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Backscatter energy analysis for classification of materials based on positional non-commutativity

Patent Number: 8442186
Publication Date: 2013-05-14
Inventors: ;

A system and methods for characterizing regions within, or on, an inspected object, wherein a lower-Z scattering material and a higher-Z material may both lie along a common line of sight. The inspected object is scanned with penetrating radiation characterized by an energy distribution, and penetrating radiation scattered by the inspected object is detected in a manner that generates two detector signals that distinguish between materials of higher and lower effective atomic number under ...

Orthovoltage radiosurgery

Patent Number: 8442185
Publication Date: 2013-05-14
Inventors: ; ; ;

A radiosurgery system is described that delivers a therapeutic dose of radiation to a target structure in a patient. In some embodiments, inflammatory ocular disorders are treated, specifically macular degeneration. In some embodiments, ocular structures are placed in a global coordinate system, based on ocular imaging, which leads to direction of an automated positioning system. In some embodiments, the position of an ocular structure is tracked and related to a radiosurgery system. In ...

Spectral CT

Patent Number: 8442184
Publication Date: 2013-05-14
Inventors: ; ; ; ;

An imaging system includes a radiation source (106, T1, T2, T3) that rotates about an examination region and emits radiation that traverses the examination region. The radiation source (106, T1, T2, T3) emits radiation having an energy spectrum that is selectively alternately switched between at least two different energy spectra during an imaging procedure. The system further includes an energy-resolving detector array (116, ...

Remotely-aligned arcuate detector array for high energy X-ray imaging

Patent Number: 8439565
Publication Date: 2013-05-14
Inventors: ; ; ; ; ; ;

A scanning system and methods for inspecting contents of a container. High-energy penetrating radiation collimated into a fan beam illuminates an inspected container from one side, while a plurality of detector plates are disposed on the opposite side of the container. Each detector plate has a plurality of detector modules, each of which, in turn, is disposed on a remotely activated alignment and has multiple detector elements. A controller governs the orientation of each of the plurality ...

Fluoroscopy operator protection device

Patent Number: 8439564
Publication Date: 2013-05-14
Inventors: ;

A radiation protection device attaches to the C-arm of a fluoroscope and shields and collimates the X-ray beam between the X-ray source and the patient and between the patient and the image intensifier. One embodiment has a radiation shield of X-ray opaque material that surrounds the C-arm of the fluoroscopy system, the X-ray source and the image intensifier. A padded slot fits around the patient's body. Another embodiment has conical or cylindrical radiation shields that extend between the ...

X-ray shutter arrangement

Patent Number: 8437451
Publication Date: 2013-05-07
Inventors: ;

A shutter arrangement for an X-ray housing includes a shutter 10 for example of solid tantalum. In embodiments, the shutter has a through hole 22 and slides between a closed and an open position on the inner face of the X-ray housing, in the open position the through hole 22 aligns with an opening 8 in the ...

Fast measurement of X-ray diffraction from tilted layers

Patent Number: 8437450
Publication Date: 2013-05-07
Inventors: ; ; ; ; ; ;

A method for analysis includes directing a converging beam of X-rays toward a surface of a sample having multiple single-crystal layers, including at least a first layer and a second layer that is formed over and tilted relative to the first layer. The X-rays that are diffracted from each of the first and second layers are sensed simultaneously while resolving the sensed X-rays as a function of angle so as to generate a diffraction spectrum including at least a first diffraction peak due to ...

Dynamic/adaptive treatment planning for radiation therapy

Patent Number: 8437449
Publication Date: 2013-05-07
Inventors: ; ;

A facility for facilitating custom radiation treatment planning is described. During a distinguished radiation treatment session for a patient, the facility collects data indicating positioning of a predefined treatment site of the patient relative to a target treatment location throughout the distinguished radiation treatment session. The facility associates the collected positioning data with data describing one or more other aspects of the distinguished radiation treatment session. The ...

Systems and methods for using an intensity-modulated X-ray source

Patent Number: 8437448
Publication Date: 2013-05-07
Inventors: ; ; ;

The present application is directed toward an X-ray scanning system having a plurality of detectors and a controller, where a) the controller is configured to receive and identify a minimum X-ray transmission level detected by at least one detector, b) the controller compares the minimum X-ray transmission level to at least one predetermined threshold transmission level, and c) based on said comparison, the controller generates an adjustment signal. The present application further comprises ...

Laminography system

Patent Number: 8437447
Publication Date: 2013-05-07
Inventor:

A laminography system includes a first linear guide defining a z-direction of a Cartesian coordinate system and an imaging radiation source fixable to the first linear guide and movable along the first linear guide. The radiation source is configured to form a cone of rays including a central ray defining a y-axis of the Cartesian coordinate system. A detector is disposed in a position so as to be struck at a center thereof by the central ray of the radiation source substantially in an ...

