Entries |
Document | Title | Date |
20080310597 | Radiation attenuation for a scanning device - A scanning device for providing a radiation scan to an article is disclosed. The scanning device includes a housing, a transport system and a radiation attenuation system. The housing has a entrance port and an exit port and encloses a radiation analysis unit. The transport system is configured to move the article from the entrance port, through the housing and to the exit port. The radiation attenuation system is supported at one of the entrance port and the exit port. The radiation attenuation system includes at least one substantially rigid panel rotatable relative to the housing and a counter balance coupled to the panel to at least partially offset the weight of the panel. | 12-18-2008 |
20090041198 | HIGHLY COLLIMATED AND TEMPORALLY VARIABLE X-RAY BEAMS - Systems and methods for highly collimated and temporally variable X-ray beams. Disclosed herein is a system for producing a collimated X-ray beam, the system including one or more distributed electron sources configured to produce electron beams, one or more X-ray production targets configured to receive the electron beams and to generate X-ray beams at X-ray focal spots, X-ray optics configured to collect the X-ray beams from the X-ray focal spots, wherein the X-rays optics are configured to focus the X-ray beams to a single virtual focal spot, and an X-ray collimator configured to collimate the X-ray beams from the virtual focal spot to generate the collimated X-ray beam. | 02-12-2009 |
20090103685 | X-RAY IMAGING APPARATUS, CONTROL METHOD FOR X-RAY IMAGING APPARATUS, PROGRAM, AND STORAGE MEDIUM - An X-ray imaging apparatus includes an X-ray collimator control unit which controls an X-ray collimator shape, an X-ray irradiation unit which irradiates X-rays in accordance with the X-ray collimator shape, an X-ray imaging unit which receives the irradiated X-rays and acquires a radiograph, a perpendicularity determination unit which determines, on the basis of the comparison between the X-ray collimator shape and the radiograph, whether the X-ray irradiation direction of the X-ray irradiation unit is perpendicular to a light-receiving surface by which the X-ray imaging unit receives the X-rays, and an irradiation control unit which controls X-ray irradiation by the X-ray irradiation unit on the basis of the determination result obtained by the perpendicularity determination unit. | 04-23-2009 |
20090168968 | COLLIMATOR AND METHOD FOR FABRICATING THE SAME - A method for fabricating a collimator assembly is provided. The collimator assembly includes a first collimator grid having a first surface and an opposing second surface, wherein the first collimator grid defines a plurality of cells. Each cell of the plurality of cells is aligned in a first direction and extends between the first surface and the second surface. The method includes coupling a reinforcing layer to the first collimator grid such that the reinforcing layer extends substantially perpendicular to the first direction. | 07-02-2009 |
20090213994 | Computed Tomography Systems and Related Methods Involving Forward Collimation - Computed tomography (CT) systems and related methods involving forward collimation are provided are provided. In this regard, a representative method involving forward collimation of X-rays includes: emitting X-rays from a housing in which an X-ray source is mounted; collimating the X-rays downstream of the housing; and directing the collimated X-rays at a target. | 08-27-2009 |
20090310751 | ADJUSTING POSITIONER FOR RADIATION DEVICE - The present invention relates to an adjusting positioner for a radiation device, comprising: a clamping device detachably connected to the radiation device to clamp said radiation device; a supporter to which said clamping device is connected and a slide path is defined therebetween, wherein the clamping device clamping said radiation device is movable along said slide path in a predetermined direction; and an adjusting device coupled with said clamping device so as to drive said clamping device to move along said slide path. Since the present invention employs above technical solution, it is easy to adjust the position of the radiation device for example, X-ray device, so that the precisely positioning for the radiation device is achieved and a satisfying positioning accuracy is able to obtain. | 12-17-2009 |
20100014642 | COLLIMATOR - The present invention is directed to a collimator that comprises grooves or channels in the submicrometer to micrometer range. The present invention is also related to uses of a collimator and collimator holder as described herein as well as apparatuses comprising the same. | 01-21-2010 |
