Abstract: According to one embodiment, in an X-ray tube, an electron convergence cup has a first surface located closer to the anode, and an electron convergence groove opening on the first surface and housing a filament. The first surface has a first edge located on the opening, and a second edge located on the opening and opposite to the first edge in a first direction. The first edge is closer to an outer peripheral part than the second edge is. When the distance between the first edge and the filament in the first direction is defined as a first distance and the distance between the second edge and the filament in the first direction is defined as a second distance, the first distance is shorter than the second distance.

Abstract: According to one embodiment, an X-ray tube device includes a cathode which emits electrons, an anode target which generates X-rays when the electrons emitted from the cathode collide therewith, a first tube portion, a second tube portion which forms a flow path of a coolant together with the first tube portion, and a protective film. The protective film covers an inner surface of the first tube portion, and is formed of hard gold.

Abstract: A radiation detection module according to an embodiment includes an array substrate including multiple photoelectric converters, a scintillator that covers a region in which the multiple photoelectric converters are located and that has larger dimensions than the region in which the multiple photoelectric converters are located when viewed in plan, and a light-absorbing part that is located on the scintillator and is capable of absorbing visible light. The light-absorbing part is located outward of the region in which the multiple photoelectric converters are located when viewed in plan.

Abstract: According to one embodiment, an analytical X-ray tube includes a vacuum enclosure with an output window to transmit X-rays, an anode target provided in the vacuum enclosure and opposing the output window, an anode support that supports the anode target. The anode support includes a distal end portion an outer diameter of which is smaller than an outer diameter of the anode target, and a rear side portion on a rear side of the distal end portion, an outer diameter of which is greater than the outer diameter of the anode target, and an outer surface of the rear portion is coated with a coating layer of a same material as that of the anode target.

Abstract: According to an embodiment, a radiation detector includes: a substrate; multiple control lines; multiple data lines; multiple detecting parts detecting radiation including thin film transistors; a control circuit switching between ON and OFF-states of the transistor; a signal detection circuit reading image data when the transistor is in the ON-state; and an incident radiation detecting part determining an incidence start time of the radiation based on a value of the image data read when the transistor is in the ON-state. When the incident radiation detecting part determines that radiation incidence has started, the signal detection circuit performs a first reading process of further reading image data when the transistor is in the ON-state. The control circuit performs an image storage process of setting all of the transistors to the OFF-state after the first reading process.

Abstract: According to one embodiment, an X-ray tube includes an anode including a target surface, and a cathode including a first filament and a focusing electrode. The focusing electrode includes a valley bottom portion, a first inclined plane sloping up from the valley bottom portion in a direction of the anode, a first focusing groove, and a first storage groove. ?1 is greater than 0°. The first focusing groove has a longitudinal axis. One end portion on the first extension line side of the first focusing groove is closer to a first reference surface than the other end portion of the first focusing groove.

Abstract: A radiation detector according to an embodiment includes: control lines; data lines; detecting parts; a gate drive circuit; a signal detection circuit; a radiation incidence determination circuit; and a controller controlling the gate drive circuit and the signal detection circuit. The controller performs the control by dividing the control lines into a first group and a second group, the radiation incidence determination circuit determines the incidence start of the radiation based on a value of the image data read from the detecting part electrically connected to the control line included in the first group. Or, the controller performs the control by dividing the data lines into a third group and a fourth group, the radiation incidence determination circuit determines the incidence start of the radiation based on a value of the image data read from the detecting part electrically connected to the data line included in the third group.

Abstract: According to one embodiment, an X-ray tube assembly includes a cathode emitting electrons, an anode target generating X-rays when the electrodes emitted from the cathode collide with the anode target, an anode block, a coolant pipe, and a protective film. The anode block includes a tube portion, and a bottom portion closing one end side of the tube portion and joined to the anode target. The coolant pipe is located on an inner side of the tube portion, includes an outlet from which a coolant is discharged toward the bottom portion, and forms a flow passage of the coolant between the coolant pipe and the anode block. The protective film covers an inner surface of the bottom portion and is formed of hard gold containing nickel.

Abstract: A radiation detection module according to an embodiment includes: an array substrate including multiple photoelectric converters; a scintillator provided on the multiple photoelectric converters; a sealing part that has a frame shape, is provided around the scintillator, is bonded to the array substrate and the scintillator, and includes a thermoplastic resin as a major component; and a moisture-resistant part covering the scintillator from above, in which a peripheral edge vicinity is bonded to an outer surface of the sealing part. The shape of the outer surface of the sealing part is a curved surface protruding outward.

Abstract: According to one embodiment, an X-ray tube assembly includes a cathode emitting electrons, an anode target generating X-rays when the electrodes emitted from the cathode collide with the anode target, an anode block, a coolant pipe, and a protective film. The anode block includes a tube portion, and a bottom portion closing one end side of the tube portion and joined to the anode target. The coolant pipe is located on an inner side of the tube portion, includes an outlet from which a coolant is discharged toward the bottom portion, and forms a flow passage of the coolant between the coolant pipe and the anode block. The protective film covers an inner surface of the bottom portion and is formed of hard gold containing nickel.

