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    • 1. 发明专利
    • X-ray generator, and control method of x-ray generator
    • X射线发生器和X射线发生器的控制方法
    • JP2013026070A
    • 2013-02-04
    • JP2011160857
    • 2011-07-22
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • MIYAMOTO AKIHIROKAMINO YUICHIROISHII SHINYAAOI TATSUFUMIWATABE SATOSHI
    • H05H9/00H05G2/00
    • H01J35/025H01J35/14H01J2235/087H05H9/044
    • PROBLEM TO BE SOLVED: To allow the suppression of the fluctuation in the quantity of generated X rays even if an electron beam emitted by a linear accelerator changes in energy.SOLUTION: An X-ray generator 10 comprises: an electron gun 12 operable to generate an electron beam; a linear accelerator 14 operable to accelerate, by means of micro waves, the electron beam generated by the electron gun 12; an X-ray target 16 which generates X rays when being irradiated with the electron beam accelerated by the linear accelerator 14; a micro wave generator operable to generate the micro waves introduced by the linear accelerator 14; and a pulse modulator operable to control the micro wave generator so as to change the electric power of the micro waves. The linear accelerator 14 has a plurality of buncher cavities 40 and therefore, even if an electron which deviates from the acceleration phase as a result of the reduction of the micro wave electric power arises, the electron can be accelerated with an acceleration phase in a subsequent period of time and as such, the reduction in the intensity of the electron beam to be emitted is suppressed.
    • 要解决的问题:即使由线性加速器发射的电子束改变能量,也可以抑制所产生的X射线量的波动。 解决方案:X射线发生器10包括:可操作以产生电子束的电子枪12; 线性加速器14,其可操作以通过微波加速由电子枪12产生的电子束; 当被线性加速器14加速的电子束照射时产生X射线的X射线靶16; 微波发生器,其可操作以产生由所述直线加速器14引入的微波; 以及脉冲调制器,其可操作以控制微波发生器,以便改变微波的电功率。 线性加速器14具有多个聚束腔40,因此即使由于微波电力的减小而偏离加速相的电子,电子可以在随后的加速阶段加速 因此抑制了要发射的电子束的强度的降低。 版权所有(C)2013,JPO&INPIT
    • 2. 发明专利
    • X-ray irradiation apparatus
    • X射线辐照装置
    • JP2009238742A
    • 2009-10-15
    • JP2009041025
    • 2009-02-24
    • Jobu:Kk株式会社ジョブ
    • YAMAMOTO KEIICHIRO
    • H05G1/06
    • H05G1/06H01J35/025H05G1/10
    • PROBLEM TO BE SOLVED: To provide an X-ray irradiation apparatus which can reduce an occurrence of discharging due to a potential difference in an X-ray irradiation apparatus and simultaneously has a smaller size and lighter weight.
      SOLUTION: In the X-ray irradiation apparatus 1 provided with an X-ray tube 11 and a high voltage generating unit 2 in a case 18 and an insulation oil 13 filled in the case 18, the high voltage generating unit 2 is provided with a plurality of voltage amplifier units 21 which are formed in a ring shape and electrically connected, and there are arranged a positive pole 14 and a negative pole 15 of the X-ray tube 11 inserted into hollow portions of the voltage amplifier units 21.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:提供一种能够减少由于X射线照射装置的电位差引起的放电发生的X射线照射装置,同时具有较小的尺寸和较轻的重量。 解决方案:在设置有壳体18中的X射线管11和高电压产生单元2的X射线照射设备1和填充在壳体18中的绝缘油13时,高电压产生单元2是 设置有形成为环形并电连接的多个电压放大器单元21,并且布置有插入电压放大器单元21的中空部分中的X射线管11的正极14和负极15 。版权所有(C)2010,JPO&INPIT
    • 6. 发明专利
    • スパークギャップ
    • 火花间隙
    • JP2015526838A
    • 2015-09-10
    • JP2015516483
    • 2012-06-14
    • シーメンス アクティエンゲゼルシャフトシーメンス アクティエンゲゼルシャフト
    • オリヴァー・ハイトティモシー・ヒューズジェニファー・ジルトル
    • H05G1/00H01T2/00
    • H01J35/22H01J35/025H05G1/08
    • 本発明はカソード(12)とアノード(11)を有するスパークギャップに関する。本発明によれば、前記スパークギャップは中間部分(13)によって二つの部分スパークギャップ、すなわち高圧スパークギャップ(14)と実用スパークギャップ(15)に区分されている。前記実用スパークギャップ(15)は例えば単色X線(26)を発生させるために用いられ得る。所定の切換え時刻を保証するために、高圧スパークギャップ(14)が用いられ、当該高圧スパークギャップ(14)はまず確定的に切り換えられる。当該切り換えにより、前記中間部分において高いポテンシャルが使用に供され、それにより、前記実用スパークギャップ(15)は前記高圧スパークギャップ(14)の切り換えの際、実質的な遅延なしに、電圧が明らかに過剰に増大した状態で同様に確定的に切り換えられ得る。