20100027755 | Radiation Collimator - A radiation collimator for use in either radiation-emitting devices (e.g., radiation therapy) or radiation-sensing imagery devices (i.e., gamma/X-ray cameras) is disclosed. The collimator's interior surface is basically a cylinder or a truncated cone, whereas its exterior shape is generated by the revolution of the graph of a function about the cylinder's symmetry axis, that function being determined such that the attenuation in the center of the sensor is constant as seen from any direction. The collimator is a body of revolution. The said collimator improves collimation and image resolution when compared to cylindrical, pinhole, laminar, or to other art collimators. | 02-04-2010 |
20100158195 | Method for producing a comb-like collimator element for a collimator arrangement and collimator element - A method is disclosed for producing a comb-like collimator element for a collimator arrangement. In at least one embodiment of the method, a collimator sheet extending in a first direction and made of an X-ray absorbing material is used as a support, onto which webs made of an X-ray absorbing material are formed in layers by way of a rapid prototyping technique and protrude transversely in respect of the support in a second direction. | 06-24-2010 |
20100239072 | COLLIMATOR UNIT, RADIATION DETECTING DEVICE, AND RADIODIAGNOSTIC SYSTEM - A pair of holding plates formed with a plurality of grooves each wider than the thickness of each collimator plate are disposed in parallel so that the respective surfaces formed with the grooves confront each other. Urging members are disposed on the holding members. When the urging members slide in the arranged direction of the grooves along the grooves-formed surfaces of the holding members, the urging members urge individual collimator plates inserted in the grooves toward side walls of the grooves. The collimator plates are inserted into the grooves, then the urging members are slid and held in that slide position to urge individual collimator plates into close contact with side walls of the grooves. | 09-23-2010 |
20100254516 | SECONDARY COLLIMATOR AND METHOD OF ASSEMBLING THE SAME - A method for assembling a secondary collimator including a first face plate having a first surface and an opposing second surface is provided. The method includes positioning a lamella assembly on the first face plate, wherein the lamella assembly includes at least one radiation-absorbing material layer and at least one radiation-transmitting material layer, such that a first surface of the lamella assembly is adjacent the second surface of the first face plate. The method also includes coupling a second face plate to the first face plate and the lamella assembly such that a first surface of the second face plate is adjacent a second surface of the lamella assembly. | 10-07-2010 |
20110019801 | METHOD FOR PRODUCING A 2D COLLIMATOR ELEMENT FOR A RADIATION DETECTOR AND 2D COLLIMATOR ELEMENT - A method is disclosed for producing a 2D collimator element for a radiation detector, in which crossing webs made of a radiation-absorbing material are formed, layer-by-layer, by way of a rapid manufacturing technique. In at least one embodiment, the webs are aligned along a φ- and a z-direction and form a cell-shaped structure with laterally enclosed radiation channels, at least in the inner region of the 2D collimator element. In at least one embodiment, the invention moreover relates to a 2D collimator element for a radiation detector that has such a layered construction. This allows the provision of a very precise and rigid collimator arrangement which, at the same time, has a high collimation effect. | 01-27-2011 |
20110051900 | Positioning apparatus for dental x-ray procedures - A dental bite block ( | 03-03-2011 |
20110081004 | SECONDARY COLLIMATOR AND METHOD OF MAKING THE SAME - A method for making a secondary collimator that includes at least one plate having a plurality of slits defined therein includes determining a gap thickness between plate positions of the secondary collimator based on at least one dimension of the at least one plate and fabricating a base plate from a base plate blank. The base plate includes at least two slots being spaced apart by the gap thickness. The at least one plate is inserted into a first slot of the at least two slots to form the secondary collimator. | 04-07-2011 |
20110085644 | Multiconfiguration X-ray Optical System - An x-ray optical system includes an x-ray source which emits x-rays, a first optical element which conditions the x-rays to form two beams and at least a second optical element which further conditions at least one of the two beams from the first optical element. | 04-14-2011 |
