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    • 4. 发明专利
    • Transmission type radiation generating device and radiographic apparatus using the same
    • 传输型辐射发生装置和使用其的放射性装置
    • JP2013109902A
    • 2013-06-06
    • JP2011252792
    • 2011-11-18
    • Canon Incキヤノン株式会社
    • OGURA TAKAOAOKI SHUJITAMURA MIKIUEDA KAZUYUKIYANAGISAWA YOSHIHIROSATO YASUENOMURA ICHIROYAMAZAKI KOJI
    • H01J35/08H01J35/16
    • H01J5/18G01N23/04H01J35/12H01J2235/068H01J2235/087
    • PROBLEM TO BE SOLVED: To provide a transmission type radiation generating device which efficiently releases heat generated at a target and ensures a shielding function against unnecessary radiation, and a radiographic apparatus using the same.SOLUTION: A transmission type radiation generating device comprises: an electron source 3; a base plate 11 transmitting radiation; a target 12 which is provided on a surface of the base plate 11 on the side of the electron source 3 and generates the radiation by irradiation with electrons emitted from the electron source 3; a shielding member 13 having radiation passing holes for passing the radiation transmitted the base plate 11, connected to the base plate 11, and provided with at least a front shielding part 9 protruding from the target 12 in a direction away from the electron source 3; and an insulation fluid coming into contact with the front shielding part 9. The shielding member 13 includes a low-melting metal or low-melting alloy 10, which is positioned at least inside the front shielding part 9.
    • 要解决的问题:提供一种有效地释放在目标处产生的热量并确保抵抗不必要的辐射的屏蔽功能的透射型辐射发生装置,以及使用其的射线照相装置。 解决方案:透射型辐射发生装置包括:电子源3; 发射辐射的基板11; 设置在基板11的电子源3一侧的表面上的靶12,通过从电子源3发射的电子照射而产生放射线; 具有辐射通过孔的屏蔽部件13,其通过与基板11连接的透射基板11的辐射,并且设置有至少一个远离电子源3的方向从目标部件12突出的前屏蔽部分9; 以及与前屏蔽部9接触的绝缘流体。屏蔽部件13包括至少位于前屏蔽部9内的低熔点金属或低熔点合金10.权利要求(C )2013,JPO&INPIT