X-ray generator and X-ray imaging apparatus
    1.
    发明授权
    X-ray generator and X-ray imaging apparatus 有权
    X射线发生器和X射线成像装置

    公开(公告)号:US09595415B2

    公开(公告)日:2017-03-14

    申请号:US14241426

    申请日:2012-08-29

    摘要: Provided is an X-ray generator including an electron passage in an electron-passage forming member; and a target on an insulative substrate. The transmission X-ray generator irradiates the target with electrons that have passed through the electron passage to generate X-rays. The target is provided at a central region of the substrate; the electron passage accommodates a secondary-X-ray generating section that generates X-rays by irradiation with electrons reflected from the target; the secondary-X-ray generating section and the target are disposed so that both of X-rays generated by direct irradiation of the target with the electrons and X-rays generated by irradiation of the secondary-X-ray generating section with the electrons reflected from the target are radiated to the outside; and at least part of the peripheral region of the substrate has higher transmittance for the X-rays generated at the secondary-X-ray generating section than the central region of the substrate.

    摘要翻译: 提供一种电子通道形成构件中具有电子通道的X射线发生器, 和绝缘基板上的靶。 透射X射线发生器用已经通过电子通道的电子照射靶,产生X射线。 靶设在基板的中心区域; 电子通道容纳通过从靶标反射的电子的照射产生X射线的次X射线产生部分; 二次X射线产生部和靶被配置为使得通过用电子直接照射目标而产生的X射线和通过二次X射线产生部的照射而产生的X射线被反射 从目标射到外面; 并且衬底的周边区域的至少一部分对于在二次X射线产生部分处产生的X射线比衬底的中心区域具有更高的透射率。

    X-ray generation apparatus and X-ray radiographic apparatus
    2.
    发明授权
    X-ray generation apparatus and X-ray radiographic apparatus 有权
    X射线产生装置和X射线摄影装置

    公开(公告)号:US09425021B2

    公开(公告)日:2016-08-23

    申请号:US14241817

    申请日:2012-08-29

    摘要: In an X-ray generation apparatus of transmission type including an electron emission source, and a target generating an X-ray with collision of electrons emitted from the electron emission source against the target, the X-ray generation apparatus further includes a secondary X-ray generation portion generating an X-ray with collision of electrons reflected by the target against the secondary X-ray generation portion, and the secondary X-ray generation portion and the target are arranged such that the X-ray generated with the direct collision of the electrons against the target and the X-ray generated with the collision of the electrons reflected by the target against the secondary X-ray generation portion are both radiated to an outside. X-ray generation efficiency is increased by effectively utilizing the electrons reflected by the target.

    摘要翻译: 在包括电子发射源的透射型的X射线产生装置和产生从电子发射源发射的电子与靶相撞的X射线的靶上,X射线产生装置还包括二次X射线 射线产生部分,产生与目标反射的电子相对于次X射线产生部分的碰撞的X射线,并且次X射线产生部分和靶部被布置成使得由直接碰撞产生的X射线 靠着目标物的电子以及由靶子反射的二次X射线产生部分的碰撞产生的X射线都被辐射到外部。 通过有效地利用目标反射的电子来提高X射线产生效率。

    Radiation generating apparatus and radiation imaging apparatus
    3.
    发明授权
    Radiation generating apparatus and radiation imaging apparatus 有权
    辐射发生装置和放射线成像装置

    公开(公告)号:US09058958B2

    公开(公告)日:2015-06-16

    申请号:US13539871

    申请日:2012-07-02

    IPC分类号: H01J35/18 H01J35/04 H01J35/16

    摘要: The present invention relates to a radiation generating apparatus which includes an envelope provided with a first window through which radiation is transmitted, a radiation tube housed in the envelope and provided with a second window through which the radiation is transmitted, the second window being located at a position opposite the first window, and an insulating fluid adapted to fill the space between the inner wall of the envelope and the radiation tube. Plural plates are arranged side by side between the first window including its periphery and the second window including its periphery, and overlapping one another with gaps between them. The gaps are formed among the plates, and thereby the withstanding voltage between the first window and second window is made larger.

