摘要:
An X-ray apparatus includes a rotation-anode type X-ray tube which is configured such that a rotatable anode target and a cathode that is disposed to be opposed to the anode target are accommodated within a vacuum envelope, a stator which generates an induction electromagnetic field for rotating the anode target, a housing which accommodates and holds at least the rotation-anode type X-ray tube, a circulation path which is provided near at least a part of the rotation-anode type X-ray tube, and through which a water-based coolant is circulated, and a cooling unit including a circulation pump, which is provided at a position along the circulation path and forcibly feeds the water-based coolant, and a radiator which radiates heat of the water-based coolant, wherein an amount of dissolved oxygen at 25° C. in the water-based coolant is 5 mg/liter or less.
摘要:
The present invention is characterized by supporting a stator to generate a magnetic field and an anode target by a dynamic pressure plain bearing using a liquid metal, and cooling at least the inside of the dynamic pressure plain bearing and an enclosure containing an anode target by circulating one kind of cooling medium, in a rotary X-ray tube apparatus which obtains X-rays by impinging an electron on an anode by rotating an anode target.
摘要:
The present invention is characterized by supporting a stator to generate a magnetic field and an anode target by a dynamic pressure plain bearing using a liquid metal, and cooling at least the inside of the dynamic pressure plain bearing and an enclosure containing an anode target by circulating one kind of cooling medium, in a rotary X-ray tube apparatus which obtains X-rays by impinging an electron on an anode by rotating an anode target.
摘要:
An X-ray apparatus includes a rotation-anode type X-ray tube which is configured such that a rotatable anode target and a cathode that is disposed to be opposed to the anode target are accommodated within a vacuum envelope, a stator which generates an induction electromagnetic field for rotating the anode target, a housing which accommodates and holds at least the rotation-anode type X-ray tube, a circulation path which is provided near at least a part of the rotation-anode type X-ray tube, and through which a water-based coolant is circulated, and a cooling unit including a circulation pump, which is provided at a position along the circulation path and forcibly feeds the water-based coolant, and a radiator which radiates heat of the water-based coolant, wherein an amount of dissolved oxygen at 25° C. in the water-based coolant is 5 mg/liter or less.
摘要:
An X-ray apparatus includes a rotation-anode type X-ray tube which is configured such that a rotatable anode target and a cathode that is disposed to be opposed to the anode target are accommodated within a vacuum envelope, a stator which generates an induction electromagnetic field for rotating the anode target, a housing which accommodates and holds at least the rotation-anode type X-ray tube, a circulation path which is provided near at least a part of the rotation-anode type X-ray tube, and through which a water-based coolant is circulated, and a cooling unit including a circulation pump, which is provided at a position along the circulation path and forcibly feeds the water-based coolant, and a radiator which radiates heat of the water-based coolant, wherein at least a part of a surface of a metallic component is coated with a coating member to prevent contacting with the water-based coolant.
摘要:
The present invention relates to an X-ray apparatus comprising an electron radiation source which generates an electron to an anode, a shaft which rotatably supports the anode, a stator which generates a force to rotate a rotor shaft, an enclosure which maintains at least the anode, electron radiation source and rotor shaft in vacuum, and a housing which contains a cooling medium around the enclosure. The X-ray apparatus is characterized in that an electric wire material to supply power to the electron radiation source and stator, or a connector used for connection with the electric wire material is molded by a material having an electrical insulating property.
摘要:
An X-ray apparatus includes a rotation-anode type X-ray tube which is configured such that a rotatable anode target and a cathode that is disposed to be opposed to the anode target are accommodated within a vacuum envelope, a stator which generates an induction electromagnetic field for rotating the anode target, a housing which accommodates and holds at least the rotation-anode type X-ray tube, a circulation path which is provided near at least a part of the rotation-anode type X-ray tube, and through which a water-based coolant is circulated, and a cooling unit including a circulation pump, which is provided at a position along the circulation path and forcibly feeds the water-based coolant, and a radiator which radiates heat of the water-based coolant, wherein at least a part of a surface of a metallic component is coated with a coating member to prevent contacting with the water-based coolant.
摘要:
The present invention relates to an X-ray apparatus comprising an electron radiation source which generates an electron to an anode, a shaft which rotatably supports the anode, a stator which generates a force to rotate a rotor shaft, an enclosure which maintains at least the anode, electron radiation source and rotor shaft in vacuum, and a housing which contains a cooling medium around the enclosure. The X-ray apparatus is characterized in that an electric wire material to supply power to the electron radiation source and stator, or a connector used for connection with the electric wire material is molded by a material having an electrical insulating property.
摘要:
A capacitor comprising: a capacitor body including a plurality of laminated dielectric layers, a plurality of inner electrode layers which are respectively disposed between mutually adjacent ones of the dielectric layers, a first main surface located in a laminated direction of the dielectric layers, and a second main surface opposite to the first main surface; a first outer electrode formed on the first main surface of the capacitor body and electrically connected to the inner electrode layers; a second outer electrode formed on the second main surface of the capacitor body and electrically connected to the inner electrode layers; a first dummy electrode formed on the first main surface of the capacitor body; and a second dummy electrode formed on the second main surface of the capacitor body.
摘要:
A method of emanating a sound from a vehicle includes detecting a transmission state and a brake state of the vehicle and determining whether a vehicle movement state indicates intent to move the vehicle from a stationary state based on the transmission state and the brake state. The method further includes emanating the sound when the vehicle movement state indicates intent to move the vehicle, and refraining from emanating the sound when the vehicle is in the stationary state and the vehicle movement state fails to indicate intent to move the vehicle.