20110129069 | COLLIMATOR MODULE FOR THE MODULAR ASSEMBLY OF A COLLIMATOR FOR A RADIATION DETECTOR AND RADIATION DETECTOR - A collimator module is disclosed for the modular assembly of a collimator for a radiation detector with a multiplicity of absorber elements, which are arranged one behind the other in a collimation direction and held by a carrier. In at least one embodiment, the carrier has at least one alignment device for aligning the collimator module in the collimation direction, which alignment device(s) interact with positioning device(s) in a detector mechanism of the radiation detector when they are integrated into the radiation detector. This provides the preconditions for integrating the collimator module in a fashion that is decoupled from a radiation convertor, and so this allows easy assembly of a collimator and adjustment to a position assumed between a radiation convertor and the collimator. Moreover, a radiation detector with such a collimator module is disclosed. | 06-02-2011 |
20110135068 | Integrated Collimator - A radiation detector with an integrated collimator. The collimator may be deposited on an anode or cathode face of the radiation detector. An insulating material may be deposited between the collimator and the radiation detector if the collimator is deposited on the anode side. The collimator may be comprised of a single layer or of multiple layers. Patterning and etching may be used to create an aperture in the collimator to allow x-rays to impinge on a full charge collection region of the radiation detector intrinsic region. | 06-09-2011 |
20120039444 | ELECTRONIC CONICAL COLLIMATOR VERIFICATION - A device for use with a radiation machine includes a first cone collimator, wherein the first cone collimator has a first end for receiving a radiation beam, a collimating portion for changing the radiation beam, and a second end for emitting an output beam, and wherein the first cone collimator is configured to be detachably coupled to a coupling device that has a plurality of moveable switches, and has one or more engaging portions configured to engage with a first subset of the plurality of switches. A method of using a cone collimator includes receiving a portion of a cone collimator, determining a subset of a plurality of switches that is pressed by the cone collimator, and determining an identity of the cone collimator based on the subset of the plurality of switches that is pressed by the cone collimator. | 02-16-2012 |
20120039445 | Modular Fixed Beam-Limiting Device For Intraoral X-Ray System - A modular beam-limiting device for use with an x-ray machine includes a base portion and an attachment portion. The base portion includes at least one magnet. The attachment portion includes at least one magnet. The base portion is adapted to be received on an x-ray tubehead housing. The attachment portion is selectively removably couplable to said base portion. The modular beam-limiting device may further include a magnetic field modulator, which is operable to shape a magnetic field; an insert for configuring a size, a shape, or an orientation of an aperture of the beam-limiting device; or an adapter for increasing an axial length of the beam-limiting device. | 02-16-2012 |
20120134476 | COLLIMATOR FOR X-RAY IMAGING APPARATUS AND THE ASSEMBLE AND DISASSEMBLE METHOD THEREOF - A collimator for X-ray imaging apparatus is provided. The collimator includes a collimator housing including a tube flange, a tube, a locating ring configured to be mounted at an outlet of the tube flange, and at least one tongue set fixed on the locating ring. An outstretching direction of the tongue is towards a center of the locating ring. | 05-31-2012 |
20120140897 | Point-line converter - An X-ray optical configuration for irradiation of a sample ( | 06-07-2012 |
20120163552 | MONOLITHIC CAPILLARY PARALLEL X-RAY LENS - An X-ray lens is provided. The lens is located behind an X-ray tube and a collimator, the collimator located behind the X-ray tube, such that X-rays emitted from the X-ray tube pass through the collimator and then pass through the X-ray lens, wherein the X-ray lens is a monolithic capillary parallel lens configured to transform a cone emanant beam penetrating the collimator into parallel X-rays. | 06-28-2012 |
20130058462 | INDEPENDENTLY ROTATABLE DETECTOR PLATE FOR MEDICAL IMAGING DEVICE - A real-time fluoroscopic imaging system includes a collimator and a detector which are rotationally movable independent of the support assembly, e.g., c-arm, to which they are mounted. Rotational movement of the collimator and the detector are coordinated such that the orientation of the detector with respect to the collimator does not change. The collimator may include a geared flange member to facilitate rotation, and may be a single molded piece formed of a plastic such as tungsten polymer material. The system may also include a plurality of interchangeable collimators characterized by different shapes. A display is provided to present an image to an operator, and image orientation logic displays a target anatomy in a selected orientation regardless of orientation of the target anatomy relative to the detector, and regardless of rotation of the detector. | 03-07-2013 |
