公开(公告)号：US20100116993A1

公开(公告)日：2010-05-13

申请号：US12597075

申请日：2008-04-24

申请人： Koichi Nittoh ,  Kiyoharu Tsunokawa ,  Chikara Konagai

发明人： Koichi Nittoh ,  Kiyoharu Tsunokawa ,  Chikara Konagai

IPC分类号： G01T1/20 ,  G01N23/04 ,  G01T3/06

CPC分类号： G01T3/06 ,  H01J31/50 ,  H01J31/502 ,  H01J31/508 ,  H01J31/56 ,  H01J2231/50036 ,  H01J2231/50042 ,  H01J2231/50089 ,  H01J2231/5053

摘要： A neutron reactant layer (220) is directly coated inside an aluminum substrate (200) of an incident window (20). A first scintillator layer (201) is formed inside the neutron reactant layer 220, and a photoelectric conversion layer (202) is formed inside the first scintillator layer (201). A neutron reactant layer (210) is composed of enriched boron carbide (10B4C), and generates α-rays from neutrons by a (n, α) reaction in enriched boron. The first scintillator layer (201) is light-emitted by this α-rays.

摘要翻译： 中子反应物层（220）直接涂覆在入射窗（20）的铝基板（200）内。 第一闪烁体层（201）形成在中子反应物层220内部，并且在第一闪烁体层（201）的内部形成光电转换层（202）。 中子反应物层（210）由富碳碳化硼（10B4C）组成，并通过在富含硼中的（n，α）反应从中子产生α-射线。 第一闪烁体层（201）通过该α射线发光。

公开(公告)号：US07053382B2

公开(公告)日：2006-05-30

申请号：US10795414

申请日：2004-03-09

申请人： Takashi Noji ,  Koichi Nittoh ,  Chikara Konagai

发明人： Takashi Noji ,  Koichi Nittoh ,  Chikara Konagai

IPC分类号： H01J31/50 ,  G01T1/16

CPC分类号： H01J31/56 ,  C09K11/684 ,  C09K11/7733 ,  C09K11/7771 ,  C09K11/7789 ,  G21K4/00 ,  G21K2004/06 ,  H01J31/501 ,  H01J2231/50036

摘要： An object of the present invention is to provide an X-ray image tube which enables acquisition of an image of a proper density by increasing contrast without increasing an irradiation dose of X-rays. The X-rays absorbed or scattered through a subject emit light on an input surface formed in an input window, and the light is further converted into electrons on a photoelectric surface which converts the light into the electrons, accelerated and focused by a focusing electrode, and then guided to an anode side. The electrons guided to the anode side are made visible by a fluorescent substance, and an image of a color is projected on a glass plate with a luminance and a color based on a distribution of the incident X-rays in accordance with the dose of the X-rays.

摘要翻译： 本发明的目的是提供一种X射线图像管，其能够通过增加对比度而不增加X射线的照射剂量来获取适当密度的图像。 通过被摄体吸收或散射的X射线在形成在输入窗口中的输入面上发光，并且光在光电表面上进一步转换为电子，该光电表面将光转换成电子，由聚焦电极加速和聚焦， 然后引导到阳极侧。 引导到阳极侧的电子通过荧光物质可见，并且根据入射的X射线的分布，将颜色的图像以基于入射X射线的分布的亮度和颜色投影在玻璃板上 X光片。

公开(公告)号：US6086252A

公开(公告)日：2000-07-11

申请号：US404873

申请日：1999-09-27

申请人： Peter Quadflieg ,  Gerhard Spekowius

发明人： Peter Quadflieg ,  Gerhard Spekowius

IPC分类号： A61B6/00 ,  G01T1/24 ,  H01J31/50 ,  H04N3/32 ,  H04N5/217 ,  H04N5/325 ,  H05G1/64 ,  H01J31/00

CPC分类号： H01J31/50 ,  G01T1/28 ,  H01J31/501 ,  H04N3/32 ,  H04N5/217 ,  H04N5/325 ,  H05G1/64 ,  H01J2231/50036

摘要： An X-ray image intensifier (1) includes an entrance screen (2) with a photocathode (3). A television camera (15) is optically coupled to the exit window (12) of the X-ray image intensifier. The X-ray image intensifier with the television camera derives a primary image signal form an X-ray image on the entrance screen. The X-ray image intensifier is provided with a radiation source (4), such as flashlights or LEDs, for irradiating the photocathode (3). Irradiation of the photocathode produces a light intensity distribution on the exit window wherefrom the television camera derives a control signal. Correction numbers are derived from the signal levels of the control signal. These correction numbers are employed for correcting the primary image signal.

