公开(公告)号：US20090245470A1

公开(公告)日：2009-10-01

申请号：US12371853

申请日：2009-02-16

Applicant: Edward James Morton ,  Russell David Luggar ,  Paul De Antonis

Inventor： Edward James Morton ,  Russell David Luggar ,  Paul De Antonis

IPC: H01J35/14 ,  H01J35/00

CPC classification number: H01J35/06 ,  H01J35/04 ,  H01J35/14 ,  H01J2235/068

Abstract: An X-ray tube includes an emitter wire (18) enclosed in a suppressor (14, 16). An extraction grid comprises a number of parallel wires (20) extending perpendicular to the emitter wire, and a focusing grid comprises a number of wires (22) parallel to the grid wires (20) and spaced apart at equal spacing to the grid wires (20). The grid wire are connected by means of switches to a positive extracting potential or a negative inhibiting potential, and the switches are controlled so that at any one time a pair of adjacent grid wires (22) are connected together to form an extracting pair, which produce an electron beam. The position of the beam is moved by switching different pairs of grid wires to the extracting potential.

Abstract translation: X射线管包括封闭在抑制器（14,16）中的发射极线（18）。 提取栅格包括垂直于发射极线延伸的多条平行线（20），并且聚焦栅格包括平行于栅格线（20）的数个线（22）并以等间距与网格线（ 20）。 栅格线通过开关连接到正提取电位或负抑制电位，并且开关被控制，使得在任何时刻一对相邻的栅格线（22）连接在一起以形成提取对，其中 产生电子束。 通过将不同的栅格线对切换到提取电位来移动光束的位置。

公开(公告)号：US07424095B2

公开(公告)日：2008-09-09

申请号：US10581542

申请日：2003-12-02

Applicant: Mark Joachim Mildner ,  Kurt Holm

Inventor： Mark Joachim Mildner ,  Kurt Holm

IPC: H01J35/14 ,  H01J35/06 ,  H05G2/00

CPC classification number: H01J35/04

Abstract: Modular X-ray tube (10) and method for the production of such an X-ray tube, in which an anode (20) and a cathode (30) are arranged in a vacuumized inner space (40) situated opposite each other, electrons (e−) being produced at the cathode (30) and X-rays (y) at the anode (20). The X-ray tube (10) according to the invention comprises a multiplicity of acceleration modules (41, . . . , 45), complementing one another, and each acceleration module (41, . . . , 45) comprises at least one potential-carrying acceleration electrode (20/30/423/433/443). A first acceleration module (41) thereby comprises the cathode (30), a second acceleration module (45) the anode (20). The X-ray tube (10) further comprises at least one other acceleration module (42, . . . , 44). In particular, the X-ray tube according to the invention can possess a re-closeable vacuum valve, enabling individual defective parts of the tube (10) to be replaced in a simple manner or enabling the tube (10) to be modified in a modular way.

Abstract translation: 模块化X射线管（10）以及用于生产这样的X射线管的方法，其中阳极（20）和阴极（30）布置在彼此相对的真空内部空间（40）中，电子 在阴极（30）处产生的（e - SUP）和在阳极（20）处的X射线（y）。 根据本发明的X射线管（10）包括多个彼此互补的加速模块（41 ...，45），并且每个加速模块（41 ...，45）包括至少一个电位 加载电极（20/30/423/433/443）。 第一加速模块（41）由此包括阴极（30），第二加速模块（45），阳极（20）。 X射线管（10）还包括至少一个其它加速模块（42，...，44）。 特别地，根据本发明的X射线管可以具有可再闭合的真空阀，使得可以简单地更换管（10）的各个有缺陷的部件，或使管（10）能够 模块化方式。

公开(公告)号：US20080095317A1

公开(公告)日：2008-04-24

申请号：US11549995

申请日：2006-10-17

Applicant: Sergio Lemaitre

Inventor： Sergio Lemaitre

IPC: H01J35/14

CPC classification number: H01J35/04 ,  H01J35/14 ,  H01J35/30

Abstract: An apparatus for focusing and deflecting the electron beam of an x-ray device is disclosed herein. The apparatus includes a vacuum enclosure, and a cathode assembly disposed within the vacuum enclosure. The cathode assembly is adapted to transmit an electron beam comprising a plurality of electrons. The cathode assembly is generally maintained at a first voltage. The apparatus also includes an anode disposed within the vacuum enclosure. The anode is generally maintained at a second voltage. The apparatus also includes a member disposed within the vacuum enclosure between the cathode assembly and the anode. The member defines an aperture through which the electron beam is passed. The member is generally maintained at the second voltage. A corresponding method for focusing and deflecting the electron beam of an x-ray device is also disclosed.

