X-ray or gamma ray systems or devices inventions 01/06

20060018423 - Imaging tomography apparatus with two acquisition systems, and method for determining their system angles: In a tomography apparatus and operating method, at least two acquisition systems are respectively each disposed in the azimuthal direction at respective specific system angles around a common rotation axis. Both system angles can be determined for a substantially constant rotation angle speed of the two acquisition systems on the...

20060018424 - Method for detecting and visualizing dynamic processes in an object volume: A method is disclosed for a multislice computer assisted tomograph, capable of carrying out a spiral scan of an object volume with a pitch p selected to be small enough that each slice of the object volume is multiply detected during the spiral scan. The method includes calculating, using measured...

20060018425 - X-ray computed tomography apparatus: A plurality of region-specific areas are set on a scanogram, and an image SD value is set for each region-specific area. A tube current calculating unit calculates a tube current value at each position on the basis of a tube current pattern in a tube current pattern storage unit, an...

20060018426 - Imaging tomography apparatus with two acquisition systems in different planes and method for determining position correction values for the planes: In a tomography apparatus and method for obtaining correction values for two measurement planes, wherein the tomography apparatus an acquisition system disposed in a first measurement plane and a second acquisition system disposed in a second measurement plane that are disposed in the azimuthal direction around a common rotation axis,...

20060018427 - X-ray detector and computed tomography unit having such an x-ray detector: An X-ray detector is configured in such a way that, with reference to its longitudinal axis which runs at least substantially parallel to the rotation axis of the computed tomography unit, it has a larger extent in the direction of its longitudinal axis in at least one area than in...

20060018428 - Double-radiant-source framework for container detecting system: A double-radiant-source framework used for a container detecting system, which belongs to the technical field of radiation detection, having a horizontal accelerator, a vertical accelerator and a gantry tower composed of a left vertical girder, a right vertical girder, an upper cross girder, and a lower cross girder. A horizontal...

20060018429 - Optical device for x-ray applications: The invention relates to an optical device intended to treat an incident X-ray beam. The optical device comprises a monochromator and an optical element for conditioning the incident beam. The reflective surface of the optical element is able to produce a two-dimensional optical effect in order to adapt a beam...

20060018430 - Active dose reduction device and method: An active dose radiation device and method decreases the amount of x-rays which may be generated by an x-ray tube following termination of the x-ray exposure. One component of the x-ray system is connected to the device which has a plurality of electronic cells that can be overvoltaged from a...

20060018431 - X-ray imaging apparatus: 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...

20060018432 - Large-area individually addressable multi-beam x-ray system and method of forming same: A structure to generate x-rays has a plurality of stationary and individually electrically addressable field emissive electron sources with a substrate composed of a field emissive material, such as carbon nanotubes. Electrically switching the field emissive electron sources at a predetermined frequency field emits electrons in a programmable sequence toward...

20060018433 - Bearing temperature and focal spot position controlled anode for a ct system: An anode assembly (50) includes a thermally conductive bearing encasement (52) covering a portion of a bearing (64). An anode (56) rotates on the bearing (64) and has a target (58) with an associated focal spot (60). The thermally conductive bearing encasement (52) is configured and expansion limited to prevent...

20060018434 - Radiography by selective detection of scatter field velocity components: A reconfigurable collimated radiation detector, system and related method includes at least one collimated radiation detector. The detector has an adjustable collimator assembly including at least one feature, such as a fin, optically coupled thereto. Adjustments to the adjustable collimator selects particular directions of travel of scattered radiation emitted from...

20060018435 - Computed tomography dose indexing phantom selection for dose reporting: A computed tomography assembly is providing including an x-ray gantry assembly, an x-ray source projecting a beam of x-rays, a detector assembly positioned opposite the x-ray source and receiving the beam of x-rays, and a control mechanism in communication with the x-ray source and the detector assembly. The control mechanism...

20060018436 - Intraoral dental radiology positioning device for use with aiming ring: A receptor positioning device for taking dental bitewing radiographs of a patient's teeth comprises a receptor holding member adapted to receive a receptor for exposing x-radiation from the x-ray machine and a collimation plate having a substantially flat surface for aligning with an x-ray machine. The collimation plate has a...

20060018437 - Tomography apparatus with gantry-carried component mounted to withstand centrifugal forces: The gantry of a tomography apparatus has a drum that is rotatable around an axis. The drum carries at least one component mounted thereon. The component is mounted on the drum by a mounting arrangement that resolves a centrifugal force acting on the component into a radial force vector and...

