Hamamatsu-photonics K.k.

Yutaka Ochiai

Tutomu Inazuru

Tsutomu Nakamura

Kinji Takase

Takane Yokoi

Masayoshi Ishikawa

Hiroki Kawakami

Toshihiro Suzuki

Tadaoki Matsushita

Mitsumasa Furukawa

Harumoto Sawada

A maximum tube voltage value setting module, a warming-up module, a limit tube voltage control module, a limit tube current control moduleand a focus grid electrode control moduleof an operation programwhich respectively correspond to different maximum tube voltage values are stored in storage sections-of an X-ray tube control apparatus. When the maximum tube voltage value of an X-ray tubeis changed, an extraction sectionextracts each module of the operation programwhich corresponds to the maximum tube voltage value after being changed from the storage sections-. A communications sectionsends the operation programcomprised of each extracted module to an X-ray tube controllerand overwrites it in a memory section

X-ray tube control apparatus and x-ray tube control method

An initial image (the image of a slit plateimaged when adjusted to an optimal focal diameter) is stored in a storage sectionof an X-ray tube adjusting apparatus. An acquisition sectionacquires a test image (the image of the slit plateimaged at the time of adjusting the focal diameter). A presentation sectionpresents the initial image and an image representing the luminance on the initial image (showing a contrast &#x394;a between a slit portionand a residual area portionin the initial image) and the test image and an image representing the luminance on the test image (showing a contrast &#x394;b between a slit portionand a residual area portionin the initial image) simultaneously (in a comparable manner).

X-ray tube adjustment apparatus, x-ray tube adjustment system, and x-ray tube adjustment method

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.

X-ray tube, x-ray generator, and inspection system

For eliminating a high-tension cable in order to improve the handling, the open type X-ray generating apparatus ( ) in accordance with the present invention employs a mold power unit in which a high-voltage generating part, a grid connecting line, and a filament connecting line which attain a high voltage are molded with a resin, whereas the mold power unit is secured to the proximal end side of a tubular portion ( ), whereby an apparatus of a type integrated with a power supply is realized. Since the high-voltage generating part, grid connecting line, and filament connecting line are confined within the resin mold as such, the degree of freedom in structure of the high-voltage generating part and the degree of freedom in bending the lines improve remarkably.

Open type X-ray generating apparatus

A nondestructive inspection apparatus with integrated power supply comprises a molded power supply section ( ) having a resin-molded high voltage (e.g. 160 kV) generating section ( ) secured to the base of a tubular section ( ). The durability and handlability are improved by omitting a high voltage cable. Since the high voltage generating section ( ) is confined in a molding resin, the degree of freedom in the arrangement of the high voltage generating section ( ) within the mold is enhanced significantly. Furthermore, an X-ray generating unit ( ) can be installed stably in the nondestructive inspection apparatus ( ) by disposing the heavy molded power supply section ( ) under a target ( ).

Nondestructive inspection apparatus

This invention aims at providing an X-ray apparatus having a stable X-ray output. Since the focus electrode of the X-ray tube of the X-ray apparatus according to this invention maintains a ground potential, the focus diameter of electrons bombarded against a target becomes constant. Hence, the X-ray output emerging from an exit window is stabilized. Since the potential ratio of a cathode to the target is always constant, the electric field distribution between the cathode and the target is stabilized, thereby stabilizing the X-ray output emerging from the exit window.

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Hamamatsu, Japan

Yutaka Ochiai