公开(公告)号：US4346330A

公开(公告)日：1982-08-24

申请号：US140390

申请日：1980-04-14

Applicant: Chunghsin Lee ,  Peter E. Oettinger

Inventor： Chunghsin Lee ,  Peter E. Oettinger

IPC: H01J37/075 ,  H01J3/02 ,  H01J17/52 ,  H01J35/00 ,  H01J35/06 ,  H01J37/06 ,  H03K17/52 ,  H03K17/78 ,  H01J45/00

CPC classification number: H03K17/78 ,  H01J17/52 ,  H01J3/024 ,  H03K17/52

Abstract: Apparatus is disclosed for generating high density pulses of electrons thermionically. The apparatus includes a metallic target maintained within a low pressure cesium vapor atmosphere. A laser rapidly heats the cesiated target surface to a high temperature in a time short compared with the residence time of cesium atoms adsorbed on the target surface. This rapid surface heating in combination with the adsorbed cesium atoms emits copious quantities of electrons forming a high current density pulse.

Abstract translation: 公开了用于产生电子的高密度电子脉冲的装置。 该装置包括保持在低压铯蒸汽气氛中的金属靶。 与吸附在目标表面上的铯原子的停留时间相比，激光在短时间内快速地将澄清的目标表面加热到高温。 这种与吸附的铯原子组合的快速表面加热发射形成高电流密度脉冲的大量电子。

公开(公告)号：US4327293A

公开(公告)日：1982-04-27

申请号：US143156

申请日：1980-04-23

Applicant: Leonhard Taumann

Inventor： Leonhard Taumann

IPC: G21K1/00 ,  G21K1/02 ,  G21K3/00 ,  G21K5/02 ,  G21K5/08 ,  H05H7/12 ,  H01J35/00

CPC classification number: G21K1/02

Abstract: The invention relates to a radio therapy apparatus comprising an electron accelerator having a target and a collimator for limiting the X-ray cone. In the use of such electron accelerators, the radiation load of the patient is increased in an undesirable manner by neutrons in addition to the therapeutically desired roentgen quanta. To reduce the neutron level the invention provides that the edge zone of the collimator facing the target is made of a material of low effective cross-section for (gamma, n) processes. The dimension of this edge zone material approximately corresponds to the half-value depth of the X radiation in this material.

Abstract translation: 本发明涉及包括具有靶的电子加速器和用于限制X射线锥体的准直器的放射治疗装置。 在使用这种电子加速器时，除了治疗期望的量子之外，患者的辐射负荷以不期望的方式被中子增加。 为了减少中子水平，本发明提供了准直仪面向目标物的边缘区域由（γ，n）过程的有效截面为低的材料制成。 该边缘区域材料的尺寸近似对应于该材料中X射线的半值深度。

公开(公告)号：US4163901A

公开(公告)日：1979-08-07

申请号：US893780

申请日：1978-04-05

Applicant: Guy Azam ,  Andre Bensussan ,  Jean-Baptiste Gallet ,  Duc Tien Tran

Inventor： Guy Azam ,  Andre Bensussan ,  Jean-Baptiste Gallet ,  Duc Tien Tran

IPC: G21K1/093 ,  H01J35/00 ,  H05H9/00 ,  H05G1/26 ,  G21G4/00

CPC classification number: H05H9/00 ,  H01J35/00

Abstract: An irradiation apparatus comprising a fluid-tight enclosure in which are located a linear electron accelerator, a magnetron supplying a high frequency signal, means for injecting this high frequency signal into the accelerating structure, means for supplying voltage to the magnetron and the accelerator. A magnetic deflecting system can be associated with the linear accelerator for deflecting the accelerated electrons towards a target emitting X-rays. Cooling systems are provided inside the enclosure 1, in particular for cooling the magnetron.

