Abstract: The system for determining and imaging wax deposition and corrosion in pipelines relate to systems for determining wax deposition and corrosion by one or both of two techniques. In both techniques, a source of neutron radiation is directed at the pipeline. In one technique, a neutron detector surrounded by an absorption shield defining a collimation window counts neutrons reflected back to the detector by back diffusion or backscatter radiation. In the other technique, a gamma ray detector measures gamma rays emitted when the emitted neutrons are absorbed in the pipeline. A neutron moderator-reflector is placed around three sides of the pipeline to increase the likelihood of neutron capture. A gamma detector surrounded by a gamma absorption shield defining a collimation window counts neutron capture gamma rays. An energy window can be taken for selection of Fe and H gamma rays for high precision imaging.

Abstract: The system for determining and imaging wax deposition and corrosion in pipelines relate to systems for determining wax deposition and corrosion by one or both of two techniques. In both techniques, a source of neutron radiation is directed at the pipeline. In one technique, a neutron detector surrounded by an absorption shield defining a collimation window counts neutrons reflected back to the detector by back diffusion or backscatter radiation. In the other technique, a gamma ray detector measures gamma rays emitted when the emitted neutrons are absorbed in the pipeline. A neutron moderator-reflector is placed around three sides of the pipeline to increase the likelihood of neutron capture. A gamma detector surrounded by a gamma absorption shield defining a collimation window counts neutron capture gamma rays. An energy window can be taken for selection of Fe and H gamma rays for high precision imaging.

Abstract: The system for determining and imaging wax deposition and corrosion in pipelines relate to systems for determining wax deposition and corrosion by one or both of two techniques. In both techniques, a source of neutron radiation is directed at the pipeline. In one technique, a neutron detector surrounded by an absorption shield defining a collimation window counts neutrons reflected back to the detector by back diffusion or backscatter radiation. In the other technique, a gamma ray detector measures gamma rays emitted when the emitted neutrons are absorbed in the pipeline. A neutron moderator-reflector is placed around three sides of the pipeline to increase the likelihood of neutron capture. A gamma detector surrounded by a gamma absorption shield defining a collimation window counts neutron capture gamma rays. An energy window can be taken for selection of Fe and H gamma rays for high precision imaging.

Abstract: The system for determining and imaging wax deposition and corrosion in pipelines relate to systems for determining wax deposition and corrosion by one or both of two techniques. In both techniques, a source of neutron radiation is directed at the pipeline. In one technique, a neutron detector surrounded by an absorption shield defining a collimation window counts neutrons reflected back to the detector by back diffusion or backscatter radiation. In the other technique, a gamma ray detector measures gamma rays emitted when the emitted neutrons are absorbed in the pipeline. A neutron moderator-reflector is placed around three sides of the pipeline to increase the likelihood of neutron capture. A gamma detector surrounded by a gamma absorption shield defining a collimation window counts neutron capture gamma rays. An energy window can be taken for selection of Fe and H gamma rays for high precision imaging.

Abstract: The systems for determining and imaging wax deposition and simultaneous corrosion and wax deposit determination in pipelines relate to systems for determining wax deposition and corrosion by one or both of two techniques. In both techniques, a source of neutron radiation is directed at the pipeline. In one technique, a neutron detector surrounded by an absorption shield defining a collimation window counts neutrons reflected back to the detector by back diffusion or backscatter radiation. In the other technique, a gamma ray detector measures gamma rays emitted when the emitted neutrons are absorbed in the pipeline. A neutron moderator-reflector is placed around three sides of the pipeline to increase the likelihood of neutron capture.

Abstract: The systems for determining and imaging wax deposition and simultaneous corrosion and wax deposit determination in pipelines relate to systems for determining wax deposition and corrosion by one or both of two techniques. In both techniques, a source of neutron radiation is directed at the pipeline. In one technique, a neutron detector surrounded by an absorption shield defining a collimation window counts neutrons reflected back to the detector by back diffusion or backscatter radiation. In the other technique, a gamma ray detector measures gamma rays emitted when the emitted neutrons are absorbed in the pipeline. A neutron moderator-reflector is placed around three sides of the pipeline to increase the likelihood of neutron capture.

Abstract: The systems for determining and imaging wax deposition and simultaneous corrosion and wax deposit determination in pipelines relate to systems for determining wax deposition and corrosion by one or both of two techniques. In both techniques, a source of neutron radiation is directed at the pipeline. In one technique, a neutron detector surrounded by an absorption shield defining a collimation window counts neutrons reflected back to the detector by back diffusion or backscatter radiation. In the other technique, a gamma ray detector measures gamma rays emitted when the emitted neutrons are absorbed in the pipeline. A neutron moderator-reflector is placed around three sides of the pipeline to increase the likelihood of neutron capture.

Abstract: The miniaturized pipe inspection system for measuring corrosion and scale in small pipes utilizes scattered radiation, which is measured by high efficiency solid scintillation gamma detector/spectrometer inserted inside the tube and separated from its bulky photomultiplier tube (PMT) and associated electronics by light pipe or fiber optic cable whose diameter can be very small. The light signal produced in the scintillation material is transmitted through the light pipe to outside the pipe to be inspected, where a PMT and electronic components including gamma ray energy analyzers are located. Gamma spectroscopy combined with gamma counting allows for multiple gamma ray primary and multiple backscattered radiation, thereby yielding high accuracy and high reliability of obtained corrosion, erosion and deposits data.

Abstract: The collimator for backscattered radiation imaging has a plurality of parallel, arrayed passages formed therethrough. The collimator is positioned in front of a radiographic imaging device, such as a radiographic plate, radiographic film or the like, such that the plurality of parallel, arrayed passages are positioned orthogonal to a plane of the radiographic imaging device. An object, such as a wall of an insulated pipe, for example, is then exposed to gamma or X-ray radiation, and image exposures are made on the radiographic imaging device of backscattered radiation from the wall of the insulated pipe or other object. The collimator is shifted in between each of the exposures. The collimator may have a parallelepiped body, or, alternatively, may have a cylindrical body. The parallelepiped collimator is shifted linearly in front of the radiographic imaging device, and the cylindrical collimator is rotated in front of the radiographic imaging device.

Abstract: The system for the inspection and imaging of insulated pipes and vessels using backscattered gamma radiation and X-ray fluorescence includes a frame having a pair of coaxial rings adapted for coaxial mounting about the insulated pipe, vessel or the like. A pair of rotating supports are rotatably mounted within the pair rings for driven rotation thereof. A plurality of horizontal supports are secured to, and extend between, the pair of rotating supports such that each of the horizontal supports extends along a direction parallel to an axis of the insulated pipe. A plurality of inspection modules are slidably mounted to the horizontal supports. Each inspection module includes at least one radiation source, an X-ray fluorescence detector and a backscattered gamma radiation detector. The plurality of inspection modules are linearly translated along the axial direction of the pipe, and also circumferentially rotated therearound for simultaneous, three-dimensional inspection of the pipe body.