    摘要翻译: 辐射发生装置技术领域本发明涉及一种辐射发生装置,其包括设置有透射辐射的第一窗口的封套,容纳在封套中的辐射管,并设置有第二窗口,第二窗口通过该第二窗口辐射,第二窗口位于 与第一窗口相对的位置,以及适于填充外壳的内壁和辐射管之间的空间的绝缘流体。 多个板并排布置在包括其周边的第一窗口和包括其周边的第二窗口之间并且彼此重叠并且在它们之间具有间隙。 在板之间形成间隙,从而使第一窗和第二窗之间的耐压更大。

    X-ray generating apparatus and method of driving X-ray tube
    4.
    发明授权
    X-ray generating apparatus and method of driving X-ray tube 有权
    X射线发生装置和X射线管的驱动方法

    公开(公告)号:US08774364B2

    公开(公告)日:2014-07-08

    申请号:US13286352

    申请日:2011-11-01

    IPC分类号: H05G1/12

    CPC分类号: H05G1/12 H01J35/045 H05G1/20

    摘要: An inverter circuit is shared by respective drive circuits that supply a predetermined voltage to a lens electrode and a grid electrode, or to a lens electrode and a cathode electrode. A DC voltage obtained by full-wave rectifying a pulse train output from the inverter circuit is supplied to the lens electrode, a DC voltage obtained by half-wave rectifying a pulse train output from the inverter circuit is supplied to the grid electrode or cathode electrode. At times of a first operation and a last operation of the inverter circuit during a period of generating X-rays, operations of the inverter circuit are controlled such that a trans circuit outputs a negative polarity voltage to the full-wave rectifying circuit and the half-wave rectifying circuit, respectively.

    摘要翻译: 逆变器电路由向透镜电极和栅电极提供预定电压的相应驱动电路或透镜电极和阴极电极共享。 通过对从逆变器电路输出的脉冲串进行全波整流而获得的直流电压被提供给透镜电极,通过对从逆变器电路输出的脉冲串进行半波整流获得的直流电压被提供给栅电极或阴极电极 。 在产生X射线的时段期间的逆变器电路的第一次操作和最后一次操作时,控制逆变器电路的操作,使得反相电路向全波整流电路输出负极性电压,半 波整流电路。

    RADIATION GENERATING APPARATUS AND RADIATION IMAGING APPARATUS
    5.
    发明申请
    RADIATION GENERATING APPARATUS AND RADIATION IMAGING APPARATUS 有权
    辐射发生装置和放射成像装置

    公开(公告)号:US20140140486A1

    公开(公告)日:2014-05-22

    申请号:US14233172

    申请日:2012-07-11

    IPC分类号: H01J35/12 H01J35/16

    摘要: A radiation generating apparatus of the present invention includes an envelope 1 including a first window 2 allowing radiation to pass; a radiation tube 10 that is accommodated in the envelope 1, and includes a second window 15 allowing radiation to pass, at a position opposite to the first window 2; a radiation passing hole 21 that is thermally connected to the second window 15 and communicates with the second window 15; and a radiation shielding member 16 protruding from the second window 15 toward the first window 2. In this apparatus, a thermal conducting member 17 having a higher thermal conductivity than the radiation shielding member 16 is connected to an outer periphery of the protruding portion of the radiation shielding member 16. The simple configuration can shield unnecessary radiation, and cool the target, while facilitating reduction in weight.

    摘要翻译: 本发明的辐射发生装置包括:包含允许辐射通过的第一窗口2的信封1; 容纳在外壳1中的辐射管10,并且在与第一窗口2相对的位置处包括允许辐射通过的第二窗口15; 与第二窗口15热连接并与第二窗口15连通的辐射通过孔21; 以及从第二窗口15朝向第一窗口2突出的辐射屏蔽构件16.在该装置中,具有比辐射屏蔽构件16更高的热导率的导热构件17连接到第一窗口15的突出部分的外周边 辐射屏蔽构件16.简单的构造可以屏蔽不必要的辐射,并且冷却目标,同时有利于减轻重量。

    X-RAY GENERATOR AND X-RAY IMAGING APPARATUS INCLUDING THE SAME
    6.
    发明申请
    X-RAY GENERATOR AND X-RAY IMAGING APPARATUS INCLUDING THE SAME 有权
    X射线发生器和X射线成像装置,包括它们

    公开(公告)号:US20140029725A1

    公开(公告)日:2014-01-30

    申请号:US14111512

    申请日:2012-04-06

    IPC分类号: H01J35/16

    摘要: Provided is an X-ray generator comprising an X-ray tube including a cylindrical body; an electron source in the body; a target at an end of the X-ray tube facing the electron source, the target generating X-rays by irradiation with electrons; a container in which the X-ray tube is arranged; insulating liquid filled between the X-ray tube and the container; and a holding member holding the body of the X-ray tube in the container, with a channel for the insulating liquid around the X-ray tube. The distance between the holding member and the end face at the end of the body in the direction in which the electron source and the target face is twice or more as large as the minimum width of the channel that is in contact with the outer surface of the X-ray tube at the end face side with respect to the holding member. This allows heat in the target to be quickly radiated, thus allowing X-rays to be generated stably for a long time.

