公开(公告)号：US20100290593A1

公开(公告)日：2010-11-18

申请号：US12864316

申请日：2009-01-23

Applicant: Pierre Legagneux ,  Ludovic Hudanski ,  Pascal Ponard ,  Christophe Bourat ,  Jean-Philippe Schnell

Inventor： Pierre Legagneux ,  Ludovic Hudanski ,  Pascal Ponard ,  Christophe Bourat ,  Jean-Philippe Schnell

IPC: H01J35/06

CPC classification number: H01J35/065 ,  H01J2235/062 ,  H01J2235/068

Abstract: A radiation source includes a vacuum chamber, means for injecting an optical wave, a cold source for emitting electrons, a power supply, an anode for emitting X-rays, and at least one window through which the X-rays exit. A light source delivers the optical wave, and the cold source includes at least one substrate with a conducting surface and is subjected to an electric field. The cold further includes a photoconductive element in which the current is controlled approximately linearly by the illumination and at least one electron-emitting element, the photoconductive element electrically connected in series between an emitting element and a conducting surface. Current photogenerated in the photoconductive device is equal to that emitted by the emitter or the group of emitters with which it is associated, and the emitted stream of X-rays is approximately linearly dependent on the illumination.

Abstract translation: 辐射源包括真空室，用于注入光波的装置，用于发射电子的冷源，电源，用于发射X射线的阳极和至少一个X射线出射的窗口。 光源传送光波，并且冷源包括至少一个具有导电表面的基板并经受电场。 冷还包括光电导元件，其中电流通过照明近似线性地控制，并且至少一个电子发射元件，光电导元件串联地电连接在发光元件和导电表面之间。 在光电导装置中当前产生的光等于发射器或与其相关联的发射器组发射的光，并且所发射的X射线的光线近似线性地依赖于照明。

公开(公告)号：US20100195796A1

公开(公告)日：2010-08-05

申请号：US12697965

申请日：2010-02-01

Applicant: Kenji TAKAHASHI

Inventor： Kenji TAKAHASHI

IPC: H05G1/64 ,  G01N23/04

CPC classification number: H01J35/06 ,  H01J2235/062 ,  H01J2235/068 ,  H01J2235/087

Abstract: Fan beams of radiation are output from a multiplicity of radiation sources. Radiation is output simultaneously only from a part of the radiation sources having irradiation ranges that neither overlap with each other nor are adjacent to each other. Image correction data corresponding to each group of radiation sources is obtained by sequentially outputting radiation to the radiographic image detector while the groups of radiation sources are sequentially switched without setting a subject. An effective area that has a value higher than a predetermined threshold value is determined for each image correction data. Radiation is sequentially output to the radiographic image detector in a state in which a subject is set while groups of radiation sources are switched. Radiation image data obtained based on the effective area, and which corresponds to each of the groups of radiation sources, is corrected based on the image correction data.

Abstract translation: 风扇辐射束从多个辐射源输出。 辐射仅从具有彼此不重叠或彼此相邻的照射范围的一部分辐射源同时输出。 通过在不设置被摄体的情况下顺序地切换辐射源群而顺序地向放射线照相图像检测器输出辐射，获得与各组辐射源对应的图像校正数据。 针对每个图像校正数据确定具有高于预定阈值的有效区域。 在切换了一组辐射源的状态下，放射线照相图像检测器依次输出辐射。 基于有效面积获得并且对应于每组辐射源的辐射图像数据根据图像校正数据被校正。

公开(公告)号：US20100183117A1

公开(公告)日：2010-07-22

申请号：US12669556

申请日：2008-07-18

Applicant: Yoshiaki Tsumuraya ,  Hironori Ueki ,  Keiji Koyanagi

Inventor： Yoshiaki Tsumuraya ,  Hironori Ueki ,  Keiji Koyanagi

IPC: A61B6/03 ,  H05G1/32

CPC classification number: A61B6/405 ,  A61B6/4021 ,  A61B6/482 ,  H01J35/06 ,  H01J35/26 ,  H01J2235/068 ,  H05G1/58

Abstract: There are provided an X-ray generating apparatus capable of switching X-ray beams of high energy and low energy to each other at high speed, and an X-ray CT apparatus capable of performing high-speed and high-quality multi-energy imaging by using the same. The X-ray generating apparatus is constructed by an X-ray tube 9 having two anodes 200a, 200b, a rotational anode 204 for radiating X-ray from an X-ray focal point by electron beams emitted from filaments of these cathodes, and two grid electrodes 202a and 202b for controlling emission of the electron beams, a tube voltage generator 9a and a tube voltage controller 9d1 for controlling an X-ray condition, a filament heater 9b and a tube current controller 9d2, a grid voltage generator 9c and a grid opening/closing controller 9d3, and a grid switching unit 9e. High energy X-ray and low energy X-ray are switched and emitted to an examinee every adjacent projection angles, thereby collecting projection data.

