Abstract: An X-ray fluorescence spectrometer includes: a sample stage; an X-ray tube that radiates excitation X-rays toward the sample stage; a detector that detects fluorescent X-rays emitted from a sample on the sample stage; and a control device that controls the X-ray tube and the detector. Assuming that an intensity of X-rays that are part of the fluorescent X-rays, of a material of an X-ray tube target, emitted from the X-ray tube and are Rayleigh scattered by the sample placed on the sample stage is defined as IR and that an intensity of X-rays that are Compton scattered is defined as IC, when the control device creates a calibration curve by irradiating the standard sample with the excitation X-rays from the X-ray tube and when a value of IR/IC obtained for the standard sample is out of a reference range, the control device issues a warning.

Abstract: One or more example embodiments provides a method for establishing compensation information to compensate for a bending of a couch of an object table, in particular patient table, of a computed tomography facility under the weight of an object to be recorded, in particular of a patient, wherein a target region image dataset of a target region of the examination object is recorded with the computed tomography facility at a recording position of the couch, wherein at least one marker visible in x-ray imaging is provided on or in the couch and a three-dimensional reference dataset of the marker is provided for a non-loaded couch, wherein the compensation information is established from a comparison between the reference dataset and the target region image dataset.

Abstract: A downhole system may include a downhole tubular having a body portion formed between a central bore and a radially outer surface of the downhole tubular, a neutron generator housed within the body portion and configured to emit neutrons, and a gamma ray detector housed within the body portion and configured to detect gamma rays formed via interactions between the emitted neutrons and a downhole formation. The downhole system may also include a sleeve disposed about the radially outer surface of the downhole tubular. The sleeve may be axially positioned over at least a portion of the gamma ray detector. Additionally, the downhole system may include a thermal neutron absorption layer disposed between a radially outer surface of the sleeve and the gamma ray detector.

Abstract: Described is a scintigraphic intracavitary measurement device (100) comprising a supporting rod (10) extending along a main direction of extension (X) and a measuring head (20) coupled or integrated with a first end (10a) of said supporting rod (10). The measuring head (20) comprises at least one collimation element (30) configured to filter gamma radiation emitted by a source (S) defined by a suitably energised body tissue and a scintillation unit (40) configured to detect the gamma radiation emitted by the body tissue and filtered by the collimation element (30). The measuring head (20) is configured to operate with variable investigation areas (A).

Abstract: A method is provided for multi-energy X-ray imaging of a field of view in order to display a contrast material, located in the field of view, having an atomic number of at least 65, (e.g., at least 73), and/or a k-edge of at least 60 keV. In the method, two image datasets having different X-ray spectra are recorded and are combined in order to ascertain display information of the contrast material, wherein the X-ray spectra are generated by using at least one spectrally acting filter, starting from a source spectrum of an X-ray source in such a way that the value of their differential spectrum has a maximum, which includes a range, beginning at the k-edge of the contrast material, of higher absorption by the contrast material.

Abstract: A method of adjusting components in an imaging apparatus includes obtaining a first image, the first image being acquired by performing a scan using a first set of scan parameters; analyzing the first image to detect objects in the first image and corresponding features of the detected objects; based on a detection result of a first object having a corresponding first object feature in the first image, determining an action corresponding to the first object and the first object feature; determining an updated set of scan parameters based on the determined action; and controlling the imaging apparatus based on the updated set of scan parameters.

Abstract: X-ray devices and systems are described in this application. In particular, this application describes x-ray devices and systems that are used for three-dimensional (3D) image reconstruction with uncertain geometry. The x-ray imaging system contains an arm configured to be moved around an object to be imaged, a light weight, low power x-ray source attached to the arm, an x-ray detector configured to move complimentary to the x-ray source to capture multiple two-dimensional (2D) images in a solid angle path outside of a planar arc, 3D position and orientation tracking device(s) configured to capture the geometric position and orientation of the x-ray source and detector when each 2D projection image is captured, and a processor configured to construct a three dimensional (3D) image from the multiple 2D images using a reconstruction algorithm.

Abstract: A correction apparatus reduces time and labor, reduces an artificiality, and improves reproducibility of correction by correcting a shift of a profile with an automatically estimated correction amount. A correction apparatus for correcting a profile of X-ray powder diffraction comprises processing circuitry configured to set a reference profile, set an estimation method for estimating a correction amount related to a sample height, estimate the correction amount based on the estimation method, and correct a subject profile based on the correction amount, wherein the correction amount is a value that maximizes a degree of coincidence between the corrected subject profile and the reference profile.

Abstract: A radiographic imaging apparatus according to the present invention includes an orientation measurement unit configured to measure information about an orientation of the radiographic imaging apparatus, wherein the orientation measurement unit performs correction of an output value of the orientation measurement unit based on an operation of radiographic imaging.

Abstract: An analytical biochip includes a substrate, a lower cladding layer, a waveguide, an upper cladding layer, an emission light collection element and a plurality of nanowells. The lower cladding layer is over the substrate. The waveguide is over the lower cladding layer. The upper cladding layer is over the waveguide. The emission light collection element is over the upper cladding layer, wherein the emission light collection element includes lower protrusion structures extending into the upper cladding layer, and the emission light collection element is made of metal. The nanowells penetrate the emission light collection element and are in the upper cladding layer.