20130064353 | Forward- and Variable-offset Hoop for Beam Scanning - An apparatus for forming a beam of energetic particles and for scanning the beam of particles with respect to an inspected object. The apparatus has a source of energetic particles characterized by an effective beam origin and a rotating hoop having at least one aperture, such that the effective beam origin of the source is closer to the inspected object than the axis of rotation of the rotating hoop. A collimating structure disposed interior to the rotating hoop collimates emission by the source into a fan beam prior to impinging on the rotating hoop. In some embodiments, the effective beam origin may be moved with respect to the axis of rotation of the hoop. | 03-14-2013 |
20130064354 | OPTICAL DEVICE FOR ANALYZING A SPECIMEN BY THE SCATTERING OF AN X-RAY BEAM AND ASSOCIATED COLLIMATION DEVICE AND COLLIMATOR - A collimation device for an X-ray beam, an optical device for analyzing a specimen by the scattering of an X-ray beam, and a collimator for an X-ray beam. The collimation device includes an enclosure configured to be under a vacuum or a controlled atmosphere, the enclosure including an inlet and an outlet for the X-ray beam and at least one plate made of a material having a diffracting periodic structure, the plate including two main faces and at least one flared aperture between the faces. | 03-14-2013 |
20130136238 | X-RAY DISTANCE INDICATOR AND RELATED METHODS - Apparatus and methods for providing a distance indication using an x-ray apparatus. According to various embodiments, an x-ray apparatus may be provided comprising an x-ray generator and a visible light generator. The apparatus may further comprise a projection member, such as a reticle, comprising a material at least partially transparent to visible light, wherein the projection member comprises an image positioned within the path of the visible light so as to project a secondary image comprising a shadow defined by the image. A LASER configured to deliver a LASER beam at an angle relative to the visible light may be provided such that the LASER beam intersects at least a portion of the secondary image at a predetermined distance from the LASER to allow a user to determine precisely a distance from the apparatus to an object to be exposed to x-ray radiation. | 05-30-2013 |
20130235981 | COLLIMATOR FOR X-RAY, GAMMA, OR PARTICLE RADIATION - A collimator for x-ray, gamma, or particle radiation has a plurality of collimator elements made of a tungsten-containing material to reduce scattered radiation. At least one collimator element consists of a tungsten alloy having a tungsten content of 72 to 98 wt.-%, which contains 1 to 14 wt.-% of at least one metal of the group Mo, Ta, Nb and 1 to 14 wt.-% of at least one metal of the group Fe, Ni, Co, Cu. The collimator also has very homogeneous absorption behavior at very thin wall thicknesses of the collimator elements. | 09-12-2013 |
20130243164 | X-RAY OPTICAL APPARATUS AND ADJUSTING METHOD THEREOF - The present invention provides a method of adjusting an X-ray optical apparatus which includes: an X-ray source; and a reflective structure where at least three reflective substrate arranged with an interval and X-rays which are incident into a plurality of passages whose both sides are put between the reflective substrates are reflected and parallelized by the reflective substrate at both sides of each passage to be emitted from the passage. When one edge of the reflective structure is an inlet of the X-ray and the other edge is an outlet of the X-ray, a pitch of the reflective substrates at the outlet side is larger than a pitch at the inlet side. The method comprises adjusting the relative positions of the X-ray source and the reflective structure so as to reduce a penumbra amount formed by the X-ray emitted from each of the passages. | 09-19-2013 |
20130322603 | COLLIMATOR PLATE, COLLIMATOR MODULE, RADIATION DETECTING DEVICE, RADIOGRAPHY APPARATUS AND ASSEMBLING METHOD OF COLLIMATOR MODULE - A method is provided for assembling a collimator module including a plurality of first collimator plates arrayed in a first direction, each first collimator plate having a plurality of slots formed on a plate surface, and a plurality of second collimator plates arrayed in a second direction orthogonal to the first direction, wherein each second collimator plate penetrates respective slots along the first direction so as to form a lattice-shape. The method includes positioning the plurality of first collimator plates by moving a first collimator plate in one direction along the second direction, so that a side wall of a first cutout formed on an edge of a radiation incident side or a radiation output side of the first collimator plate contacts a member extending in the first direction. | 12-05-2013 |