摘要翻译： X射线图像增强器（1）包括具有光电阴极（3）的入口屏（2）。 电视摄像机（15）光耦合到X射线图像增强器的出射窗（12）。 具有电视摄像机的X射线图像增强器在入口屏幕上产生形成X射线图像的主要图像信号。 X射线图像增强器设置有用于照射光电阴极（3）的辐射源（4），例如手电筒或LED。 光电阴极的照射在出口窗口产生光强度分布，电视摄像机从那里导出控制信号。 校正号码来自控制信号的信号电平。 这些校正数用于校正主图像信号。

公开(公告)号：US5491331A

公开(公告)日：1996-02-13

申请号：US232839

申请日：1994-04-25

申请人： Charles Armentrout

发明人： Charles Armentrout

IPC分类号： H01J31/50 ,  H01J40/14

CPC分类号： H01J31/505 ,  H01J2231/50036 ,  H01J2231/50063

摘要： A soft x-ray imaging device is disclosed having a housing defining a housing chamber. An optic post having a planar surface is secured to the housing so that the planar surface is positioned within the housing chamber. A phosphorus coating is applied to the planar surface of the post for converting electrons to visible light. A microchannel plate for converting x-rays to electrons is secured within the housing chamber so that the microchannel plate is spaced from and parallel to the planar surface of the optic post. An opening is formed in the housing in alignment with the microchannel plate and this opening is sealingly closed by a window which is made of a material substantially transparent to soft x-rays. This window also creates a vacuum tight housing chamber.

摘要翻译： 公开了一种软X射线成像装置，其具有限定容纳室的壳体。 具有平坦表面的光学柱固定到壳体，使得平坦表面位于壳体室内。 将磷涂层施加到柱的平面表面，以将电子转换成可见光。 用于将x射线转换成电子的微通道板被固定在壳体室内，使得微通道板与光学柱的平坦表面间隔开并平行。 在壳体中形成有与微通道板对准的开口，并且该开口通过由基本上对软X射线透明的材料制成的窗口密封地封闭。 该窗口还创建了一个真空密封的容器室。

公开(公告)号：US4870473A

公开(公告)日：1989-09-26

申请号：US325039

申请日：1989-03-16

申请人： Fumio Sugimori

发明人： Fumio Sugimori

IPC分类号： H01J29/87 ,  H01J31/50

CPC分类号： H01J29/87 ,  H01J31/50 ,  H01J2231/50036 ,  H01J2231/50063

摘要： This invention relates to an X-ray image intensifier for intensifying and reproducing an image of an object, by use of X-ray and the like. An evacuated envelope of the image intensifier is constituted by a cylindrical glass body having an open end and a closed end, an X-ray input window covering the open end of the body, and a support ring for providing a hermetical seal between the body and the window at the open end. The window is constituted by a domed portion which expands outwardly from the evacuated envelope, a flange portion which is formed around the peripheral edge of the window and has a flat bonding surface which extends perpendicular to the axis of the evacuated envelope, with a curved portion forming a transitional area between the domed and flange portions. The support ring is bonded to the flange portion, at the flat bonding surface, and has a smaller inner diameter than the outer diameter of the curved portion. Further, the inner end of the ring member is located inward of the inner end of the flange portion.

摘要翻译： 本发明涉及通过使用X射线等来增强和再现物体的图像的X射线图像增强器。 图像增强器的抽真空的外壳由具有开口端和封闭端的圆柱形玻璃体，覆盖主体的开口端的X射线输入窗和用于在主体和主体之间提供气密密封的支撑环构成， 窗户在开放的一端。 窗口由从真空外壳向外膨胀的圆顶部分构成，凸缘部分形成在窗口的周缘周围，并且具有垂直于抽真空的外壳的轴线延伸的平坦的接合表面，弯曲部分 在圆顶和凸缘部分之间形成过渡区域。 支撑环在平坦的接合表面处接合到凸缘部分，并且具有比弯曲部分的外径更小的内径。 此外，环构件的内端位于凸缘部的内端的内侧。

公开(公告)号：US4645971A

公开(公告)日：1987-02-24

申请号：US603244

申请日：1984-04-23

申请人： Jean Ricodeau

发明人： Jean Ricodeau

IPC分类号： H01J29/38 ,  H01J31/50 ,  H01J40/18

CPC分类号： H01J31/50 ,  H01J29/385 ,  H01J2231/50036 ,  H01J2231/50063

摘要： The thickness of the layer of luminescent material on the edges of the screen at approximately 1/10.degree. from the edge of the image field is approximately 15 to 25% smaller than its thickness at the center of the screen. Thus the length of the x-ray path within the luminescent material is substantially the same irrespective of the angle of incidence of the x-rays on the screen and, when the x-ray energy varies, the sensitivity at all points of the screen varies substantially in the same manner. The screen in accordance with the invention is primarily employed in digital radiology systems in which the same image is produced several times by utilizing different x-ray energies.