Abstract translation: 本文公开了一种用于聚焦和偏转x射线装置的电子束的装置。 该设备包括真空外壳和设置在真空外壳内的阴极组件。 阴极组件适于透射包括多个电子的电子束。 阴极组件通常保持在第一电压。 该设备还包括设置在真空外壳内的阳极。 阳极通常保持在第二电压。 该装置还包括设置在阴极组件和阳极之间的真空外壳内的构件。 该构件限定电子束通过的孔。 该构件通常保持在第二电压。 还公开了用于聚焦和偏转x射线装置的电子束的相应方法。

公开(公告)号：US20070053495A1

公开(公告)日：2007-03-08

申请号：US10554975

申请日：2004-04-23

Applicant: Edward Morton ,  Russell Luggar

Inventor： Edward Morton ,  Russell Luggar

IPC: H01J35/06

CPC classification number: H01J35/06 ,  H01J35/04 ,  H01J35/14 ,  H01J2235/068

Abstract: An X-ray tube includes an emitter wire (18) enclosed in a suppressor(14, 16). An extraction grid comprises a number of parallel wires (20) extending perpendicular to the emitter wire, and a focusing grid comprises a number of wires (22) parallel to the grid wires (20) and spaced apart at equal spacing to the grid wires (20). The grid wire are connected by means of switches to a positive extracting potential or a negative inhibiting potential, and the switches are controlled so that at any one time a pair of adjacent grid wires (22) are connected together to form an extracting pair, which produce an electron beam. The position of the beam is moved by switching different pairs of grid wires to the extracting potential.

Abstract translation: X射线管包括封闭在抑制器（14,16）中的发射极线（18）。 提取栅格包括垂直于发射极线延伸的多条平行线（20），并且聚焦栅格包括平行于栅格线（20）的数个线（22）并以等间距与网格线（ 20）。 栅格线通过开关连接到正提取电位或负抑制电位，并且开关被控制，使得在任何时刻一对相邻的栅格线（22）连接在一起以形成提取对，其中 产生电子束。 通过将不同的栅格线对切换到提取电位来移动光束的位置。

公开(公告)号：US07149282B2

公开(公告)日：2006-12-12

申请号：US10363134

申请日：2001-09-07

Applicant: Pelle Rangsten ,  Carolina Ribbing ,  Klas Hjort ,  Jonas Tirén

Inventor： Pelle Rangsten ,  Carolina Ribbing ,  Klas Hjort ,  Jonas Tirén

IPC: H01J35/04 ,  H01J35/06 ,  H01J35/08

CPC classification number: A61N5/1001 ,  A61N5/1002 ,  H01J35/04 ,  H01J35/065 ,  H01J2235/164 ,  H01J2235/186

Abstract: A miniaturized X-ray source is disclosed. It comprises an anode structure (43) and a cathode structure (41), each having an essentially pointed portion (44, 42), wherein at least the pointed portions being directed towards each other and enclosed in a vacuum cavity (49). The anode structure has an essentially dome shaped structure having a first essentially flat part (46) surrounded by a second essentially flat part (48), connected by a wall section (47), such that said first and second parts are located at different levels. The pointed portion is provided on said first flat portion and having an extension such that the apex of said pointed portion does not extend beyond the level of said second essentially flat part. A method of making an X-ray source is also disclosed.

