X-RAY TUBE DEVICE, METHOD FOR PRODUCING SAME, AND X-RAY IMAGE DIAGNOSTIC DEVICE

WIPO Patent Application WO/2012/033027

A1

Provided are a long-life x-ray tube device that improves the heat resistance of a recoil electron trap without using expensive oxide-dispersion strengthened copper and is provided with a recoil electron trap that is particularly powerful against cracking and a method for producing the same. Also provided is an x-ray image diagnostic device equipped with that x-ray tube device. To do so, the x-ray tube device is provided with: a cathode that generates an electron beam; an anode target that is disposed facing the cathode and radiates x-rays by being irradiated by the electron beam; a vacuum enclosure that keeps the cathode and anode target in a vacuum atmosphere; and a recoil electron trap that is disposed between the cathode and the anode target and traps recoil electrons recoiling from the anode target. At least part of the recoil electron trap is constituted of a member having a high-melting point, high-strength metal that has a melting point higher than copper embedded in copper.

SUGIYAMA KATSUYA (JP)
AKITA KOJI (JP)
OKAMURA HIDEFUMI (JP)

PCT/JP2011/070078

March 15, 2012

September 04, 2011

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HITACHI MEDICAL CORP (JP)
SUGIYAMA KATSUYA (JP)
AKITA KOJI (JP)
OKAMURA HIDEFUMI (JP)

H01J35/10; H01J35/06; H01J35/16

JP2007149452A	2007-06-14
JP2009272057A	2009-11-19
JP2009272056A	2009-11-19
JP2002352756A	2002-12-06
JP2009081136A	2009-04-16
JP2010080400A	2010-04-08

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