Abstract: An active mass damper system includes one or more sensors configured to detect motion of a C-arm and output corresponding motion data representative of the motion of the C-arm. A mass damper assembly within the C-arm includes a linear motor, and a mass coupled to the linear motor. The active mass damper system further includes a controller configured to receive the motion data, process the motion data by applying one or more filters to the motion data to create filtered motion data, and control the linear motor, based on the filtered motion data and motor control tuning parameters, to move the mass in a linear reciprocating path to provide a force having a magnitude and a phase configured to dampen at least a portion of the movement of the C-arm.

Abstract: An improved remote insect detector is disclosed. The detector includes a housing. The detector further includes an insect funnel passage located on an underside of the housing and dimensioned to retain a target insect in a detecting position and an optical beam detection circuit operable to detect the target insect in the detecting position.

Abstract: Exemplary systems, method and compute-accessible medium can be provided, e.g., for a visual stimulation or an optogenetic activation during a scan of at an object. For example, it is possible to utilize a controller which can be configured to receive signal information regarding the scan, and to precisely control a light engine. The exemplary control of the light engine can be used to activate and deactivate a light source or a plurality of light sources (e.g., one or more at least one light emitting diodes). using the signal information. For example, a digital micromirror device can be utilized through which the light engine is precisely controlled for a full field projection, or patterned projection, wherein the light engine can comprise up to eight high power light sources.

Abstract: A radiographic imaging apparatus of the present disclosure includes an image outputter outputting a first radiographic image included in continuous radiographic images obtained by radiographic imaging of a subject, an image brightness information extractor obtaining brightness information from the first radiographic image, a first irradiation condition calculator determining a first irradiation condition based on the brightness information, an irradiation controller controlling a radiation dose based on the first irradiation condition, a second irradiation condition calculator determining a second irradiation condition based on a second radiographic image generated based on the first irradiation condition when an imaging site of the subject is fixed, and a dose reducer reducing or maintaining the radiation dose based on the second irradiation condition.

Abstract: Concentrations of individual hydrocarbons in a gas mixture are determined by measuring absorbance of mid-infrared radiation at specific wavelengths. Computation enables determination of concentrations of individual hydrocarbons despite overlaps of absorption bands.

Abstract: Three dimensional X-ray imaging systems are described in this application. In particular, this application describes a 3D dental intra-oral imaging (3DIO) system and associated methods using a series of 2D image projections. The methods include making a 3D image of an object by providing an X-ray source on a first side of a object to be imaged, positioning a substantially stationary X-ray detector on an opposite side of the object from the X-ray source, moving the X-ray source in a circular motion to multiple positions on the first side of the object, collecting multiple two dimensional (2D) images of the object in less than about 10 seconds when the X-ray source is located in the multiple positions, and reconstructing a three-dimensional (3D) image using the multiple 2D images. In some methods, 15 to 100 2D images of the object can be collected by pulsing the X-ray source for about 5 ms to about 40 ms per image in each of the multiple positions.

Abstract: A method for evaluating a multiphase oilfield fluid includes blending a first sample of the fluid with a viscosity modifying agent to transform the sample into a paste; making a first XRF measurement of the paste to estimate an elemental composition of the fluid; making a calcimetry measurement of a second sample of the fluid to estimate a total carbonate concentration of the fluid and to obtain an acidified second sample; separating the acidified second sample to obtain an acidified brine; making a second XRF measurement of the acidified brine to estimate an elemental composition of the acidified brine; and determining an elemental composition of a solid phase of the multiphase oilfield fluid from the elemental composition of the acidified brine and the elemental composition of the multiphase oilfield fluid.

Abstract: A mammography apparatus including: an imaging table that has a placement surface on which a breast is placed; a protective cover that includes a first magnetic object at a predetermined first position and is mounted on the placement surface; and a sample tray that includes a second magnetic object and a housing part of a sample and is placed on the placement surface via the protective cover, the second magnetic object being attracted to the first magnetic object by a magnetic force, wherein the sample tray is configured to be magnetically attached to the predetermined first position of the protective cover by the first magnetic object and the second magnetic object.

Abstract: A radiation source includes a radiation tube having a cathode which is a cold cathode. An imaging control unit directs the radiation source to intermittently and alternately emit the first radiation having a first energy distribution and the second radiation having a second energy distribution different from the first energy distribution whenever a rotation mechanism rotates the radiation source and a radiation detector by a preset angle. The imaging control unit directs the radiation detector to output a first projection image based on the first radiation and a second projection image based on the second radiation which are obtained by the intermittent emission of the first radiation and the second radiation. An image processing unit generates a tomographic image on the basis of the first projection image and the second projection image.

Abstract: The present invention relates to assisting scapula positioning in chest X-ray imaging. Provided is a system and related method for assisting subject positioning in chest X-ray imaging, wherein the system comprises an optical detection device (110), a user interface (130), and a processor (120), connected to the optical detection device (110) and the user interface (130). Thereby, the processor (120) is configured to receive an optical image signal of a rear view of the subject(S), determine a current positioning of a scapula of the subject(S) based on the optical image signal, wherein the current positioning of the scapula is assessed as to whether and/or to which extent it would overlap or would not overlap a lung field of the subject to be imaged and determine a feedback for positioning the subject(S) and/or its scapula based on the determined current positioning of the scapula. The user interface (130) is configured to provide the feedback for positioning the subject.