X-RAY IMAGE TUBE, X-RAY IMAGE TUBE DEVICE AND X-RAY DEVICE

WIPO Patent Application WO/2003/083890

A1

An X-ray image tube capable of providing an image of a proper gray level enhanced in contrast without an increase in X-ray irradiation amount. An X-ray absorbed or scattered by an examination subject emits light at an entry surface formed on the inner side of an entry window (14), the emitted light is then converted into electrons on an photoelectric conversion surface, and electrons are accelerated and focused by a focusing electrode (19) and led toward an anode (20) side. Electrons led toward the anode (20) side are visualized by a phosphor (18) to display an image in an X-ray dose-dependent color on a glass sheet (17) with a brightness and a color according to the distribution of an incident X-ray.

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NOJI TAKASHI (JP)
NITTOH KOICHI (JP)
KONAGAI CHIKARA (JP)

PCT/JP2003/003998

October 09, 2003

March 28, 2003

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TOSHIBA KK (JP)
NOJI TAKASHI (JP)
NITTOH KOICHI (JP)
KONAGAI CHIKARA (JP)

C09K11/78; C09K11/79; C09K11/80; C09K11/81; C09K11/82; C09K11/84; G21K4/00; H01J31/50; (IPC1-7): H01J31/50; H01J29/18; G01T1/00; A61B6/00; C09K11/78; C09K11/84; C09K11/80; C09K11/82; C09K11/63; C09K11/56; C09K11/59; C09K11/62; C09K11/79; C09K11/55; C09K11/68; C09K11/72; C09K11/81

JPS57174842A	1982-10-27
JP2001209142A	2001-08-03
JPH08503573A	1996-04-16

See also references of EP 1489640A4
None

Suzuye, Takehiko c/o SUZUYE & SUZUYE 7-2 (Kasumigaseki 3-chome Chiyoda-ku, Tokyo, JP)

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