Abstract: In an X-ray source 1 and an X-ray tube 4, there is formed a shield portion 42 adapted to shield the portion W where a target support body 18 and an opening portion 34 on the other end side of a valve 20 are fixed to each other when viewed from the one end side of the valve 20. Therefore, the generation of discharge between the one end side of the valve 20 and the fixation portion W can be suppressed. Also, the other end portion of the valve 20 is formed as a narrowed portion 37 and the opening portion 34 on the other end side of the valve 20 is fixed to the target support body 18, whereby the shapes of the valve 20 and the shield portion 42 can be made simpler than in conventional X-ray tubes in which an inner cylindrical portion is formed in a valve. Such a simple structure can improve the stability of an electric field in the valve 20 when generating X-rays and thereby achieve an effective suppression of the generation of discharge in the valve 20.

Abstract: An X-ray generator of this invention has an X-ray monitor that monitors a state of an X-ray emitted from a target. Hence the state of the X-ray can be monitored in real time to maintain the X-ray in a constant state. The X-ray monitor is positioned off the path on which an X-ray transmitted from a first exit window travels. Hence, when the X-ray is emitted from the first exit window to an object to be inspected, the X-ray monitor does not obstruct the approaching of the object to the first exit window. This makes it possible to acquire X-ray images of high magnification.

Abstract: The present invention discloses an X-ray source comprising an X-ray source including a high-voltage applying part for generating an X-ray projecting from a bulb part; a power supply including an insulating block molding therein a voltage generating part for supplying a voltage to the high-voltage applying part; and a metallic tubular member accommodating the bulb part and securing the X-ray tube. The metallic tubular member is secured to the outside of the insulating block. The metallic tubular member encapsulates therein an insulating liquid material for the bulb part to be dipped therein.

Abstract: An x-ray emitting window is formed at a front end face, and a taper surface tilted with respect to the x-ray emitting direction is formed near the emitting window, whereby an object to be inspected can be prevented from abutting against the front end face even if the object is pivoted about an axis intersecting the emitting direction while the object is disposed closer to the x-ray emitting window. As a consequence, while the object is disposed closer to the x-ray emitting position, the orientation of the object can be changed. Therefore, when inspecting the internal structure of the object and the like by irradiating the object with x-rays and detecting the x-rays transmitted through the object, not only a magnified penetration image of the object with a high magnification rate is obtained, but also the internal structure of the object and the like can be verified in detail by changing the orientation of the object.

Abstract: The present invention discloses an X-ray source comprising an X-ray source including a high-voltage applying part for generating an X-ray projecting from a bulb part; a power supply including an insulating block molding therein a voltage generating part for supplying a voltage to the high-voltage applying part; and a metallic tubular member accommodating the bulb part and securing the X-ray tube. The metallic tubular member is secured to the outside of the insulating block. The metallic tubular member encapsulates therein an insulating liquid material for the bulb part to be dipped therein.

Abstract: An X-ray tube 1 comprises of a bulb 10 joined to an envelope main body 4 at one end side thereof and having an inner cylinder portion 10a extending inwardly at the other end side thereof, a metal tube 11 having an extension portion 11a abutting against the inner cylinder portion 10a on the outer periphery of one end side thereof and projecting to the outside of the bulb 10 through the inner cylinder portion 10a at the other end side thereof, and a target supporter 12 supporting a target T at the one end side thereof and inserted into the metal tube 11 at the other side thereof. The inner cylinder portion 10a of the bulb 10 and the extension portion 11a of the metal tube 11 are fuse-bonded to each other, and the target supporter 12 is welded to the end portion of the metal tube 11 projecting from the bulb 10.

Abstract: The present invention discloses an X-ray source comprising an X-ray source including a high-voltage applying part for generating an X-ray projecting from a bulb part; a power supply including an insulating block molding therein a voltage generating part for supplying a voltage to the high-voltage applying part; and a metallic tubular member accommodating the bulb part and securing the X-ray tube. The metallic tubular member is secured to the outside of the insulating block. The metallic tubular member encapsulates therein an insulating liquid material for the bulb part to be dipped therein.

Abstract: The present invention discloses an X-ray source comprising an X-ray tube including a target generating an X-ray in response to an electron beam incident thereon emitted from an electron gun and an X-ray exit window emitting thus generated X-ray; a power supply having a structure including an insulating block molding therein a voltage generating part supplying a voltage to the X-ray tube; a first planar member securing the X-ray tube while being arranged on one side of the insulating block; and a second planar member disposed on a side of the insulating block opposite from the first planar member. The first and second planar members are fastened to each other while holding the insulating block therebetween.

Abstract: The present invention discloses an X-ray source comprising an X-ray source including a high-voltage applying part for generating an X-ray projecting from a bulb part; a power supply including an insulating block molding therein a voltage generating part for supplying a voltage to the high-voltage applying part; and a metallic tubular member accommodating the bulb part and securing the X-ray tube. The metallic tubular member is secured to the outside of the insulating block. The metallic tubular member encapsulates therein an insulating liquid material for the bulb part to be dipped therein.

Abstract: The present invention discloses an X-ray source comprising an X-ray tube including a target generating an X-ray in response to an electron beam incident thereon emitted from an electron gun and an X-ray exit window emitting thus generated X-ray; a power supply having a structure including an insulating block molding therein a voltage generating part supplying a voltage to the X-ray tube; a first planar member securing the X-ray tube while being arranged on one side of the insulating block; and a second planar member disposed on a side of the insulating block opposite from the first planar member. The first and second planar members are fastened to each other while holding the insulating block therebetween.