Abstract translation: 公开了一种小型化X射线源。 它包括阳极结构（43）和阴极结构（41），每个阳极结构（43）具有基本上尖的部分（44,42），其中至少尖端部分被引导朝向彼此并封闭在真空空腔（49）中。 阳极结构具有基本上圆顶形的结构，其具有由第二基本上平坦的部分（48）围绕的第一基本上平坦的部分（46），所述第二基本上平坦的部分（48）由壁部分（47）连接，使得所述第一和第二部分位于不同的水平 。 尖部设置在所述第一平坦部分上并且具有延伸部，使得所述尖部的顶点不延伸超过所述第二基本平坦部分的高度。 还公开了制造X射线源的方法。

公开(公告)号：US20030072407A1

公开(公告)日：2003-04-17

申请号：US10302835

申请日：2002-11-25

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Kazumasa Mihara ,  Susumu Urano ,  Keiichi Hori ,  Shin Ogura

IPC: G21K001/12

CPC classification number: A61B6/032 ,  A61B6/4028 ,  A61B6/4488 ,  H01J35/025 ,  H01J35/04 ,  H01J35/08 ,  H01J2235/16

Abstract: A multisource type X-ray CT apparatus comprising a fixed sensor array, a fixed vacuum chamber, and an X-ray generation unit, wherein the X-ray generation unit includes a cathode and an anode which are fixed in the vacuum chamber so as to surround the sensor array, a gate array including a plurality of grid electrodes which are densely fixed between the cathode and anode and which include holes for passing the electron beams, a power source which applies a bias voltage to the grid electrodes of the gate array, and a controller which controls the power supply operation from the power source so as to select the grid electrode suitable for image pickup from the gate array in accordance with an image pickup portion of the subject and to release the bias voltage applied to the selected grid electrode.

Abstract translation: 一种多源X射线CT装置，包括固定传感器阵列，固定真空室和X射线产生单元，其中，所述X射线产生单元包括固定在所述真空室中的阴极和阳极，以便 围绕传感器阵列，包括密集地固定在阴极和阳极之间并且包括用于使电子束通过的孔的多个栅电极的门阵列，向栅极阵列的栅电极施加偏置电压的电源， 以及控制器，其控制来自所述电源的电源操作，以根据所述对象的图像拾取部分从所述门阵列选择适合于图像拾取的栅格电极，并且释放施加到所选择的栅极的偏置电压 。

公开(公告)号：US06390875B1

公开(公告)日：2002-05-21

申请号：US09535019

申请日：2000-03-24

Applicant: John M. Warren ,  Michael Price ,  Martin W. Plutowski

Inventor： John M. Warren ,  Michael Price ,  Martin W. Plutowski

IPC: H01J3510

CPC classification number: H01J35/04 ,  H01J2235/10 ,  H01J2235/12 ,  H01J2235/1237

Abstract: A method is provided for enhancing heat transfer within an X-ray vacuum tube, from a hot component such as the rotating anode assembly to a cooler component such as the metal tube housing, by increasing surface emissivity of respective components. The method comprises the steps of fabricating each component from an alloy containing a specified minimum amount of chromium, and then implementing a first heating operation, wherein a fabricated component is heated in a dry hydrogen atmosphere for a first specified time period. Thereafter, a second heating operation is implemented, wherein the fabricated component is heated in a wet hydrogen atmosphere for a second specified time period. This procedure forms a refractory chromium oxide coating on the component that exhibits high absorption in the NIR region of the electromagnetic spectrum.

Abstract translation: 提供了一种通过增加各个部件的表面发射率来增强X射线真空管内的热传递的方法，从诸如旋转阳极组件的热部件到诸如金属管壳体的较冷部件。 该方法包括以下步骤：从含有规定的最小量的铬的合金制造每个组分，然后实施第一加热操作，其中将制造的组分在干燥氢气氛中加热第一特定时间段。 此后，实施第二加热操作，其中制造的部件在湿氢气氛中加热第二特定时间段。 该方法在组分上形成耐火铬氧化物涂层，其在电磁光谱的NIR区域中表现出高吸收。

公开(公告)号：US5748701A

公开(公告)日：1998-05-05

申请号：US732922

申请日：1996-10-17

Applicant: Norbert Mika ,  Hannjoerg Bittorf

Inventor： Norbert Mika ,  Hannjoerg Bittorf

IPC: H01J35/00 ,  H01J35/04 ,  H01J35/06 ,  H01J35/14 ,  H05G1/34

CPC classification number: H01J35/04 ,  H01J35/045 ,  H01J35/14 ,  H05G1/34

Abstract: A cathode system for an x-ray tube has an electron emitter and a further electrode arranged between electron emitter and the x-ray tube anode. This further electrode can be connected to a potential deviating from the potential of the electron emitter with a switching stage having a pulse-pause (on-off) ratio set to produce the desired tube current.