20060018438 - System and method for alignment of an object in a medical imaging device: Systems and methods for alignment in a medical imaging device are provided. An alignment system includes a source of visible light and a reflector. The source of visible light is configured to project a beam of visible light within a field of view of the medical imaging device, and the...

20060018439 - Method and apparatus for 3d reconstruction of images: A method for producing an image of an object includes scanning an object with an imaging apparatus to collect projection data of the object utilizing cone sampling. The projection data is rebinned in a row-wise, fan-to-parallel fashion to produce rebinned data and the rebinned data is view-weighted to produce view-weighted...

20060013354 - Method for reconstructing tomograms from detector measured data of a tomography unit: A reconstruction method is used in computed tomography, wherein an examination object is scanned with a beam that rotates during scanning about a system axis. In the method, firstly the absorption coefficients of subvolumes relatively remote from the system axis are determined. Subsequently the absorption coefficients of the subvolumes situated...

20060013355 - Method for the reconstruction of sectional images from detector measurement data of a tomography device: A method includes dividing a scanning volume into a multiplicity of partial volumes. For each partial volume, a reference beam is sought, which intersects the partial volume and which is at the greatest distance from the system axis. Further, the absorption coefficients of each partial volume are calculated exclusively with...

20060013353 - System, method, and computer program product that corrects measured data: An x-ray computed tomography system, method, and computer product that generates an x-ray beam with an x-ray generator and detects with an x-ray detector at least one characteristic of the x-ray beam generated by the x-ray generator, after the x-ray beam has passed through an object, the system including a...

20060013356 - Method for determination of the position and/or orientation of three-dimensional structures of a patient with the aid of a computed tomography scanner: A method is for determination of at least one of the position and orientation of three-dimensional structures of a patient. One topographic scan of the patient is recorded simultaneously per tube detector combination with the aid of a computed tomography scanner which has at least two tube detector combinations arranged...

20060013357 - Methods and apparatus for 3d reconstruction in helical cone beam volumetric ct: A method for reconstructing an image of an object utilizing a cone-beam volumetric computed tomographic imaging apparatus includes helically scanning the object with a radiation source utilizing the cone-beam volumetric computed tomographic imaging apparatus; selecting radiation beams emitted by the radiation source passing through a pixel P having a smallest...

20060013358 - Scan program communication method and x-ray ct apparatus: An X-ray CT apparatus includes a host and a scanner that executes a scan based on a scan program communicated from the host by means of communicating means. The X-ray CT apparatus also includes a communicating means which collectively communicate the calculated values of X-ray applied amounts at every scan...

20060013359 - Method for correcting detector signals of a unit for reconstructing tomograms from projection data: A method is proposed for correcting detector signals of a unit for reconstructing tomograms from projection data, in particular of a computer tomography unit, of a ray detector having a multiplicity of individual detector channels that form the projection data, attenuation values of individual X-rays being calculated after the passage...

20060013360 - High speed materials sorting using x-ray fluorescence: A system and process for classifying a piece of material of unknown composition at high speeds, where the system connected to a power supply. The piece is irradiated with first x-rays from an x-ray source, causing the piece to fluoresce x-rays. The fluoresced x-rays are detected with an x-ray detector,...

20060013361 - Method for measurement of the three-dimensional density distribution in bones: A method for promoting weight loss and/or lowering blood glucose comprises an active material which may be cinnamon, an extract of cinnamon, or a derivative of a cinnamon extract. The active material may be utilized in combination with further active ingredients....

20060013362 - Method and apparatus for x-ray reflectance measurement: In a method for X-ray reflectance measurement in which an intensity of a reflected X-ray is observed for each incident angle, a measuring scale for the incident angle ω is corrected with high accuracy with the use of an analyzer crystal. The corrective operation for the measuring scale is carried...

20060013363 - X-ray apparatus for generating short x-ray pulses, and inspecting device operating by means of such an x-ray apparatus: An invention related to an X-ray device for the generation of brief X-ray pulses comprising an X-ray tube having a thermionic cathode and an anode and an X-ray generator having a first circuit for the generation of a high-voltage pulse which is applied to the anode for the generation of...

20060013364 - Rotating anode x-ray tube and x-ray generator: A coolant passage is formed inside the rotary shaft while an air passage is formed inside the casing. A mechanical seal is arranged between the coolant passage and the air passage. Leakage cooling water, which has leaked in the form of vapor from the mechanical seal, is relegated radially outwardly...

