Abstract: A radiological imaging apparatus includes an imaging apparatus having an opening for insertion of a bed thereinto, and an attenuation correction data creating device. The imaging has a plurality of radiation detectors disposed around the opening and a plurality of gamma ray generation units residing between the opening and the radiation detectors disposed at a position nearest to the opening and being placed in a longitudinal direction of the bed. Each ?-ray generation unit has ?-ray sources of single photon emission nuclear species and is arranged to externally radiate a ?-ray alternately from either one of the ?-ray generators toward the opening. The data creator prepares attenuation correction data based on a detection signal as output from the radiation detector due to the incoming radiation of ?-rays from the ?-ray generator.

Abstract: Disclosed herein is a radiation imaging apparatus and radiation-imaging-apparatus-based nuclear medicine diagnosis apparatus having a collimator in which a plurality of rectangular through-holes are arranged in a grid pattern and separated by septa is rotated through a predetermined angle as viewed from above in relation to the layout of a plurality of rectangular detectors that are arranged in a grid pattern. The predetermined angle ranges from 20 to 70 degree and more preferably from 30 deg to 60 deg. With this configuration, the influence of sensitivity variations (moire patterns) that are included in an image picked up due to interference with a collimator when pixel type detectors are used is eliminated.

Abstract: A radiation imaging system is configured by a collimator 30A including a detector 21 with a discrete detection pixel corresponding with a pixel and a plurality of radiation passages 31 and looks into a plurality of detectors 21 through one radiation passage 31 to set a step width of rotation around a rotation center axis X1 only for an angle ?p made by lines provided by connecting a center detector 21 of the radiation passage 31 and the adjacent two detectors 21. In the case of generating a flat plane projection image for one direction, radio-graphing is carried out on a projection image in a plurality of predetermined angle positions (??p, 0, +?p) in the circumferential direction of the rotation center axis X1 and thereby one plane projection image is obtained.

Abstract: The invention discloses a transporting apparatus that transmits a drive force to a transported object in a state where the transported object is supported by a air-supplying-type support apparatus. In one implementation thereof, a device for transferring drive force to a transported object transfers drive force to one side in the width direction, which is perpendicular to the transporting direction. In another implementation thereof, the transporting apparatus can be switched between a horizontal state in which the transported object is supported substantially horizontally, and an upright state.

Abstract: It is an object of the present invention to provide a plate-shaped work piece transporting apparatus that has a fan, a dust-removal filter disposed above this fan, and a plate-shape porous member disposed above the dust-removal filter. By forming a chamber in which air can accumulate between the porous member and the dust-removal filter, it is possible to suppress air pulsations. Further, by providing support members on the porous member, the plate-shaped work piece can be supported and damage thereto can be avoided when the plate-shaped work piece, which is supported by air from the fan, drops to below a set height.

Abstract: Disclosed herein is a radiation imaging apparatus and radiation-imaging-apparatus-based nuclear medicine diagnosis apparatus having a collimator in which a plurality of rectangular through-holes are arranged in a grid pattern and separated by septa is rotated through a predetermined angle as viewed from above in relation to the layout of a plurality of rectangular detectors that are arranged in a grid pattern. The predetermined angle ranges from 20 to 70 degree and more preferably from 30 deg to 60 deg. With this configuration, the influence of sensitivity variations (moire patterns) that are included in an image picked up due to interference with a collimator when pixel type detectors are used is eliminated.

Abstract: The invention discloses a transporting apparatus provided with a air-supplying-type support device for supplying purified air toward a lower surface of a transported object to contactlessly support the transported object in a horizontal orientation or a substantially horizontal orientation, a drive force application device for applying a drive force in the transporting direction to the transported object, a first transport member, a second transport member, and a relay transport member that links the first transport member and the second transport member. The drive force application device applies a drive force by contacting a lower surface of the transported object that is supported by the air-supplying-type support device. The relay transport member changes at least one of the transporting direction and the transporting orientation of the transported object.

Abstract: A radiological imaging apparatus includes an imaging apparatus having an opening for insertion of a bed thereinto, and an attenuation correction data creating device. The imaging has a plurality of radiation detectors disposed around the opening and a plurality of gamma ray generation units residing between the opening and the radiation detectors disposed at a position nearest to the opening and being placed in a longitudinal direction of the bed. Each ?-ray generation unit has ?-ray sources of single photon emission nuclear species and is arranged to externally radiate a ?-ray alternately from either one of the ?-ray generators toward the opening. The data creator prepares attenuation correction data based on a detection signal as output from the radiation detector due to the incoming radiation of ?-rays from the ?-ray generator.

Abstract: It is an object of the invention to provide an apparatus for transporting a transported object in a transporting direction as the transported object is supported by air, the apparatus having a plurality of transporting units. A specific transporting unit of the plurality of transporting units is controlled based on the transporting state of at least one other transporting unit. Thus, it is possible to reduce the number of problems that may occur during transporting.

Abstract: It is an object of the invention to provide an apparatus for transporting a transported object in a transporting direction as the transported object is supported by air, the apparatus having a plurality of transporting units. A specific transporting unit of the plurality of transporting units is controlled based on the transporting state of at least one other transporting unit. Thus, it is possible to reduce the number of problems that may occur during transporting.