Abstract translation: 用于X射线管的阴极系统具有电子发射体和布置在电子发射体与X射线管阳极之间的另外的电极。 该另外的电极可以连接到具有偏离电子发射器的电位的电位，其中开关级具有设置为产生期望的管电流的脉冲暂停（开 - 关）比。

公开(公告)号：US5289519A

公开(公告)日：1994-02-22

申请号：US958939

申请日：1992-10-09

Applicant: Roy E. Rand

Inventor： Roy E. Rand

IPC: H01J35/04 ,  H01J35/06

CPC classification number: H01J35/04

Abstract: An electron beam scanning system producing an electron beam in a relatively short chamber includes an ion controlling electrode assembly located between the electron gun and system beam optics. The assembly includes a somewhat cone-shaped rotating field ion controlling electrode ("RICE") unit disposed between first and second ion controlling electrode units ("ICE"s). The RICE and ICEs each comprise element pairs symmetrically disposed on opposite sides of the chamber Z-axis, preferably forming regular polygons in cross-section. Preferably corresponding elements in each ICE are electrically coupled to each other and to an opposite element in the RICE. Preferably equal and opposite bias potentials, with respect to an average potential, are coupled to the RICE and ICE elements comprising an element pair. Because it is somewhat cone-shaped, the RICE and electron beam create a transverse electric field with no axial component. Varying the bias potentials rotates the RICE electric field to controllably remove most but not all positive ions. The remaining ions improve the electron beam space-charge density, resulting in a sharply focused scanning electron beam. The ICE units sweep away positive ions in regions within the overall assembly not otherwise acted upon by fields. A single power source provides multiple potentials via a voltage divider, which potentials are switchably coupled to the RICE and ICE units to provide the required element potentials that may be controllably switched to rotate the resultant electric field in a predictable manner. The complete electrode assembly neither displaces nor deflects the emergent electron beam from the Z-axis.

Abstract translation: 在相对短的室中产生电子束的电子束扫描系统包括位于电子枪和系统光束光学器件之间的离子控制电极组件。 组件包括设置在第一和第二离子控制电极单元（“ICE”）之间的稍微锥形的旋转场离子控制电极（“RICE”）单元。 RICE和ICE各自包括对称地设置在腔室Z轴的相对侧上的元件对，优选地在横截面上形成规则的多边形。 优选地，每个ICE中相应的元件彼此电耦合并且与RICE中的相对元件电耦合。 优选地，相对于平均电位的相等和相反的偏置电位耦合到包括元件对的RICE和ICE元件。 因为它有些锥形，所以RICE和电子束产生没有轴向分量的横向电场。 改变偏置电位使RICE电场旋转可控地去除大部分但不是全部的正离子。 剩余的离子可以改善电子束的空间电荷密度，从而产生清晰的扫描电子束。 ICE单元扫除整个组件内的区域中的正离子，否则不会被场所影响。 单个电源通过分压器提供多个电位，该电位可切换地耦合到RICE和ICE单元，以提供所需的元件电位，其可被可控地切换以以可预测的方式旋转所得到的电场。 完整的电极组件既不使发射电子束从Z轴移位也不偏转。

公开(公告)号：US5020086A

公开(公告)日：1991-05-28

申请号：US316235

申请日：1989-02-24

Applicant: Richard S. Peugeot

Inventor： Richard S. Peugeot

IPC: H01J35/04 ,  H01J35/14 ,  H05G1/32

CPC classification number: H05G1/32 ,  H01J35/04 ,  H01J35/14

Abstract: A microfocus type X-ray system in which the electron beam current is generally operated in a milliampere range at a constant power, and the beam is subjected to electronic focusing for selected beam width and steering for directional control.

Abstract translation: 其中电子束电流通常以恒定功率在毫安范围内操作的微焦点型X射线系统，并且对于所选择的光束宽度和光束进行电子聚焦以进行方向控制。