Hamamatsu-photonics K.k.

Takane Yokoi

Yutaka Ochiai

Tsutomu Nakamura

Masayoshi Ishikawa

Kinji Takase

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

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.

X-ray apparatus

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Hamamatsu, Japan

Takane Yokoi