46 results about "Radiographic Exam" patented technology

A system and method for high-speed radiographic inspection of fluid transport vessels in which a radiation source and a radiation detector are positioned on opposite sides of the outside surface of the vessel. A positioning system is provided for moving and locating the radiation source and radiation detector longitudinally with respect to the vessel and for moving the radiation source and radiation detector circumferentially with respect to the vessel. In operation, the positioning system causes the radiation source and radiation detector to spiral along the vessel in a coordinated manner while the radiation source illuminates an adjacent region of the vessel with radiation. The radiation is converted into corresponding electrical signals used to generate images of objects in the radiation path. Finally, an operator inspects the images for defects.

A non-destructive inspection, testing and evaluation system and process is provided for the review of aircraft components. The system provides for a structure configured to contain an inspection and testing apparatus and the aircraft components under inspection. The structure is lined with shielding to attenuate the emission of radiation to the outside of the structure and has corbels therein to support the components that constitute the inspection and testing apparatus. The inspection and testing apparatus is coupled to the structure, resulting in the formation of a gantry for supporting a carriage and a mast is mounted on the carriage. The inspection and testing equipment is mounted on the mast which forms, in part, at least one radiographic inspection robot capable of precise positioning over large ranges of motion. The carriage is coupled to the mast for supporting and allowing translation of the equipment mounted on the mast. The mast is configured to provide yaw movement to the equipment.

A system and method for automatic digital radiographic inspection of piping in which a radiation source and radiation detector are mounted on an inner carriage that rotates concentrically inside an outer carriage and both carriages are placed externally to the piping during operation. A rotating system is provided to cause the inner carriage to rotate completely around the piping. A positioning system is provided for moving the outer carriage longitudinally on the piping. A balancing system is provided such that any tilting of the system during its longitudinal movement on the piping is corrected. In operation, the system is placed on the piping and the rotating system causes the inner carriage to rotate around the piping. After one complete rotation is ensured the positioning system moves the assembly in a longitudinal direction on the piping. A controller controls the rotating; positioning and balancing systems in a coordinated manner to move the outer carriage after the inner carriage has made one complete rotation of the piping. The radiation detector receives the data signals form the radiation source and these signals are used to generate images of the piping for inspection of defects.

An apparatus for radiographic examination includes a detection unit including a detector configured to detect a gamma ray emitted from a radioactive isotope in an object and to output a detected signal, a first measurement unit configured to determine a first crossing time at which a pulse height of the detected signal becomes substantially equal to a first threshold value, a second measurement unit configured to determine a second crossing time at which the pulse height of the detected signal becomes substantially equal to a second threshold value, and an incidence time calculation unit configured to calculate a starting time of the detected signal based on the first crossing time and the second crossing time and to output detection data; and an information processing unit configured to determine distribution of radioactive isotopes in the object based on multiple sets of said detection data.

A method of operating a radiographic inspection system is disclosed for a system in which a conveyor chain with identical modular chain segments transports articles under inspection. Two operating modes of the radiographic inspection system includes a calibration mode in which calibration data characterizing the radiographic inspection system with an empty conveyor chain are generated; and an inspection mode in which raw image data of articles under inspection with the background of the conveyor chain are acquired and arithmetically processed with calibration data into a clearer output image, without the interfering background of the conveyor chain.

Diagnosis device for combined and/or combinable radiographic and nuclear medical examinations Digital imaging methods have now become common practice in medical diagnostics. Methods of this type have been used for some time, e.g. in computer tomography, for magnetic resonance examinations, ultrasound examinations and for nuclear medical methods.

The object underlying the invention is to propose a diagnosis device for increasing accessibility to a patient. To this end, a diagnosis device (1) is proposed for combined and/or combinable radiographic and nuclear medical examinations with an x-ray source (9), with an examination room for accommodating a patient (5), with a gamma radiation source (6) arranged in the body, with the diagnosis device (1) being designed in order to carry out the radiographic examination by evaluating the measurement of the x-rays, and in order to carry out a single photon emission (SPE) examination as a nuclear medical examination by evaluating the gamma radiation, with a detector system (8a,b, 10) which has a detector surface for simultaneously measuring the x-ray and gamma radiation without changing the patient's position and/or which is designed to record a two-dimensional locally-resolved and object-imaging individual x-ray projection image.