Lighting apparatus for a C-arm X-ray machine

Patent Number: 8434942
Publication Date: 2013-05-07
Inventor:

A lighting apparatus for a C-arm X-ray apparatus is disclosed. The lighting apparatus comprises a housing that surrounds an X-ray receiving element of the X-ray fluoroscope and does not cover a receiving face of the X-ray receiving element. The lighting apparatus further comprises at least one light-emitting element positioned within the housing so as to surround the X-ray receiving element, the at least one light-emitting element being configured for emitting visible light downwards ...

Gamma-ray microscopy methods

Patent Number: 8433039
Publication Date: 2013-04-30
Inventor:

This invention teaches a method of performing gamma-ray microscopy and how to build a gamma-ray microscope. While the beam of gamma rays can not be manipulated like a beam of light or a beam of electrons, magnification is possible using a single-point source of gamma radiation. With this design, gamma rays originate from a tiny point in space and radiate outward as they travel away from the source. This results in magnification when a sample is placed between this single-point source and a ...

Actual skin input dose rate computing device and method and X-ray machine

Patent Number: 8433038
Publication Date: 2013-04-30
Inventor:

An actual skin input dose rate computing device includes a distance sensor disposed in a direction directly opposite to said subject and close to the center of an X-ray beam but not within said X-ray beam and an angle sensor disposed at said X-ray source as well as a computing ...

X-ray radar

Patent Number: 8433037
Publication Date: 2013-04-30
Inventor:

A technique for generating three-dimensional information using radio frequency modulated X-rays includes both a method and an apparatus. In a first aspect, the method includes modulating an X-ray signal with first and second radio frequencies; transmitting the modulated X-ray signal; receiving backscatter; and processing the received backscatter to range a target in the field of view. In another aspect, an apparatus includes a transmitter and a receiver. The transmitter is capable of: ...

Scanning systems

Patent Number: 8433036
Publication Date: 2013-04-30
Inventor:

The invention provides methods, systems and detector arrangements for scanning an object moving in a first direction that includes the steps of irradiating the object with radiation having a peak energy of at least 900 keV, providing a first detector region having a thickness of at least 2 mm and a second detector region having a thickness of at least 5 mm where the second detector region is arranged to receive radiation that has passed through the first detector region, and detecting the ...

X-ray fluorescence analyzing method

Patent Number: 8433035
Publication Date: 2013-04-30
Inventor:

An X-ray fluorescence analyzing method includes irradiating a liquid sample (3A) containing hydrogen and at least one element of carbon, oxygen and nitrogen with primary X-rays (2); measuring the intensity F of fluorescent X-rays (4) from each of elements in the sample (3A) and having the atomic number 9 to 20, and the intensity S of scattered X-rays (12) from the sample (3A) caused by continuous X-rays in the primary X-rays; and calculating the ...

Localization of an element of interest by XRF analysis of different inspection volumes

Patent Number: 8433034
Publication Date: 2013-04-30
Inventor:

An apparatus and method are disclosed for localizing an element of interest in a sample by comparing XRF spectra acquired from at least two distinct but overlapping inspection volumes. The inspection volumes are varied by changing the geometry of the exciting x-ray and/or fluoresced x-ray beam(s), which may be accomplished by repositioning multi-apertured collimators. Comparison of the XRF spectra acquired from different inspection volumes provides an indication as to whether the element of ...

Panoramic imaging apparatus

Patent Number: 8433033
Publication Date: 2013-04-30
Inventors: ;

A panoramic imaging apparatus is provided, which is able to freely display a focus-optimized internal structural image of the tooth row depending on a position using image data acquired by only one-time X-ray panoramic imaging from an arbitrary section along a patient's tooth row.

The panoramic imaging apparatus comprise an X-ray source (31) and a detector (32) outputting a digital electrical signal depending on an incident X-ray at a constant frame rate. This apparatus ...

Arrangement and method in digital mammography imaging

Patent Number: 8433032
Publication Date: 2013-04-30
Inventor:

The invention relates to an arrangement and method in digital mammography imaging especially for use for imaging of small breasts. In the invention, a so-called full-field sensor and an upper compression plate substantially equal in width with this sensor are used. According to the invention, the beam is limited to a width narrower than the width of the sensor and the compression plate and directed for oblique imaging non-centrally relative to the center of said sensor and the upper ...

X-ray CT apparatus

Patent Number: 8433031
Publication Date: 2013-04-30
Inventor:

An X-ray CT apparatus includes a first setting device configured to set on a scout image of a subject, a reconstruction range of a tilt image based on a desired tilt angle such that the tilt image includes a region of interest of the subject, a second setting device configured to set on the scout image a range as a scan range for a non-tilt scan, the range being placed on an inner side of a scan range necessary to reconstruct the tilt image with respect to all scan spaces in the ...

