Abstract: Portable x-ray devices and methods for using such devices are described. The devices have an x-ray tube powered by an integrated power system. The x-ray tube is shielded with a low-density insulating material containing a high-Z substance. The devices can also have an integrated display component. With these components, the size and weight of the x-ray devices can be reduced and the portability of the devices enhanced. The x-ray devices also have an x-ray detecting means that is not structurally attached to the device and therefore is free standing. Consequently, the x-ray devices can also be used as a digital x-ray camera. The portable x-ray devices are especially useful for applications where portability is an important feature such as in field work, remote operations, and mobile operations such as nursing homes, home healthcare, or teaching classrooms.

Abstract: The present invention describes the use of red, green and, if necessary, blue dopants dispersed in a universal host material as the active emitting layer in OLEDs. The universal host is transparent in the visible region, and may be emissive in the blue region when used as the blue emitting species or possesses carrier transport properties. By dispersing the dopants in the universal host, efficient energy transfer from host to guest and/or direct carrier recombination on the dopant takes place resulting in bright red, green or blue emission, depending on the dopant. The resulting spectra are characteristic of the guest molecules.

Abstract: In an expansion device for an x-ray apparatus, in particular with a rotary piston x-ray tube with a sealed coolant and/or insulation volume under a minimum pressure and pressing with this minimum pressure against an elastic pressure element, an elastic pressure element with a linear force-displacement characteristic curve (in particular in the form of a gas pressure spring with a linear elastic characteristic curve) is provided to prevent an excessive pressure load given a temperature rise.

Abstract: To simplify the reconstruction of structural data of an object (7) examined using a tomography device (1), it is proposed to implement a radiation source (4) in such a way that radiation bundles (6) with parallel beam geometry are produced.

Abstract: A field emission display device includes three parts: a cathode emitter unit, an electron amplification unit, and a faceplate unit. The primary emission of electrons emitted from the cathode emitter unit bombards an electrode layer that includes an electron amplification material in order to generate secondary emissions of electrons. The secondary emissions of electrons bombard a light-emitting layer of the faceplate unit to generate fluorescence. Then, the fluorescence is transmitted through a transparent faceplate for viewing.

Abstract: A system according to some embodiments may include a treatment head to emit treatment radiation, a gantry coupled to the treatment head, an x-ray tube to emit imaging radiation, an imaging device to acquire an image based on the imaging radiation, and a support. The support may be coupled to the x-ray tube and to the imaging device, and movably coupled to the gantry for movement independent of gantry.

Abstract: One pixel is divided into a first region including a first light emitting element and a second region including a second light emitting element, wherein the first region emits light in one direction and the second region emits light in the direction opposite to that of the first region. Independently driving the first light emitting element and the second light emitting element allows images to be displayed independently on the surface.

Abstract: A photonic assisted emitter including an at least partially transparent electron source layer, a thin metal layer; and a tunneling layer disposed between said at least partially transparent electron source layer and said thin metal layer.

Abstract: A table control method for controlling a tabletop driven out of a base in the horizontal direction, wherein deflection of a tip of the tabletop due to load is compensated by tilting the tabletop to lift the tip.

Abstract: An analytical method for determining crystallographic phases of a measuring sample comprises the steps of acquiring a diffraction pattern of the measuring sample and qualitative phase analysis of the measured diffraction pattern, acquiring an element spectrum of the measuring sample and determining concentrations of chemical elements in the measuring sample from the acquired element spectrum, and carrying out a quantitative phase analysis of the measuring sample on the basis of the measured intensities of the acquired diffraction pattern thereby taking into consideration determined element concentrations as a boundary condition, wherein differences between calculated and measured intensities of the diffraction pattern and between calculated and determined element concentrations are simultaneously minimized in an iterative process. The inventive method permits quantitative phase determination with high reliability.

Abstract: An electroluminescence display device including a substrate, a corrugated structure formed on the substrate, wherein the corrugated structure disperses light through diffraction and reflection; and a first electrode layer, a first insulation layer, a fluorescent layer, a second insulation layer, and a second electrode layer sequentially formed on the substrate to follow the shape of the corrugated structure.

Abstract: An X-ray imaging apparatus includes a body unit including a bed unit where an object is put, an X-ray irradiation unit configured to irradiate an X-ray to the object and an X-ray detector configured to detect the X-ray passing through the object, an input unit configured to input control information to control at least part of operation of the body unit, a selection unit configured to select ON or OFF of a lock mode and a controller configured to determine at least part of the control information is locked when the lock mode is ON and the at least part of the control information is released when the lock mode is OFF.