Abstract: According to one embodiment, a radiation detector includes a photo-electric conversion substrate, a scintillator layer containing a main material and a dope material and a light reflective layer or a moisture barrier layer, formed on a front surface side of the scintillator layer along a shape of the front surface of the scintillator layer. The scintillator layer includes a mixed layer portion formed of the main material the dope material on the photo-electric conversion substrate, and a dope material layer portion formed of only the dope material on a front surface side of the mixed layer portion. A front surface of at least the dope material layer portion is formed into relatively coarse shape compared to the mixed layer portion.

Abstract: According to one embodiment, an X-ray tube includes an anode target, a cathode including a first filament and a converging electrode, and a vacuum envelope. The converging electrode includes a flat front surface, a flat first surface, a first groove portion, and a pair of first protruding portions. The pair of first protruding portions is formed to protrude from the first surface toward the front surface and sandwich the first groove portion in a first length direction. An upper surface is formed of a plurality of flat inclined surfaces.

Abstract: According to one embodiment, a radiation detection panel includes a substrate, a plurality of photoelectric conversion elements, an insulating layer, a protective layer, a bonding layer, a scintillator, and a moisture-proof layer. The photoelectric conversion elements are provided on one surface of the substrate. The insulating layer is provided on the photoelectric conversion elements and is light transmissive. The protective layer is provided at least on the insulating layer. The bonding layer is provided between the insulating layer and the protective layer, includes a material having at least one of a reactive group that chemically bonds to an inorganic material and a reactive group that chemically bonds to an organic material, and is light transmissive. The scintillator is provided on the protective layer and covers the plurality of photoelectric conversion elements. The moisture-proof layer covers at least the scintillator.

Abstract: According to one embodiment, an x-ray tube includes a cathode and an anode. The cathode includes a filament coil and a focusing electrode that includes a valley bottom part, a first inclined plane rising from the valley bottom part and inclined in the direction of the anode, a first focusing groove, and a first receiving groove. The anode includes a target surface. ?1>0°. The filament coil, the first receiving groove, and the first focusing groove are positioned more to a third extended line side than a first reference plane. One end part of the first receiving groove is closer to the first reference plane than the other end part.

Abstract: According to one embodiment, an X-ray tube includes a vacuum envelope, a cathode, an anode, and an X-ray transmission assembly. The X-ray transmission assembly includes an X-ray transmission window and an X-ray tube attachment portion. The X-ray tube attachment portion includes a passage port to allow an available X-ray flux to pass therethrough and is opposed to an opening of the vacuum envelope. The passage port has a first shape of a rectangle, an ovally rounded rectangle or a corner-rounded rectangle. The first shape has a longer axis orthogonal to an X-ray tube axis.

Abstract: According to one embodiment, a radiation detector includes detection parts detecting radiation directly or in cooperation with a scintillator, a controller reading out a signal charge from each detection part, a memory part storing an upper limit and a lower limit of a normal pixel value in a dark image preliminarily obtained and data about a temperature dependence of the upper and lower limits, and a temperature sensor measuring a temperature of the radiation detector. The controller reads out the signal charge from each detection part in a state of no intended radiation irradiation and images the dark image, acquires a temperature when the dark image measured by the temperature sensor is imaged, extracts the upper and lower limits corresponding to the acquired temperature from the memory part, and inspects a pixel value in the imaged dark image by using the extracted upper limit and the lower limit.

Abstract: According to one embodiment, an X-ray tube, including a cathode including a filament including a leg portion extending from a coil to a distal portion and including a corner portion at the distal portion, a support terminal including a gap, and including an opening portion in which the gap is opened and a bottom portion located on a side opposite to the opening portion, and a cathode cup being connected to the support terminal, the distal portion being located in the gap, the support terminal including a protruding portion protruding in the gap, being located more closely to the bottom portion side than the distal portion, and being joined to the corner portion of the leg portion.

Abstract: In one embodiment, a rotating anode type X-ray tube comprises a fixed shaft having a first surface, a rotor, a cathode emitting electrons, and an anode target. The rotor comprises a first cylinder having a second surface, a second cylinder, and a third cylinder. A first threaded portion on an inner surface of the first cylinder and a second threaded portion on an outer peripheral surface of the third cylinder are tightened. A screw member is screwed in a third threaded portion on an inner peripheral surface of a hole which penetrates the third cylinder, and a tip portion of the screw member presses the second cylinder against the second surface.

Abstract: According to one embodiment, an X-ray tube includes an anode including a target surface, and a cathode including a first filament and a focusing electrode. The focusing electrode includes a valley bottom portion, a first inclined plane sloping up from the valley bottom portion in a direction of the anode, a first focusing groove, and a first storage groove. ?1 is greater than 0°. The first focusing groove has a longitudinal axis. One end portion on the first extension line side of the first focusing groove is closer to a first reference surface than the other end portion of the first focusing groove.

Abstract: According to one embodiment, an X-ray tube comprises a cathode for emitting electrons, an anode having an anode target with which electrons emitted from the cathode collides to radiate X-rays, a glass container housing the cathode and the anode, an anode rod extending from the anode to an outside of the container, an annular metal member through which the anode rod is inserted, the annular metal member connecting the anode and the container to maintain an inside of the container in vacuum, and an electrically insulating molding resin member charged into a space formed between the anode rod and outer surfaces of the container and the metal member.