A radiographic inspection method of irradiating a circuit forming device with X-rays to inspect the inside of the device. The method includes an X-ray irradiation step of irradiating the circuit forming device with X-rays, an X-ray detection step of detecting X-rays having penetrated the circuit forming device which is rotated every predetermined degrees of angle about an axis intersecting the irradiation direction of X-rays at right angles, a tomogram creating step of creating a plurality of tomograms based on data on penetrated X-rays detected in the X-ray detection step, a projected image creating step of creating projected images in three axial directions intersecting at right angles based on the plurality of tomograms created in the tomogram creating step, and a defect detecting step of detecting a defect such as a crack of the circuit forming device based on the projected images created in the projected image creating step.

In a radiographic inspection device which can shorten the inspection time and which can enhance the spatial resolution of thus obtained image, has two first and second radiation detecting devices each of which comprises several radiation detectors, a collimator device and a collimator moving device. The collimator device incorporates grid-like shield members defining several gamma ray passages. Each of the gamma ray passages has a cross-sectional area which is greater than that of each of the radiation detectors. The collimator device in the first radiation detecting device is moved in the longitudinal direction through the rotation of a motor in the collimator moving device while the collimator device in the second radiation detecting device is moved in a direction orthogonal to the longitudinal direction through a motor in the collimator moving device. Since the cross-sectional area of the gamma ray passage is greater than that of the radiation detector, the sensitivity of detection of gamma rays as to the radiation detector is enhanced, thereby it is possible to greatly shorten the inspection time. Further, since the collimator devices are moved by the collimator moving devices, respectively, the spatial resolution by the tomogram can be enhance.

Disclosed are a head fixing device, which is applied to an X-ray imaging system having an X-ray generator and an X-ray detector for photographing an image of a head and supports a head of an examinee such that the head of the examinee is maintained at a photographing position in an aligned state, and an X-ray imaging system using the same. Here, the head fixing device supports the occipital region and the temporal region of the examinee, thereby aligning the head of the examinee in the photographing position and maintaining the position of the head. The head fixing device comprises: an occipital region support (occipital support portion) for supporting the back of the head to block movement toward the rear side of the head, and a temporal region support (temporal support portion) for blocking left/right movement of the head, wherein the temporal region support may be provided in the occipital region support or may be separated from the occipital region support. In general radiographic inspection and dental radiographic inspection, the present invention can effectively fix the position of the head and ensure a stable position, thereby minimizing the probability of or preventing the generation of an error during radiography and obtaining an image having a high diagnostic value.

An intra-oral sensor protection device in accordance with the present invention facilitates the comfort of the patient during radiology examination, while protecting sensitive and relatively delicate digital sensors from damage during the examination. Features of the present invention address protection of the sensor during intra-oral manipulation and placement of the sensor during examination, providing a fluid barrier, and variable positioning features, all while facilitating the ease of use of the sensor in radiographic examination in preparation for, during and after the exam. The intra-oral sensor protection device has two sensor protection elements that are releasably retained in either open or closed configurations to provide a protective casing for a sensor. Features are provided to accommodate for either wired or wireless sensor communication and may have sensor protection connection elements that provide for a fluid barrier when each sensor protection element is retained in a closed configuration. A sensor may be releasably retained within an interior of the two sensor protection elements, the sensor in preferred embodiments being retained within the two sensor protection elements. The present invention relates and is directed to apparatus and methods of dentistry and dental examination. The present invention also provides processes and methods directed to one or more aspects of intra-oral radiological dental examination.

The present invention is a method of positioning a horse's foot for radiographic examination which includes attaching to the hoof of the lower limb to be X-rayed a radiolucent pad, and necessary height extension plates, all having the shape of the hoof's footprint in order to elevate the hoof to a level above the standing surface that will position the area of X-ray interest appropriately with the beam of the X-ray collimator. In addition, it is necessary to place a platform of the same or similar height as the pad and its height extensions beneath of the hoof of the opposite foot. The apparatus for attaching the pad to the horse's hoof preferably comprises a pair of overlapping elastic straps.

The invention includes compositions that are useful for improving contrast in radiographic images. In certain embodiments, the compositions of the invention may be used in cementitious materials, thus allowing the analysis of grouts located around tendons and tendon anchorage regions around steel post-tensioning strands. The invention further includes methods of performing radiographic inspection using the compositions of the invention.

The present invention relates to the field of radiographic examination and radioactive material inspection, and provides a system and a method capable of simultaneous radiographic examination and radioactive material inspection. The system comprises a radiographic examination system and a radiation monitor; wherein the radiographic examination system comprises an accelerator and a synchronization controller, and the radiation monitor comprises a detector, a front end circuit, a signal transmission controller, a data collecting, analyzing and processing computer, an alarm device and so on. The present invention combines the radiographic examination system and the radiation monitor tightly so that the radioactive material inspection can be executed while the radiographic examination is performed, thereby the examination efficiency is improved and the occupied area of the system is reduced.