Abstract: It is an object to provide a plate-shaped work piece transporting apparatus provided with a blowing mechanism for contactlessly supporting a plate-shaped work piece that is transported, where the blowing mechanism is provided with a dust-removal filter and a blowing mechanism for sending air to the lower surface of the plate-shaped work piece via the dust-removal filter. In a first embodiment, a driving mechanism for contacting the plate-shaped work piece and moving it in the transporting direction is provided.

Abstract: Disclosed herein is a radiation imaging apparatus and radiation-imaging-apparatus-based nuclear medicine diagnosis apparatus having a collimator in which a plurality of rectangular through-holes are arranged in a grid pattern and separated by septa is rotated through a predetermined angle as viewed from above in relation to the layout of a plurality of rectangular detectors that are arranged in a grid pattern. The predetermined angle ranges from 20 to 70 degree and more preferably from 30 deg to 60 deg. With this configuration, the influence of sensitivity variations (moire patterns) that are included in an image picked up due to interference with a collimator when pixel type detectors are used is eliminated.

Abstract: The invention discloses a transporting apparatus having a transport member provided with a air-supplying-type support portion for supplying purified air toward a lower surface of a transported object to contactlessly support the transported object, and a drive force application portion for contacting a lower surface of the transported object that is supported by the air-supplying-type support means and applying a drive force in the transporting direction to the transported object. The transporting apparatus, by raising and lowering the drive force application portion and the air-supplying-type support portion relative to one another, can be switched between a transport state where the drive force application portion is brought into contact with the lower surface of the transported object, and a transfer state where the drive force application portion is moved downward away from the transported object that is supported by the air-supplying-type support portion.

Abstract: The invention discloses a transporting apparatus having a transport member provided with a air-supplying-type support portion for supplying purified air toward a lower surface of a transported object to contactlessly support the transported object, and a drive force application portion for contacting a lower surface of the transported object that is supported by the air-supplying-type support means and applying a drive force in the transporting direction to the transported object. The transporting apparatus, by raising and lowering the drive force application portion and the air-supplying-type support portion relative to one another, can be switched between a transport state where the drive force application portion is brought into contact with the lower surface of the transported object, and a transfer state where the drive force application portion is moved downward away from the transported object that is supported by the air-supplying-type support portion.

Abstract: The invention discloses a transporting apparatus provided with a air-supplying-type support device for supplying purified air toward a lower surface of a transported object to contactlessly support the transported object in a horizontal orientation or a substantially horizontal orientation, a drive force application device for applying a drive force in the transporting direction to the transported object, a first transport member, a second transport member, and a relay transport member that links the first transport member and the second transport member. The drive force application device applies a drive force by contacting a lower surface of the transported object that is supported by the air-supplying-type support device. The relay transport member changes at least one of the transporting direction and the transporting orientation of the transported object.

Abstract: The invention discloses a transporting apparatus that transmits a drive force to a transported object in a state where the transported object is supported by a air-supplying-type support apparatus. In one implementation thereof, a device for transferring drive force to a transported object transfers drive force to one side in the width direction, which is perpendicular to the transporting direction. In another implementation thereof, the transporting apparatus can be switched between a horizontal state in which the transported object is supported substantially horizontally, and an upright state.

Abstract: It is an object of the invention to provide an apparatus for transporting a transported object in a transporting direction as the transported object is supported by air, the apparatus having a plurality of transporting units. A specific transporting unit of the plurality of transporting units is controlled based on the transporting state of at least one other transporting unit. Thus, it is possible to reduce the number of problems that may occur during transporting.

Abstract: It is an object of the present invention to provide a plate-shaped work piece transporting apparatus that has a fan, a dust-removal filter disposed above this fan, and a plate-shape porous member disposed above the dust-removal filter. By forming a chamber in which air can accumulate between the porous member and the dust-removal filter, it is possible to suppress air pulsations. Further, by providing support members on the porous member, the plate-shaped work piece can be supported and damage thereto can be avoided when the plate-shaped work piece, which is supported by air from the fan, drops to below a set height.

Abstract: It is an object to provide a plate-shaped work piece transporting apparatus provided with a blowing mechanism for contactlessly supporting a plate-shaped work piece that is transported, where the blowing mechanism is provided with a dust-removal filter and a blowing mechanism for sending air to the lower surface of the plate-shaped work piece via the dust-removal filter. In a first embodiment, a driving mechanism for contacting the plate-shaped work piece and moving it in the transporting direction is provided.

Abstract: A fuel assembly comprises a plurality of fuel rods, moderator rods disposed among the fuel rods, upper and lower tie plates for holding both end portions of the fuel rods and the moderator rods, and fuel spacers for keeping distances between the fuel rods and the moderator rods constant. The fuel assembly is characterized in that there is provided a space region extending from the upper tie plate to the lower tie plate and having a space enough to dispose at least one of the fuel rods. At least one of the moderator rods being disposed adjacent to the space region. The fuel rods, the moderator rods, and the space region are disposed in a grid form.