Abstract: A scanning-based arrangement for obtaining imaging data of an object at high repetition rate comprises a support structure; scanning-based apparatuses fixedly arranged on the support structure and each including (i) a radiation source, and (ii) a radiation detector comprising a stack of line detectors, each being directed towards the radiation source to allow a ray bundle of radiation to enter the line detector; an object table arranged in the radiation path of one of the scanning-based apparatuses; and a device provided for rotating the support structure relative the object table so that the object table will successively be arranged in the radiation path of each of the scanning-based apparatuses, during which rotation each of the line detectors in each of the radiation detectors is adapted to record a plurality of line images of radiation as transmitted through the object.

Abstract: A method for the rectification of an X-ray picture (2a, 2b) of an item of luggage (2) during luggage screening with the following steps: recording the X-ray picture (2a, 2b) of the item of luggage (2) by means of a X-ray radioscopy device (11, 11a); geometric rescaling (7) of the X-ray picture (2a, 2b) whilst taking into consideration only the geometric data of the mapping geometry of the X-ray radioscopy device (11, 11a) and also the image data of the recording of the X-ray picture (2a, 2b) of the item of luggage (2), the beam path (10) being tracked for each detector element onto a respective preset plane; transmission of the rescaled, de-skewed X-ray picture (8a, 8b) to a display or image-processing apparatus (9).

Abstract: A transfer film comprising a base film (11), a parting-agent layer (12), a protective film (13), and a metal film (14), the latter three being formed on the base film (11) in order, wherein the protective film (13) contains a softening agent such as a phosphate, an aliphatic monobasic acid ester, an aliphatic dibasic acid ester, or a dihydric alcohol ester. By using such a transfer film, a metal back layer is formed. Since the transfer layer of the transfer film has a surface resistivity of as high as 102–108 ?/, the surface resistivity of the formed metal back layer is high, and discharge is suppressed.

Abstract: An x-ray CT system performs a scan by acquiring projection views from which an image is reconstructed. In a prospective embodiment, the correlation of adjacent views is calculated as the scan is performed and is used to detect subject motion as the scan is being performed. In a retrospective embodiment, the correlation of adjacent views is calculated and is used to detect subject motion after the scan is completed. In the first embodiment substitute projection views are acquired by continuing the scan and in the second embodiment redundant projection views acquired during the scan are substituted until the best possible image is produced.

Abstract: A miniaturized X-ray source is disclosed. It comprises an anode structure (43) and a cathode structure (41), each having an essentially pointed portion (44, 42), wherein at least the pointed portions being directed towards each other and enclosed in a vacuum cavity (49). The anode structure has an essentially dome shaped structure having a first essentially flat part (46) surrounded by a second essentially flat part (48), connected by a wall section (47), such that said first and second parts are located at different levels. The pointed portion is provided on said first flat portion and having an extension such that the apex of said pointed portion does not extend beyond the level of said second essentially flat part. A method of making an X-ray source is also disclosed.

Abstract: A system for obtaining coordinate data of a source and detector instrument are described. The system includes a marker assembly having a plurality of markers with a particular geometry, and an energy source for targeting the plurality of markers with energy packets. The system further includes a detector for detecting energy packets after the plurality of markers have interacted therewith, and an image device for forming image data of the plurality of markers from the energy packets detected by the detector. A calibration module for utilizes the particular geometry of the plurality of markers and the image data to non-iteratively determine coordinate data.

Abstract: Disclosed herein are multilayer polymer-quantum dot light emitting diodes (PQD-LEDs) and methods of making thereof. As disclosed, the PQD-LEDs comprise at least one quantum dot layer made from an aqueous suspension of quantum dots upon which a polymer layer is deposited by spin coating methods known in the art. The quantum dot layers and the polymer layers are discrete and distinct from one another. Also disclosed are methods of making the PQD-LEDs of the present invention and kits.

Abstract: An X-ray irradiation apparatus includes an enclosure and an X-ray beam system positioned within the enclosure for directing X-ray beams into an irradiation region. The X-ray beam system has more than one X-ray beam emitter for directing the X-ray beams into the irradiation region from different directions. Each X-ray beam emitter includes a vacuum chamber having a target window and an electron generator positioned within the vacuum chamber for generating electrons that are directed at the target window for forming X-rays which pass through the target window as an X-ray beam. The target window is supported by a support plate having a series of holes therethrough which allow passage of the electrons therethrough to reach the target window.