and generating a first set of image data of part or all of the patient using imaging radiation at a first energy level and a second set of image data of part or all of the patient using imaging radiation at a second energy level. The method may also include processing the first and second sets of image data to generate an enhanced image, wherein the enhanced image comprises a combination of the first and second sets of image data, and wherein part or all of the image data comprises the target. The method may also include registering the enhanced image with the DRRs to obtain a registration result, tracking movement and position of the target using the registration result to generating tracking information.

Abstract: Disclosed herein is a mobile x-ray imaging apparatus having an improved structure to prevent breakage of or damage to an x-ray detector. One or more damping units are installed at base plates of one or more slots. The one or more damping units minimize an impact that may be applied to one or more x-ray detectors in a process of storing the one or more x-ray detector in the one or more slots.

Abstract: A system includes a focusing system, a radiation detector, and a controller. The focusing system is configured to receive an incident radiation beam from a radiation source and focus the incident radiation beam on a portion of a component of a high temperature mechanical system. The incident radiation beam scatters from the portion of the component as a diffracted radiation beam. The focusing system is further configured to focus the diffracted radiation beam from the portion of the component on the radiation detector. The radiation detector is configured to detect a diffraction pattern of the diffracted radiation beam from the portion of the component. The controller is configured to determine a temperature of the portion of the component based on the diffraction pattern.

Abstract: A system or method for improving quality in projection and tomographic x-ray, which includes a depth sensing device to measure a depth of at least one body part of a patient from the depth sensing device and a control unit to calculate a thickness and/or circumference of the body part using the depth information. The calculated thickness and circumference information is used to determine an optimal level of x-ray exposure for the body part. The system or method also includes a camera to identify the body part that needs to be examined and to detect any motion of the identified body part.

Abstract: The present invention is directed to a method for measuring scalp care agents on/in skin or other substrate comprising the following steps: selecting a location within the treated area on the skin or other substrate; irradiate treated area using an actinic radiation source; and measure a resulting fluorescent emission of the scalp care agent or a photoconverted scalp care agent using either the actinic radiation source or a second radiation source to excite the sample.

Abstract: An X-ray computer tomography (CT) apparatus according to an embodiment includes processing circuitry. The processing circuitry an operation to change information relating to a range of a part that is defined based on a plurality of anatomical landmarks in any one of image data of a subject and image data of a virtual patient image. The processing circuitry performs any one of a first setting processing and a second setting processing, the first setting processing of changing a part of the anatomical landmarks to define the range of the part, the second setting processing of setting, for a part of the anatomical landmarks, a position departed therefrom by a predetermined length in a predetermine direction as an actual anatomical landmark.

Abstract: A method for detecting notoginseng using terahertz technology. The notoginseng samples are pulverized in pulverizer. The pulverized samples are mixed with polyethylene powder in the ratio of 1:4 to 1:6. The powder mixture is pressed in a tablet press to obtain notoginseng tablet. Terahertz spectrograph is started. A peak is saved, and a background signal is measured. The time-domain graph of the background without sample is acquired. The time-domain graphs of the notoginseng tablets are acquired. The time-domain graphs are transformed into frequency-domain graphs by Fourier transform. The frequency-domain graphs are converted to obtain absorption spectrum of the notoginseng tablets. The absorption peak position of test tablet is compared with that of standard tablet to determine its authenticity. The concentration of key active substances of the notoginseng test sample is quantitatively analyzed by integrating the area under absorption peak curve of the notoginseng test sample.

Abstract: A radiographic image capturing apparatus includes a substrate in which pixels are arranged in a matrix, the pixels each including a sensor element for generating an electrical signal corresponding to a dose of an incident radiation, a read transistor for outputting the electrical signal, and a reset transistor for performing initialization, and a shift register that outputs a control signal for sequentially selecting pixels of each row, in which a control signal used to control read transistors in pixels of a row and a control signal used to control reset transistors in pixels of another row are identical.

Abstract: An X-ray computed-tomography (CT) apparatus according to an embodiment includes an X-ray tube, a detector, a table top, and processing circuitry. The X-ray tube generates an X-ray. The detector detects the X-ray. On the table top, a subject is placed. The processing circuitry controls a moving mechanism to move the table top in a longitudinal direction. The processing circuitry displays information indicating magnitude of a vibration that occurs, when each position in the longitudinal direction on the table top is moved to a position intersecting a path of the X-ray, at the position.

Abstract: The present specification describes an X-ray detector that includes at least one scintillator screen for absorbing incident X rays and emitting corresponding light rays, a wavelength shifting sheet (WSS) coupled with the at least one scintillator screen for shifting the emitted light rays, at least one wavelength shifting fiber (WSF) coupled with at least one edge of the WSS for collecting the shifted light rays, and a photodetector for detecting the collected light rays.

Abstract: A fluid sensor includes a housing and a thermal emitter in the housing to emit first thermal radiation into a detection volume of the housing at a first power level during a measurement interval and emit the first thermal radiation at a reduced first power level or not emit said first thermal radiation at all during an intermediate interval disposed outside of the measurement interval. The fluid sensor includes a measuring element in the detection volume to receive a radiation signal during the measurement interval. The fluid sensor includes a second thermal emitter in the housing to emit second thermal radiation at a second power level into the detection volume during the intermediate interval such that a thermal oscillation of thermal radiation in relation to an overall power level of the thermal radiation in the detection volume is at most ±50% during the measurement interval and the intermediate interval.

Abstract: The present disclosure provides systems and methods for providing irradiation energy, imaging, and detecting X-ray fluorescence from a volume in a sample. The present disclosure further relates to methods of increasing the delivery of irradiation energy to a target in a sample.

Abstract: An X-ray tube includes a rod-shaped anode which includes a target receiving electrons and generating X-rays and has a main body portion extending in a direction of a tube axis; a vacuum housing which accommodates a distal end side of the anode having the target disposed therein and in which a proximal end side of the anode is fixed by a housing coupling portion; and a cover electrode which is disposed inside the vacuum housing, is coupled to the anode by a cover coupling portion, and surrounds the housing coupling portion. The anode has a third diameter increasing portion protruding from a front surface of the main body portion in a direction intersecting the tube axis. The cover coupling portion is disposed closer to the proximal end side of the anode than the third diameter increasing portion.

Abstract: Disclosed herein is a method, comprising: exposing an image sensor to a scene; measuring, as analog signals, intensities of light from the scene by a plurality of pixels of the image sensor; converting the analog signals to digital signals; and determining a total intensity of light of the scene by calculating a sum of the digital signals.

Abstract: Disclosed herein is a system configured to cause an element in a sample to emit fluorescent X-ray, the system comprising a detector with a plurality of pixels, each pixel configured to count numbers of X-ray photons incident thereon whose energy falls in a plurality of bins of different energy ranges respectively, within a period of time; wherein the detector is configured to sum the numbers counted by all the pixels from only the bins of the same energy range; wherein the detector is configured to identify the element based on the summed numbers.

Abstract: Disclosed herein is a method comprising: obtaining a third image from a first X-ray detector when the first X-ray detector and a second X-ray detector are misaligned; determining, based on a shift between a first image and the third image, a misalignment between the first X-ray detector and the second X-ray detector when the first and second detectors are misaligned; wherein the first image is an image the first X-ray detector should capture if the first and the second detectors are aligned.