20140016756 | Cargo Scanning System - The present application is directed to a portable inspection system for generating an image representation of target objects using a radiation source. A detector array having a first configuration and a second configuration is connected to a housing and at least one source of radiation. The radiation source is capable of being transported to a site by a vehicle and of being positioned separate from the housing. The radiation source is housed in a radiation source box and movable within the radiation source box using an actuator. The actuator is operably connected to the radiation source and provides a translational energy that moves the radiation source between an operational position and a stowed position. | 01-16-2014 |
20140037069 | FAIL-SAFE RADIATION CONCEALMENT MECHANISMS FOR IMAGING CAPSULES - An imaging capsule with a fail-safe radiation mechanism includes a first rotatable disk with a radiation source mounted thereon and having a collimator structure allowing emission of radiation from radiation source from a few locations on the first disk. A second rotatable disk surrounds the first disk, is rotatable relative to first disk, and includes areas that block radiation and areas that are transparent to emission of radiation. In a rest position, second disk is situated relative to first disk such that areas that block radiation are blocking the emission of radiation from the locations on the circumference of the disk that allow the emission of radiation. A motor is activated to rotate one of the disks and allow emission of radiation. A connector is configured to automatically return first disk and second disk to the rest position when the motor is deactivated. | 02-06-2014 |
20140064457 | X-RAY COLLIMATOR - Disclosed is a system for attenuating x-rays. The disclosed devise utilizes a copper barrier having a minimum total thickness of at least 0.12 mm. The device can be utilized as part of a collimator and/or as part of a masking wall. | 03-06-2014 |
20140146948 | CT COLLIMATOR AND CT SYSTEM INCLUDING THE CT COLLIMATOR - A CT collimator comprising a rotating slot part on a rotation shaft and having a plurality of blades, each blade has a slot of a different width and a radiation beam entering the collimator can only pass via a slot in one of the blades, each edge of each blade slot along a longitudinal direction has a convex curved surface structure, and in a vertical plane along a longitudinal direction, two side edges of the slot are curved, and each blade is arranged to be eccentric to the center of the rotation shaft. A CT system using the CT collimator, the detection area of the radiation rays projected to the radiation detector via the CT collimator can be maintained unchanged by adjusting the rotation angle of the blade, under the circumstance where the focus of the radiation source shifts during a CT scan. | 05-29-2014 |
20140161234 | ALIGNMENT SYSTEM - Disclosed is an alignment indication system for an X-ray to align a sensor with X-rays emitted from a collimator that includes a conductive surface and two contacts that abut the conductive surface when an alignment ring holding the sensor is properly aligned with the collimator to activate an indicator such as a light when the sensor is properly aligned. | 06-12-2014 |
20140362978 | COLLIMATOR PLATE, COLLIMATOR MODULE, RADIATION DETECTING DEVICE, RADIOGRAPHY APPARATUS AND ASSEMBLING METHOD OF COLLIMATOR MODULE - A method is provided for assembling a collimator module including a plurality of first collimator plates arrayed in a first direction, each first collimator plate having a plurality of slots formed on a plate surface, and a plurality of second collimator plates arrayed in a second direction orthogonal to the first direction, wherein each second collimator plate penetrates respective slots along the first direction so as to form a lattice-shape. The method includes positioning the plurality of first collimator plates by moving a first collimator plate in one direction along the second direction, so that a side wall of a first cutout formed on an edge of a radiation incident side or a radiation output side of the first collimator plate contacts a member extending in the first direction. | 12-11-2014 |