X-ray device having head stabilizing member

Patent Number: 8430565
Publication Date: 2013-04-30
Inventor:

An X-ray device includes a rotating unit that rotates an X-ray emitter and an opposing X-ray receiver about a patient's head. X-rays are emitted by the X-ray emitter and received by the X-ray receiver via the patient's head. An upper shelf supports the rotating unit. A head stabilizing member stabilizes the patient's head. The stabilizing member extends from a location adjacent to the rotating unit and above the X-ray emitter and X-ray receiver to a location wherein the patient's head is ...

Sliding counterbalanced C-arm positioning devices and methods for using such devices

Patent Number: 8430564
Publication Date: 2013-04-30
Inventors: ;

Systems and methods for making and using sliding counterbalanced C-arm positioning devices are described. In such systems and methods, each C-arm positioning device includes a C-arm X-ray device, a linear bearing rail, a linear bearing block, and a counterbalance mechanism. Generally, the C-arm is connected to the linear bearing block, which, in turn, is slidably coupled to the bearing rail to allow the bearing block and C-arm to slide up and down on the rail. The counterbalance mechanism ...

Dental fluoroscopic imaging system

Patent Number: 8430563
Publication Date: 2013-04-30
Inventor:

The dental fluoroscopic imaging system includes a flat panel detector comprised by a gamma-rays or x-rays converter, a plate, a collector, a processing unit and a transmitter suitable for 2D intraoral/extraoral and 3D extraoral dental fluoroscopy. The x-ray converter contains a material capable of transforming the low dose gamma rays or x-rays beam received from an emitter after going through the dental examination area into electrical signals or a light image consequent with the ...

X-ray tube target and method of repairing a damaged x-ray tube target

Patent Number: 8428222
Publication Date: 2013-04-23
Inventors: ;

An x-ray tube target and method of repairing a damaged x-ray tube target. The x-ray tube target includes an original substrate and a portion of the original substrate that includes a new portion of a substrate and a new target track that is attached to a void in the original substrate. The method includes removal and replacement of damaged materials on used anode targets of x-ray tubes, thereby enabling recovery of used anode targets without the use of expensive and time consuming layer ...

Medical x-ray acquisition system

Patent Number: 8428221
Publication Date: 2013-04-23
Inventors: ;

A medical x-ray acquisition system has an x-ray source and an x-ray detector, the x-ray source having at least one field emission radiator with at least one field emission cathode. The field emission cathode can be formed by a nanostructured material with carbon ...

Dynamical visualization of coronary vessels and myocardial perfusion information

Patent Number: 8428220
Publication Date: 2013-04-23
Inventors: ; ; ; ;

A method for dynamically visualizing coronary information and an apparatus adapted to implement such method is described. In a preferred embodiment of the method, first dynamic cardiac data is acquired during a first cardiac stage and second dynamic cardiac data is acquired during a second cardiac stage. Then, the two data sets are visualized continuously the in a superimposed presentation, wherein the first cardiac data and the second cardiac data corresponding to a same phase within the ...

Radiation therapy device

Patent Number: 8428219
Publication Date: 2013-04-23
Inventor:

A radiation therapy device having a therapeutic radiation source and an imaging unit is provided. The imaging unit includes a plurality of diagnostic radiation sources, from which diagnostic X-ray radiation are directed onto an object to be examined, and a diagnostic radiation detector, with which the diagnostic X-ray radiation is detected after passing through the object to be examined. The plurality of diagnostic radiation sources are X-ray radiation sources that are based on carbon ...

Dynamic tumor radiation treatment apparatus and program

Patent Number: 8428218
Publication Date: 2013-04-23
Inventors: ;

A dynamic tumor radiation treatment program for causing a computer to function. The program includes detecting an annihilation gamma ray with a gamma ray detector, storing the threshold of counting rate in a displacement threshold memory, computing the counting rate according to the detection signal of an annihilation gamma ray with a gamma ray counting rate computer, comparing the counting rate of annihilation gamma rays acquired from the gamma ray counting rate computer with the threshold ...

Methods and systems for rapid detection of concealed objects

Patent Number: 8428217
Publication Date: 2013-04-23
Inventor:

This specification is directed towards finding, locating, and confirming threat items and substances. The inspection system is designed to detect objects that are made from, but not limited to, special nuclear materials (“SNM”) and/or high atomic number materials. The system employs a dual energy CT scanning first stage inspection system and advanced image processing techniques to analyze images of an object under inspection (“OUI”), which includes, but is not limited to baggage, ...

Method for reconstruction of a three-dimensional image data set and x-ray device

Patent Number: 8428216
Publication Date: 2013-04-23
Inventors: ;

A method for reconstruction of a three-dimensional image data set from projection images of an object captured with an X-ray device from different projection angles is proposed. At least one sub-area of the object is outside the coverage of the X-ray device, or as a result of strong attenuation by a metal so that no projection data is present in the sub-area. Filter lines are determined n the projection images. A first local transformation is performed along the filter lines on the ...