Abstract: An X-ray generator of this invention has an X-ray monitor that monitors a state of an X-ray emitted from a target. Hence the state of the X-ray can be monitored in real time to maintain the X-ray in a constant state. The X-ray monitor is positioned off the path on which an X-ray transmitted from a first exit window travels. Hence, when the X-ray is emitted from the first exit window to an object to be inspected, the X-ray monitor does not obstruct the approaching of the object to the first exit window. This makes it possible to acquire X-ray images of high magnification.

Abstract: An x-ray emitting window is formed at a front end face, and a taper surface tilted with respect to the x-ray emitting direction is formed near the emitting window, whereby an object to be inspected can be prevented from abutting against the front end face even if the object is pivoted about an axis intersecting the emitting direction while the object is disposed closer to the x-ray emitting window. As a consequence, while the object is disposed closer to the x-ray emitting position, the orientation of the object can be changed. Therefore, when inspecting the internal structure of the object and the like by irradiating the object with x-rays and detecting the x-rays transmitted through the object, not only a magnified penetration image of the object with a high magnification rate is obtained, but also the internal structure of the object and the like can be verified in detail by changing the orientation of the object.

Abstract: An X-ray tube 1 comprises of a valve 10 joined to an envelope main body 4 at one end side thereof and having an inner cylinder portion 10a extending inwardly at the other end side thereof, a metal tube 11 having an extension portion 11a abutting against the inner cylinder portion 10a on the outer periphery of one end side thereof and projecting to the outside of the valve 10 through the inner cylinder portion 10a at the other end side thereof, and a target supporter 12 supporting a target T at the one end side thereof and inserted into the metal tube 11 at the other side thereof. The inner cylinder portion 10a of the valve 10 and the extension portion 11a of the metal tube 11 are fuse-bonded to each other, and the target supporter 12 is welded to the end portion of the metal tube 11 projecting from the valve 10.

Abstract: An x-ray emitting window is formed at a front end face, and a taper surface tilted with respect to the x-ray emitting direction is formed near the emitting window, whereby an object to be inspected can be prevented from abutting against the front end face even if the object is pivoted about an axis intersecting the emitting direction while the object is disposed closer to the x-ray emitting window. As a consequence, while the object is disposed closer to the x-ray emitting position, the orientation of the object can be changed. Therefore, when inspecting the internal structure of the object and the like by irradiating the object with x-rays and detecting the x-rays transmitted through the object, not only a magnified penetration image of the object with a high magnification rate is obtained, but also the internal structure of the object and the like can be verified in detail by changing the orientation of the object.

Abstract: An X-ray tube 1 includes spacer 8 which is cylindrical so it does not block electrons 80 directed from a grid electrode 72 toward a focusing electrode 25, and which has one end 8b fixed to the grid electrode 72 and the other end 8c abutting against the focusing electrode 25. The distance between the grid electrode 72 and focusing electrode 25 is set to a predetermined distance by the spacer 8.

Abstract: An x-ray tube is provisionally assembled by interposing an upright part (12A) projecting from a first brazing agent (A) between a stem (3) and a bulb (2), and by interposing a second brazing agent (B) between the bulb (2) and an output window (4). This temporary assembly is conveyed into a vacuum brazing oven (P). Since a gap (K) is provided between the stem (3) and the bulb (2) by the upright part (12A), gas inside the bulb (2) can be discharged through the gap (K). Then, the vacuum brazing oven (P) is heated to a predetermined temperature to melt the first and second brazing agents (A, B), to thus fuse-bondingly fix the stem (3) and the output window (4) to the bulb (2). Brazing connection is completed in the vacuum brazing oven (P) while maintaining the sealed vessel (7) in a high vacuum condition without provision of a discharge pipe in the stem (3).

Abstract: An X-ray tube 1 includes spacer 8 which is cylindrical so it does not block electrons 80 directed from a grid electrode 72 toward a focusing electrode 25, and which has one end 8b fixed to the grid electrode 72 and the other end 8c abutting against the focusing electrode 25. The distance between the grid electrode 72 and focusing electrode 25 is set to a predetermined distance by the spacer 8.

Abstract: An x-ray emitting window is formed at a front end face, and a taper surface tilted with respect to the x-ray emitting direction is formed near the emitting window, whereby an object to be inspected can be prevented from abutting against the front end face even if the object is pivoted about an axis intersecting the emitting direction while the object is disposed closer to the x-ray emitting window. As a consequence, while the object is disposed closer to the x-ray emitting position, the orientation of the object can be changed. Therefore, when inspecting the internal structure of the object and the like by irradiating the object with x-rays and detecting the x-rays transmitted through the object, not only a magnified penetration image of the object with a high magnification rate is obtained, but also the internal structure of the object and the like can be verified in detail by changing the orientation of the object.

Abstract: An X-ray tube 1 includes spacer 8 which is cylindrical so it does not block electrons 80 directed from a grid electrode 72 toward a focusing electrode 25, and which has one end 8b fixed to the grid electrode 72 and the other end 8c abutting against the focusing electrode 25. The distance between the grid electrode 72 and focusing electrode 25 is set to a predetermined distance by the spacer 8.

Abstract: An x-ray emitting window is formed at a front end face, and a taper surface tilted with respect to the x-ray emitting direction is formed near the emitting window, whereby an object to be inspected can be prevented from abutting against the front end face even if the object is pivoted about an axis intersecting the emitting direction while the object is disposed closer to the x-ray emitting window. As a consequence, while the object is disposed closer to the x-ray emitting position, the orientation of the object can be changed. Therefore, when inspecting the internal structure of the object and the like by irradiating the object with x-rays and detecting the x-rays transmitted through the object, not only a magnified penetration image of the object with a high magnification rate is obtained, but also the internal structure of the object and the like can be verified in detail by changing the orientation of the object.