Abstract translation: 一种照射装置，包括位于线性电子加速器的流体密封外壳，提供高频信号的磁控管，用于将该高频信号注入加速结构的装置，用于向磁控管和加速器提供电压的装置。 磁偏转系统可以与线性加速器相关联，用于将加速电子偏转到发射X射线的目标。 冷却系统设置在外壳1内，特别是用于冷却磁控管。

公开(公告)号：US4119855A

公开(公告)日：1978-10-10

申请号：US813934

申请日：1977-07-08

Applicant: Stephen E. Bernacki

Inventor： Stephen E. Bernacki

IPC: G03F7/20 ,  H01J35/00 ,  G03B41/16

CPC classification number: G03F7/70033 ,  H01J35/00

Abstract: A source of electrons or charged particles is contained in a baffled enclosure at less than atmospheric pressure. The source projects the electrons or charged particles to strike a target with a velocity which generates soft x-rays. The target is in a chamber at substantially atmospheric pressure in a gaseous environment which is only slightly dispersive and absorptive of the soft x-rays. Access to this chamber is provided to insert a mask and substrate for lithographing by the soft x-rays.

Abstract translation: 电子源或带电粒子在低于大气压下被包含在带挡板的外壳中。 来源投射电子或带电粒子以产生软X射线的速度撞击目标。 目标在气氛环境中处于基本大气压的室内，其只是轻微分散并吸收软X射线。 提供进入该室以插入用于通过软X射线进行光刻的掩模和基底。

公开(公告)号：US4065690A

公开(公告)日：1977-12-27

申请号：US762815

申请日：1977-01-26

Applicant: Shigeo Maeyama

Inventor： Shigeo Maeyama

IPC: H01J35/04 ,  H01J35/14 ,  H01J35/00

CPC classification number: H01J35/14

Abstract: An X-ray tube has a control grid located to cover a filament which is insulatingly mounted on a first focusing electrode. The control grid is electrically connected to the first focusing electrode. A second focusing electrode is so mounted on the first focusing electrode through an insulator that it covers the control grid. The second focusing electrode is made at the same potential level with that of the filament.

Abstract translation: X射线管具有控制栅格，其位于覆盖长丝的位置，绝缘地安装在第一聚焦电极上。 控制栅格电连接到第一聚焦电极。 第二聚焦电极通过覆盖控制栅的绝缘体安装在第一聚焦电极上。 第二聚焦电极与灯丝的电位相同。

公开(公告)号：US4048507A

公开(公告)日：1977-09-13

申请号：US657164

申请日：1976-02-11

Applicant: Alexis Neal de Gaston

Inventor： Alexis Neal de Gaston

IPC: A61B6/08 ,  H01J35/00 ,  G03B41/16

CPC classification number: A61B6/08 ,  H01J35/00

Abstract: A pair of separated semi-radio opaque sheets having a similar target pattern removed therefrom are placed in parallel alignment with the targets in perpendicular alignment. When exposed to an X-ray beam of a diagnostic X-ray machine, the targets produce a pattern in the radiograph in which the two targets are superimposed in slight misalignment except where the X-ray beam is perpendicular, thereby locating the perpendicular X-ray beam position with respect to the collimator jaws and visual target of the machine.

Abstract translation: 将具有从其去除的相似目标图案的一对分离的半不透光片放置成与靶垂直对准的平行对准。 当暴露于诊断X射线机的X射线束时，目标物在X射线照片中产生一个图案，其中两个靶以轻微的未对准重叠，除了X射线束垂直之外， 相对于准直器夹爪和机器的视觉目标的射线束位置。

公开(公告)号：US4045672A

公开(公告)日：1977-08-30

申请号：US720409

申请日：1976-09-03

Applicant: Eiji Watanabe

Inventor： Eiji Watanabe

IPC: A61B6/00 ,  A61B6/03 ,  G01N23/04 ,  G06T11/00 ,  H01J35/00 ,  H01J35/14 ,  A61B6/02 ,  G01N23/08 ,  G03B41/16 ,  H05G1/30