20060013365 - Method and apparatus for supporting a dental x-ray sensor: There is disclosed a method and apparatus for positioning an electronic dental X-ray sensor in a dental patient's mouth comprising the steps of: selecting a film positioner having an easel supported on a formed rod; assembling the electronic sensor to the film positioner to form a sensor assembly; covering the...

20060008046 - Device and method for x-ray scatter correction in computer tomography: A device (1) for computer tomography, which is set up for x-ray scatter correction, features an evaluation unit (17) which evaluates values stored as a table in a data memory for x-ray scatter correction, which have been determined in advance with the aid of a Monte Carlo simulation which take...

20060008047 - Computed tomography system for imaging of human and small animal: Computed tomography device comprising an x-ray source and an x-ray detecting unit. The x-ray source comprises a cathode with a plurality of individually programmable electron emitting units that each emit an electron upon an application of an electric field, an anode target that emits an x-ray upon impact by the...

20060008048 - X-ray computer tomography apparatus: An X-ray computer tomography apparatus includes an X-ray tube, an X-ray detector, a data collection apparatus that collects X-ray signals from the X-ray detector repeatedly, a shutter mechanism that is arranged between the X-ray tube and a subject in order to convert an X-ray into a pulse-like X-ray and is...

20060008049 - X-ray-tomographic imaging apparatus, x-ray-tomographic imaging method, and program: An X-ray-tomographic imaging apparatus for obtaining image data on a predetermined tomographic section of a subject with efficiency and effectiveness by using a plurality of X-ray projection images achieved by a plurality of X-rays that is made incident on the tomographic section from different directions is provided. The X-ray-tomographic imaging...

20060008050 - Dental and orthopedic densitometry modeling system and method: A dental or orthopedic densitometry modeling system includes a computer with a digital memory adapted for storing patient densitometry information, an input and an output. A dental or orthopedic input device includes energy source and an energy sensor, both of which can be either external or intraoral to the patient....

20060008051 - Detection methods and system using sequenced technologies: Methods and systems for interconnecting sub-systems and for identifying combinations of multiple technologies. The method of this invention can be applied to detecting the presence of a characteristic in an object....

20060008052 - Non-intrusive inspection systems for large container screening and inspection: Non-intrusive inspection systems, including apparatuses and methods, for non-intrusively inspecting cargo containers employed, generally, in the cargo transportation industry. The non intrusive inspection systems utilize one or more, single or multi-energy electron accelerators arranged in a plurality of different arrangements and orientations to provide two and, essentially, three dimensional views...

20060008053 - X-ray tube operating state acquiring device, x-ray tube operating state acquiring system, and x-ray tube operating state acquiring method: An X-ray tube controller measures operation information (filament power supply time in an X-ray tube and a grid voltage value applied to grid electrodes to maintain the tube current value under a predetermined tube voltage). The information is transmitted to an X-ray tube operation information acquiring unit via a communication...

20060008054 - Radiographic image capturing system and radiographic image capturing method: A radiographing system for radiographing an object, has a radiation generator to irradiate radiation to an object, and a radiographic image detector to detect a radiographic image of the object. Each of the radiation generator and the radiographic image detector comprises a respective radio section to transmit and receive information...

20060008055 - Insulation methods and arrangements for an x-ray generator: Methods and arrangements for providing insulation in an X-ray generator are provided. The method includes providing an insulation member having a conductive element electrically coupled to a component within an X-ray system. The insulation member is located at a distance from the component with a thermal transfer fluid between the...

20060008056 - System and method for providing sealing arrangement in x-ray tube: A system and method for providing a sealing arrangement in an X-ray tube are provided. The X-ray tube includes a rotating portion having a plurality of ball bearings and a liquid metal within a housing having the ball bearings therein. The rotating portion is configured to rotate an anode. The...

20060008057 - Structure and method for shielding radiation in an x-ray generator: A structure for shielding radiation in an X-ray generator comprises at least one first layer constructed of a first substance and at least one second layer constructed of a second substance wherein the first substance comprises substantial thermal transfer property and the second layer comprises substantial radiation shielding property. A...

20060002504 - System and method for boundary estimation using ct metrology: A technique is provided for CT reconstruction for use in CT metrology. The boundary based CT reconstruction method includes the steps of initializing a boundary of an object to obtain a boundary estimate, defining a forward model based on the boundary estimate, linearizing the forward model to obtain a system...

20060002505 - X-ray ct scanner: An X-ray CT scanner includes an X-ray tube which irradiates an object, a variable X-ray limiting device which limits the X-ray beam thickness, an X-ray detector which detects X rays transmitted through the object and has a plurality of detecting elements arrayed in a matrix manner, a storing unit which...