    摘要翻译: 本发明提供一种X射线发生器,其包括:包括圆柱体的X射线管; 身体中的电子源; 面向电子源的X射线管的端部的靶,靶通过电子照射而产生X射线; 设置有X射线管的容器; 填充在X射线管和容器之间的绝缘液体; 以及保持构件,其将X射线管的主体保持在容器中,具有用于X射线管周围的绝缘液体的通道。 在电子源和目标面的方向上的本体的端部处的保持构件与端面之间的距离为与外表面接触的通道的最小宽度的两倍或更多 相对于保持部件的端面侧的X射线管。 这样可以快速地辐射靶内的热量,能够长时间稳定地生成X射线。

    RADIATION GENERATING APPARATUS AND RADIATION IMAGING APPARATUS
    7.
    发明申请
    RADIATION GENERATING APPARATUS AND RADIATION IMAGING APPARATUS 有权
    辐射发生装置和放射成像装置

    公开(公告)号:US20130230143A1

    公开(公告)日:2013-09-05

    申请号:US13884339

    申请日:2011-11-08

    IPC分类号: H01J35/02

    摘要: A radiation generating apparatus 31 comprises: a radiation generating tube 11; a holding container 12 holding the radiation generating tube; and a cooling medium 33 between the holding container and the radiation generating tube, wherein the radiation generating tube includes an envelope 14 including an aperture 14a, an electron emitting source arranged in the envelope, a target 18, 19 arranged so as to face the electron emitting source, for generating a radiation responsive to an irradiation with an electron beam emitted from the electron emitting source, and a shield 20 of a tubular shape, for holding the target by an inner wall of the tubular shape and shielding a part of the radiation emitted from the target, the shield is arranged so as to protrude outward of the envelope so that the target is positioned on an outer side of the aperture, and the cooling medium contacts at least a part of the shield.

    摘要翻译: 辐射发生装置31包括:辐射发生管11; 保持容器12,其保持放射线生成管; 以及在保持容器和辐射发生管之间的冷却介质33,其中辐射发生管包括包含孔14a的外壳14,布置在外壳中的电子发射源,布置成面向电子的靶18,19 发射源,用于产生响应于从电子发射源发射的电子束的照射的辐射;以及管状护罩20,用于通过管状内壁保持靶,并屏蔽辐射的一部分 从所述目标发射的所述屏蔽层被布置成从所述外壳向外突出,使得所述目标位于所述孔的外侧,并且所述冷却介质与所述屏蔽的至少一部分接触。

    RADIATION GENERATING APPARATUS AND RADIATION IMAGING APPARATUS
    9.
    发明申请
    RADIATION GENERATING APPARATUS AND RADIATION IMAGING APPARATUS 有权
    辐射发生装置和放射成像装置

    公开(公告)号:US20130016810A1

    公开(公告)日:2013-01-17

    申请号:US13483193

    申请日:2012-05-30

    IPC分类号: H01J35/18 H05G1/32 G01N23/04

    摘要: In a radiation imaging apparatus which comprises an envelope which has a first window for transmitting a radiation and is filled with an insulating liquid, a radiation tube in the envelope which has, at a position facing the first window, a second window for transmitting the radiation, and a shielding member, a solid insulating member is arranged between the shielding member and the inner wall of the envelope, an opening is formed at a position on the insulating member corresponding to the first window, and a shortest distance from the shielding member to the first window or the inner wall of the envelope through the opening of the insulating member without the insulating member is made longer than a shortest distance from the shielding member to the first window or the inner wall of the envelope through the insulating member, thereby improving withstand voltage performance without reducing an radiation amount.

    摘要翻译: 在包括具有用于传输辐射的第一窗口并且填充有绝缘液体的封套的辐射成像设备中,在所述封套中的辐射管在与所述第一窗口相对的位置处具有用于传输所述辐射的第二窗口 以及屏蔽部件,在所述屏蔽部件与所述外壳的内壁之间配置有固体绝缘部件,在与所述第一窗口对应的所述绝缘部件上的位置形成开口,并且与所述屏蔽部件的距离最短 通过绝缘构件的绝缘构件的开口的封套的第一窗口或内壁通过绝缘构件比从屏蔽构件到封套的第一窗口或内壁的最短距离更长,从而改善 耐压性能不降低辐射量。