CPC classification number: A61B6/4447 ,  A61B6/032 ,  A61B6/4028 ,  A61B6/541 ,  G01N23/046 ,  G06T11/003 ,  H01J35/00 ,  H01J35/14 ,  G01N2223/419

Abstract: In an X-ray generating column, an X-ray microbeam is generated by irradiating a target with a scanning finely focused electron beam and permitting the microbeam to pass a pin hole in a beam guide plate or baffle. The take off direction of the X-ray microbeam is varied by scanning said electron beam over the target. The X-ray microbeam irradiates and passes through a thin slice plane of an object. The X-ray generating column rotates around the object. The rotation and electron beam scanning signals and the output signal of a detector for the X-rays passed through object are memorized by a memory circuit. A calculating circuit then calculates the X-ray absorption coefficient at each micro matrix area on the slice plane of the object, and delivers the respective outputs to an image display means to display an X-ray image of a slice plane of the object.

公开(公告)号：US4017757A

公开(公告)日：1977-04-12

申请号：US646091

申请日：1976-01-02

Applicant: Donald F. DeCou, Jr.

Inventor： Donald F. DeCou, Jr.

IPC: H01J35/04 ,  H01J35/18 ,  H01J35/32 ,  H01J35/00

CPC classification number: H01J35/04 ,  H01J35/18 ,  H01J35/32

Abstract: An X-ray tube comprising an evacuated envelope having therein a plurality of anode target materials suitably disposed for bombardment by respective electron beams, either simultaneously or alternatively, each of the electron beams being independently variable with respect to one another.

Abstract translation: 一种包括真空外壳的X射线管，其中具有适当地设置用于通过各个电子束轰击的多个阳极靶材料，或者同时或可替换地，每个电子束可相对于彼此独立地变化。

公开(公告)号：US4002917A

公开(公告)日：1977-01-11

申请号：US608276

申请日：1975-08-27

Applicant: Bernard Joseph Mayo

Inventor： Bernard Joseph Mayo

IPC: A61B6/03 ,  G21K5/04 ,  G21K5/10 ,  H01J35/00 ,  H01J35/30 ,  G03B41/16

CPC classification number: H01J35/30 ,  A61B6/032 ,  A61B6/4028 ,  A61B6/548

Abstract: Radiological apparatus is described for producing a representation of the variation of absorption coefficient with position over at least one planar slice taken cross-sectionally through a body under examination. The source of radiation comprises an X-ray tube having a target with an extended dimension in a direction substantially perpendicular to the plane of the aforementioned planar slice, and means is provided for scanning the electron beam of the tube along the extended dimension of the target so as to scan the X-radiation relative to the body in said direction.

Abstract translation: 描述了放射学装置，用于通过横截面通过被检体内的至少一个平面切片产生吸收系数与位置变化的表示。 辐射源包括具有在基本上垂直于上述平面切片的平面的方向上具有延伸尺寸的靶的X射线管，并且提供用于沿靶的延伸尺寸扫描管的电子束的装置 以便沿所述方向扫描相对于身体的X射线。

公开(公告)号：US4002915A

公开(公告)日：1977-01-11

申请号：US531071

申请日：1974-12-09

Applicant: Charles M. Weiss ,  Sadayasu Ota

Inventor： Charles M. Weiss ,  Sadayasu Ota

IPC: A61B6/14 ,  H01J35/00

CPC classification number: A61B6/14

Abstract: The disclosure relates to improvements in an assembly for taking a continuous X-ray picture of the dental arch of a human being, wherein a support base is supported by a wall construction so as to be either vertically slidable or fixed in position, thereby utilizing space much more effectively and improving the appearance of the assembly, and eliminating for an operator or a patient any problem regarding movement of the feet on taking the X-ray picture.

Abstract translation: 本公开涉及用于取得人类牙弓的连续X射线照片的组件的改进，其中支撑基座由壁结构支撑，以便可以垂直滑动或固定就位，从而利用空间 更有效地改善组装的外观，并且消除操作者或患者关于拍摄X射线照片时脚的移动的任何问题。