Abstract: An X-ray generating device includes an electron beam generator configured to generate an electron beam; a target configured to generate X-rays in response to the electron beam incident on the target; an eccentric rotator configured to be cocentrically rotated to rotate the target while changing a position of the target; and a driver configured to rotationally drive the eccentric rotator.

Abstract: In an X-ray CT apparatus, a processor is configured to display, on a display device, an X-ray projection image based on projection data, and perform processing of displaying a GUI, which is a graphical user interface for setting or adjusting a region of interest in a rotation axis direction of a subject for which a tomographic image is reconstructed, in region-of-interest reconstruction processing.

Abstract: In an X-ray CT apparatus, a processor is configured to display, on a display device, a tomographic image, and perform processing of displaying a GUI, which is a graphical user interface for setting or adjusting a Hilbert transformation region on which processing by the Hilbert transformation is performed, in region-of-interest reconstruction processing.

Abstract: An X-ray analyzer has a configuration including an X-ray source, an X-ray detector configured to detect an X-ray irradiated from the X-ray source, a rotary stage (stage) disposed between the X-ray source and the X-ray detector, and configured to hold an imaging target, and a light irradiation mechanism configured to irradiate light coaxially with an X-ray optical axis of the X-ray irradiated from the X-ray source to project a shadow of the imaging target onto a position of the X-ray detector.

Abstract: An X-ray analyzer has a configuration including an X-ray source, an X-ray detector configured to detect an X-ray irradiated from the X-ray source, a rotary stage (stage) disposed between the X-ray source and the X-ray detector, and configured to hold an imaging target, and a light irradiation mechanism configured to irradiate light coaxially with an X-ray optical axis of the X-ray irradiated from the X-ray source to project a shadow of the imaging target onto a position of the X-ray detector.

Abstract: Between an X-ray source and a rotating stage 13, a marker member including a flat plate 21 formed with markers M and a support part 22 supporting the flat plate 21 is arranged. The formation positions of the markers M on the flat plate 21 are set to positions that allow the distance between the markers M to be most separated in an area in which both of the markers M are not superimposed on a projection image of a subject within the detection range of an X-ray detector 12 and that is constantly included within the detection range even when an X-ray focal point is moved. Also, the length of the support part 22 is adjusted to a length resulting in a side end of the detection range of the X-ray detector where the flat plate 21 and the markers M are not superimposed on the subject W on a projection image.

Abstract: A plurality of CT imaging conditions are created beforehand as presets, each preset is created beforehand as an icon, and each preset is associated with an icon and registered. Each icon is disposed in a CT imaging condition setting screen according to a spatial resolution and density resolution that serve as two-dimensional indexes relating to image quality. The selection of a given icon by a user results in the selection of the CT imaging conditions corresponding to the selected icon. The indexes relate to image quality and are two-dimensional, and this facilitates operation and makes it possible to intuitively select optimal CT imaging conditions with a small number of steps.

Abstract: Between an X-ray source and a rotating stage 13, a marker member including a flat plate 21 formed with markers M and a support part 22 supporting the flat plate 21 is arranged. The formation positions of the markers M on the flat plate 21 are set to positions that allow the distance between the markers M to be most separated in an area in which both of the markers M are not superimposed on a projection image of a subject within the detection range of an X-ray detector 12 and that is constantly included within the detection range even when an X-ray focal point is moved. Also, the length of the support part 22 is adjusted to a length resulting in a side end of the detection range of the X-ray detector where the flat plate 21 and the markers M are not superimposed on the subject W on a projection image.

Abstract: A plurality of CT imaging conditions are created beforehand as presets, each preset is created beforehand as an icon, and each preset is associated with an icon and registered. Each icon is disposed in a CT imaging condition setting screen according to a spatial resolution and density resolution that serve as two-dimensional indexes relating to image quality. The selection of a given icon by a user results in the selection of the CT imaging conditions corresponding to the selected icon. The indexes relate to image quality and are two-dimensional, and this facilitates operation and makes it possible to intuitively select optimal CT imaging conditions with a small number of steps.

Abstract: A radiation CT apparatus that can gain a clear tomogram without a rotation axis runout and without fail through a single CT scan and a simple operation is provided. When the data on the projection with radiation collected through a CT scan is first reconstructed through an arithmetic operation by a reconstruction arithmetic operation unit 13, temporary coordinates that have been set in advance as the coordinates of the projected rotation axis so as to construct a tomogram along a predetermined sliced surface are used, this tomogram is displayed on the screen for changing the rotation axis coordinates that include the temporary coordinates, and the coordinates of the projected rotation axis are shifted by any amount in any direction through an operation on the screen so that a reconstruction arithmetic operation is again carried out in the reconstruction arithmetic operation unit 13.

Abstract: A radiation CT apparatus that can gain a clear tomogram without a rotation axis runout and without fail through a single CT scan and a simple operation is provided. When the data on the projection with radiation collected through a CT scan is first reconstructed through an arithmetic operation by a reconstruction arithmetic operation unit 13, temporary coordinates that have been set in advance as the coordinates of the projected rotation axis so as to construct a tomogram along a predetermined sliced surface are used, this tomogram is displayed on the screen for changing the rotation axis coordinates that include the temporary coordinates, and the coordinates of the projected rotation axis are shifted by any amount in any direction through an operation on the screen so that a reconstruction arithmetic operation is again carried out in the reconstruction arithmetic operation unit 13.