    • 本发明离开阴极(12)阳极门(11)有禾火花隙Nikansuru。 根据本发明,火花间隙被划分两个部分火花间隙,即在实践中,火花隙(15)和所述高压火花隙(14)的中间部分(13)。 实际火花隙(15)可以被用于生成例如单色X射线(26)。 为了确保规定的切换时间,高电压火花隙(14)被使用时,高压火花隙(14)被第一开关确定性。 通过切换,在所述中间部分中的高电位投入使用,从而当实际火花隙(15)的高压火花隙(14)切换,而无需实质性的延迟,表观电压 它可能过度同样确定性地以增大的状态切换。
    • 7. 发明专利
    • X-ray ct apparatus
    • X射线CT装置
    • JP2014064756A
    • 2014-04-17
    • JP2012212135
    • 2012-09-26
    • Toshiba Corp株式会社東芝Toshiba Medical Systems Corp東芝メディカルシステムズ株式会社
    • OIKAWA DAIZOISHIYAMA FUMIO
    • A61B6/03
    • H01J35/025A61B6/032A61B6/405A61B6/4241A61B6/54A61B6/542A61B6/58G05F1/10G05F1/565H01J37/241H01J37/248H01J37/3023H01J2237/2487H05G1/32H05G1/46
    • PROBLEM TO BE SOLVED: To provide an X-ray CT apparatus in which a photon energy distribution of emitted X-rays is flattened.SOLUTION: The X-ray CT apparatus includes an X-ray tube, a detector, a data collection part, a tube voltage generation part and a grid control part. The X-ray tube emits X-rays so as to irradiate a subject with the X-rays. The detector has a plurality of detection elements detecting photons which constitute the X-rays. The data collection part counts the number of the detected photons and collects projection data based on the result of the count. The tube voltage generation part applies a tube voltage to the X-ray tube while changing it within a prescribed cycle. The grid control part controls the grid voltage to reduce tube current when the tube voltage is increased, and controls the grid voltage to increase the tube current when the tube voltage is reduced. The X-ray CT apparatus flattens photon energy distribution of X-rays emitted from the X-ray tube.
    • 要解决的问题:提供其中发射的X射线的光子能量分布变平的X射线CT装置。解决方案:X射线CT装置包括X射线管,检测器,数据收集部分, 管电压产生部分和电网控制部分。 X射线管发射X射线,以便用X射线照射被摄体。 检测器具有检测构成X射线的光子的多个检测元件。 数据采集​​部分对检测到的光子的数量进行计数,并根据计数结果收集投影数据。 管电压产生部件在规定的周期内变更时,向X射线管施加管电压。 电网控制部分控制电网电压以减小管电压增加时的管电流,并且当管电压降低时控制电网电压以增加管电流。 X射线CT装置平滑X射线管发射的X射线的光子能量分布。
    • 9. 发明专利
    • Radiation generating tube and radiation generating device using the same
    • 辐射发生管和使用该辐射发生器的辐射发生装置
    • JP2013101879A
    • 2013-05-23
    • JP2011245793
    • 2011-11-09
    • Canon Incキヤノン株式会社
    • YAMAZAKI KOJISATO YASUEUEDA KAZUYUKI
    • H01J35/16
    • H01J35/16G01N23/02H01J5/26H01J9/26H01J9/32H01J9/36H01J9/395H01J35/025H01J35/20H01J2209/18H01J2209/26H01J2235/084
    • PROBLEM TO BE SOLVED: To provide a radiation generating tube that suppresses an electric field concentration factor which may be generated at a junction between a cathode or anode and a dielectric tubular member when a conductive joining material is applied to the junction, thereby achieving a high voltage-withstanding characteristic, and a radiation generating device using the same.SOLUTION: A radiation generating tube comprises: an envelope including a dielectric tubular member having at least two opening ends, a cathode connected to one of the opening ends of the tubular member, an anode connected to the other of the opening ends of the tubular member; an electron emission source connected to the cathode; and a target connected to the anode. An internal space of the envelope has a negative pressure relative to an outer space. In the radiation generating tube, at least either one of the cathode and the anode, and the envelope are joined to each other via a conductive joining material, and a junction joined via the joining material is coated with a dielectric layer.
    • 要解决的问题:提供一种辐射生成管,其抑制当将导电性接合材料施加到接合部时在阴极或阳极与电介质管状部件之间的接合处产生的电场集中系数,由此 实现高耐压特性,以及使用该特性的放射线产生装置。 解决方案:辐射产生管包括:包体,其包括具有至少两个开口端的介电管状构件,连接到管状构件的开口端中的一个的阴极,连接到管状构件的开口端中的另一个的阳极 管状构件; 连接到阴极的电子发射源; 和连接到阳极的靶。 外壳的内部空间相对于外部空间具有负压力。 在辐射发生管中,阴极和阳极中的至少任一个以及外壳通过导电接合材料彼此接合,并且通过接合材料接合的接合层涂覆有介电层。 版权所有(C)2013,JPO&INPIT