20060002506 - Volumetric computed tomography (vct): The present invention provides a volumetric computed tomography (VCT) system capable of producing data for reconstructing an entire three-dimensional (3D) image of a subject during a single rotation without suffering from cone beam artifacts. The VCT system comprises an array of source positions distributed along a line parallel to an...

20060002507 - Method and system for three-dimensional reconstruction of images: A method and system for three-dimensional reconstruction of images are provided. The method includes receiving projection data from an imaging device scanning an object, identifying projection data corresponding to a conjugate pair of projection rays, and interpolating the projection data corresponding to the conjugate pair of projection rays to reconstruct...

20060002508 - X-ray ct apparatus: An X-ray CT apparatus that includes a multidetector wherein a scintillator unfractionated by reflectors or slits or the like is laminated on an upper surface of a photodiode array comprising photodiodes two-dimensionally arranged in channel and slice directions, a DAS which acquires signals delivered from the photodiodes, and a signal...

20060002509 - Method and apparatus for direct reconstuction in tomosynthesis imaging: A technique for directly reconstructing three-dimensional images acquired in tomosynthesis imaging is provided. The method allows for pre-processing a set of projection images based upon the acquisition geometry prior to direct reconstruction of the projection images. Furthermore, the technique allows for post-processing the reconstructed image data as desired to improve...

20060002510 - Inspection method and system for and method of producing component mounting substrate: On a production line for component mounting substrate, mutually communicating inspection apparatus are each provided to a different one of production processes that are carried out sequentially such as the solder printing, component mounting and soldering processes. Each inspection apparatus can generate an X-ray transmission image of the substrate. Each...

20060002511 - Modular patient support system: A radiation treatment system (100) for accurately delivering radiation to a targeted site within a cancer patient (108) that includes a modular patient support system and a patient positioner (114). The modular patient support system includes a modularly expandable patient pod (200) and at least one immobilization device, such as,...

20060002512 - X-ray reflector exhibiting taper, method of making same, narrow band x-ray filters including same, devices including such filters, multispectral x-ray production via unispectral filter, and multispectral x-ray production via multispectral filter: An x-ray reflector may include: a substrate; a first layer formed on the substrate, the first layer including a relatively higher-Z material, where Z represents the atomic number; and a second layer formed on the first layer, the second layer including a relatively lower-Z material; at least one of the...

20060002513 - Method and device for user-specific parameterization of an x-ray device: A method and a suitable x-ray device (1) for carrying out the method are specified for effective and operationally simplified user-specific optimization of a parameter configuration (K) of an x-ray device (1), said configuration comprising at least one recording parameter (U,I,t,F). It is accordingly provided that a user (20) is...

20060002514 - Electron emitter assembly and method for generating electron beams: An electron emitter assembly and a method for generating electron beams are provided. The electron emitter assembly includes a light source configured to emit light. The electron emitter assembly further includes a photo-responsive device operably coupled to an electron emitter device. The photo-responsive device induces the electron emitter device to...

20060002515 - System for forming x-rays and method for using same: A system and method for forming x-rays. One exemplary system includes a target and electron emission subsystem with a plurality of electron sources. Each of the plurality of electron sources is configured to generate a plurality of discrete spots on the target from which x-rays are emitted. Another exemplary system...

20060002516 - X-ray tube: The invention improves an insulating performance of an X-ray tube without increasing an insulation size. An X-ray tube in accordance with the invention keeps a mechanical strength of a glass insulation material and improves an insulation withstand voltage by a concavity and convexity, by forming a concavity and convexity having...

20060002517 - Optimized x-ray tube cooling device: A cooling system to cool the x-ray tube of a CT imaging system. The heat exchanger has a curved sector shape which provides a larger surface area for heat dissipation within the cover of the gantry. The axis of the cooling fans is preferably parallel to the rotational axis of...

20060002519 - Radiation isocenter measurement devices and methods and 3-d radiation isocenter visualization systems and related methods: A three-dimensional phantom assembly for use with a radiation treatment device includes a three-dimensional support member having at least two, spaced apart opposed surfaces configured to hold at least one generally planar radiation sensitive dosimeter sheet such that the dosimeter sheet generally conforms to a shape defined by the two...

20060002518 - Systems and methods for creating stable camera optics: In some preferred embodiments, a medical imaging system having stable camera optics is provided that includes: a photon emitting source that emits photons towards a plurality of photon receivers; an optical interface between said photon emitting source and said plurality of photon receivers including an optical coupling gel that is...