20150071411 | X-RAY COLLIMATOR FOR CT SYSTEM - An X-ray collimator used in a CT system is provided, including: a first guide rail and a second guide rail disposed in parallel with each other; and a first gate assembling unit and a second gate assembling unit disposed in parallel with each other. The first gate assembling unit has one end provided with a driving mechanism and fixedly connected with the first guide rail, and another end connected with the second guide rail in a slidable connection. The second gate assembling unit has one end provided with a driving mechanism and fixedly connected with the second guide rail, and another end connected with the first guide rail in a slidable connection. And blocks for supporting and position limiting are provided on two ends of the first guide rail and two ends of the second guide rail. Sheltering effect on X-rays may be improved. | 03-12-2015 |
20150380121 | HIGH ENERGY RADIATION DETECTING APPARATUS AND METHOD - A detection apparatus for detecting high energy radiation, preferably for detecting gamma radiation, coming from a source of high energy radiation in a detection volume, e.g. from one or more particles emitting high energy radiation. The apparatus comprises at least one detection surface configured to convert incident high energy radiation into a detection signal, and a collimator system comprising at least three collimator slits. Each collimator slit is arranged to project high energy radiation coming from a respective slit field of view of said detection volume onto said detection surface. At least two of said collimator slits extend in non-parallel directions and the respective slit fields of view of said at least two non-parallel collimator slits and the slit field of view of any other of said at least three collimator slits overlap and define a common detection volume of the detection apparatus. | 12-31-2015 |
20160078972 | METHOD FOR MANUFACTURING A COLLIMATOR MODULE AND METHOD FOR MANUFACTURING A COLLIMATOR BRIDGE AS WELL AS COLLIMATOR MODULE, COLLIMATOR BRIDGE, COLLIMATOR AND TOMOGRAPHY DEVICE - A method for manufacturing a collimator module and/or a collimator bridge is disclosed, as well as a collimator module, a collimator bridge, a collimator and a tomography device. A collimator module for a radiation detector includes a plurality of collimator layers. These collimator layers each have a flat lattice structure. In an embodiment, a first collimator layer has a holder structure and the collimator layers are aligned relative to one another by the holder structure on a first holder tool. With such a holder structure it is possible to glue the aligned collimator layers to one another such that the glued collimator layers form the collimator module with absorber walls disposed in a lattice shape. In such cases, the collimator layers can be aligned to one another in an especially simple and yet precise manner. Through this the actual lattice shape corresponds especially accurately to a prespecified lattice shape. | 03-17-2016 |
20160187502 | X-RAY BEAM INTENSITY MONITORING DEVICE AND X-RAY INSPECTION SYSTEM - The present invention discloses an X-ray beam intensity monitoring device and an X-ray inspection system. The X-ray beam intensity monitoring device comprises an intensity detecting module and a data processing module, wherein the intensity detecting module is adopted to be irradiated by the X-ray beam and send a detecting signal, the data processing module is coupled with the intensity detecting module to receive the detecting signal and output an X-ray beam intensity monitoring signal, wherein the X-ray beam intensity monitoring signal includes a dose monitoring signal of the X-ray beam and a brightness correction signal of the X-ray beam. The X-ray beam intensity monitoring device can simultaneously perform dose monitoring and brightness monitoring, thereby improving the service efficiency of the X-ray beam intensity monitoring device. Moreover, the monitoring result of the X-ray beam intensity can be more accurate and reliable. | 06-30-2016 |
20160189818 | X-RAY IMAGING SYSTEM AND METHOD WITH A REAL-TIME CONTROLLABLE 3D X-RAY ATTENUATOR - An X-ray imaging system including an X-ray source, an X-ray collimator, a real-time controllable 3D X-ray attenuator, a digital X-ray detector, and a system controller coupled to the X-ray radiation source, the collimator, the real-time controllable 3D X-ray attenuator, and the digital X-ray detector for controlling the real-time controllable 3D X-ray attenuator to reduce X-ray radiation dose and improve image quality. The real-time controllable 3D X-ray attenuator includes a top panel, a bottom panel, at least one sidewall joining the top panel to the bottom panel, an open area between the top panel, bottom panel, and at least one 2D pixel array coupled to at least one of the top panel and the bottom panel, the at least one 2D pixel array having a plurality of pixels of thin film electric coils and switching thin film field-effect transistors, wherein the open area is at least partially filled with a mixture of ferromagnetic material and medium X-ray attenuation material. | 06-30-2016 |