摘要翻译： 距离图像边缘大约1/10°的屏幕边缘上的发光材料层的厚度比其在屏幕中心处的厚度小约15至25％。 因此，不管X射线在屏幕上的入射角度如何，发光材料内的X射线路径的长度基本相同，并且当x射线能量变化时，屏幕的所有点的灵敏度变化 基本上以相同的方式。 根据本发明的屏幕主要用于数字放射系统，其中通过利用不同的x射线能量多次产生相同的图像。

公开(公告)号：US4001618A

公开(公告)日：1977-01-04

申请号：US630652

申请日：1975-11-10

申请人： Paul Warren Kaseman

发明人： Paul Warren Kaseman

IPC分类号： H01J29/62 ,  H01J31/50 ,  H01J39/04

CPC分类号： H01J31/50 ,  H01J29/62 ,  H01J2231/50036 ,  H01J2231/50063

摘要： An electrostatic field shaping electrode is mounted external to an image intensifier tube in proximate spaced-apart aligned coaxial relation to an insulating envelope wall portion which is exposed to an internal electron accelerating cavity. The field shaping electrode may be employed during the operation of the tube for substantially preventing electron bombardment of the exposed insulating wall portion and for avoiding spurious output signals resulting from the generation of positive ions by that electron bombardment.

公开(公告)号：US3967123A

公开(公告)日：1976-06-29

申请号：US484077

申请日：1974-06-28

申请人： Hendrik Gerardus Deylius ,  Jan Frederik Lammers ,  Antonius Paulus Notenboom

发明人： Hendrik Gerardus Deylius ,  Jan Frederik Lammers ,  Antonius Paulus Notenboom

IPC分类号： A61B6/00 ,  H01J31/50 ,  H05G1/64

CPC分类号： H01J31/50 ,  H01J2231/50036

摘要： For coupling optical windows, in particular two fiberoptics windows, a diaphragm construction is used. This ensures a homogeneous pressure distribution over the window areas and prevents sliding or tilting movements of the windows. By reducing the weight of the components to be supported by the coupling to a minimum the elastic pressure to be exerted by the diaphragm construction can be restricted.

摘要翻译： 对于耦合光学窗口，特别是两个光纤窗口，使用隔膜结构。 这确保在窗口区域上均匀的压力分布，并防止窗户的滑动或倾斜运动。 通过将由联轴器支撑的部件的重量减小到最小，可以限制由隔膜结构施加的弹性压力。

公开(公告)号：US3809889A

公开(公告)日：1974-05-07

申请号：US31917672

申请日：1972-12-29

申请人： GEN ELECTRIC

发明人： MCBROOM R

IPC分类号： H01J29/00 ,  H01J31/50

CPC分类号： H01J31/50 ,  H01J29/003 ,  H01J2229/003 ,  H01J2231/50036 ,  H01J2231/50063 ,  H01J2231/5056

摘要： The earth''s magnetic field influences the electrons emitted from the photocathode of a radiation image intensifier tube such that the optical image formed on the output screen of the tube is often distorted and rotated. The invention involves locating an electromagnet coil in the vicinity of the photocathode of the image tube where emitted electron energy is low, to nullify the effects of the earth''s magnetic field. Means are provided for adjusting the field strength of the coil for various orientations of the image tube.

摘要翻译： 地球的磁场影响从辐射图像增强管的光电阴极发射的电子，使得形成在管的输出屏幕上的光学图像经常变形和旋转。 本发明涉及在发射电子能量较低的图像管的光电阴极附近定位电磁线圈，以消除地球磁场的影响。 提供了用于调整用于图像管的各种取向的线圈的场强的装置。

公开(公告)号：US3806756A

公开(公告)日：1974-04-23

申请号：US29815772

申请日：1972-10-16

申请人： NASA

发明人： JOHNSON C ,  LOW G ,  HALLAM K

IPC分类号： H01J31/26 ,  H01J31/50

CPC分类号： H01J31/50 ,  H01J31/26 ,  H01J2231/50015 ,  H01J2231/50036 ,  H01J2231/5056

摘要： An optical image is projected onto a planar surface of a photocathode that derives an electron beam replica of the image. A target electrode displaced relative to the photocathode so that it does not obstruct the optical image includes a planar surface for receiving and deriving an accurate replica of the electron beam image. The two planar surfaces are parallel. The electron beam image is focused on the target electrode by providing throughout a region that extends between the planar surfaces of the photocathode and receiving electrode, constant, homogeneous d.c. electric and magnetic fields that are canted relative to each other. The electric field extends in a direction perpendicular to the planar surfaces while the magnetic field extends along a straight line that intersects the photocathode and target electrode at an acute angle.

摘要翻译： 将光学图像投影到导出图像的电子束复制品的光电阴极的平面表面上。 相对于光电阴极移动的目标电极使得其不阻碍光学图像包括用于接收和导出电子束图像的精确复制品的平面表面。 两个平面是平行的。 电子束图像通过在光电阴极的平面表面和接收电极之间延伸的区域提供聚焦在目标电极上，恒定的，均匀的直流电。 相对于彼此倾斜的电场和磁场。 电场沿垂直于平面的方向延伸，同时磁场沿着与光电阴极和目标电极成锐角相交的直线延伸。