Abstract translation: 提供了能够高速切换高能量低能量的X射线束的X射线产生装置，能够进行高速，高质量的多能量成像的X射线CT装置 通过使用相同。 X射线发生装置由具有两个阳极200a，200b的X射线管9构成，用于通过从这些阴极的细丝发射的电子束从X射线焦点放射X射线的旋转阳极204和 用于控制电子束发射的栅电极202a和202b，用于控制X射线条件的管电压发生器9a和管电压控制器9d1，灯丝加热器9b和管电流控制器9d2，电网电压发生器9c和 网格打开/关闭控制器9d3和网格切换单元9e。 高能X射线和低能量X射线被切换并发射到每个相邻投影角度的受检者，从而收集投影数据。

公开(公告)号：US07760849B2

公开(公告)日：2010-07-20

申请号：US11786781

申请日：2007-04-12

Applicant: Tiezhi Zhang

Inventor： Tiezhi Zhang

IPC: A61B6/03

CPC classification number: A61B6/06 ,  A61B6/025 ,  A61B6/032 ,  A61B6/4028 ,  A61B6/4085 ,  A61B6/4405 ,  A61B6/4441 ,  A61B6/4488 ,  A61B6/466 ,  A61B6/583 ,  G21K1/025 ,  H01J2235/062 ,  H01J2235/068 ,  H05G1/70

Abstract: A method of imaging an object that includes directing a plurality of x-ray beams in a fan-shaped form towards an object, detecting x-rays that pass through the object due to the directing a plurality of x-ray beams and generating a plurality of imaging data regarding the object from the detected x-rays. The method further includes forming either a three-dimensional cone-beam computed tomography, digital tomosynthesis or Megavoltage image from the plurality of imaging data and displaying the image.

Abstract translation: 一种对物体进行成像的方法，包括将扇形形式的多个x射线束引向物体，检测由于引导多个X射线束而穿过物体的X射线并产生多个 从所检测的x射线成像关于物体的数据。 该方法还包括从多个成像数据中形成三维锥束计算机断层摄影，数字断层合成或Megavoltage图像并显示该图像。

公开(公告)号：US20100104062A1

公开(公告)日：2010-04-29

申请号：US12257658

申请日：2008-10-24

Applicant: Xiaoye Wu ,  David Langan ,  Colin R. Wilson ,  Yun Zou

Inventor： Xiaoye Wu ,  David Langan ,  Colin R. Wilson ,  Yun Zou

IPC: H05G1/56 ,  A61B6/00 ,  H01J35/06

CPC classification number: H01J35/06 ,  H01J35/045 ,  H01J2235/068

Abstract: A CT system includes a rotatable gantry having an opening for receiving an object to be scanned and an x-ray source coupled to the gantry and configured to project x-rays through the opening. The x-ray source includes a target, a first cathode configured to emit a first beam of electrons toward the target, a first gridding electrode coupled to the first cathode, a second cathode configured to emit a second beam of electrons toward the target, and a second gridding electrode coupled to the second cathode. The system includes a generator configured to energize the first cathode to a first kVp and to energize the second cathode to a second kVp, and a detector attached to the gantry and positioned to receive x-rays that pass through the opening. The system also includes a controller configured to apply a gridding voltage to the first gridding electrode to block emission of the first beam of electrons toward the target, apply the gridding voltage to the second gridding electrode to block emission of the second beam of electrons toward the target, and acquire dual energy imaging data from the detector.

Abstract translation: CT系统包括可旋转机架，其具有用于接收待扫描物体的开口和耦合到台架的x射线源，并且被配置成通过开口投影X射线。 x射线源包括目标，被配置为朝向目标发射第一电子束的第一阴极，耦合到第一阴极的第一网格电极，被配置为向靶发射第二电子束的第二阴极，以及 耦合到第二阴极的第二栅极电极。 该系统包括发电机，其被配置为将第一阴极激励到第一kVp并且将第二阴极激励到第二kVp，以及附接到台架并被定位成接收穿过开口的x射线的检测器。 该系统还包括：控制器，被配置为向第一格栅电极施加网格化电压，以阻止第一电子束朝向目标的发射，将网格化电压施加到第二格栅电极，以阻止第二电子束朝向 目标，并从检测器获取双能量成像数据。

公开(公告)号：US07693265B2

公开(公告)日：2010-04-06

申请号：US12300159

申请日：2007-05-02

Applicant: Stefan Hauttmann ,  Jens Peter Kaerst

Inventor： Stefan Hauttmann ,  Jens Peter Kaerst

IPC: H01J35/06

CPC classification number: H01J35/06 ,  H01J2235/068 ,  H05G1/34

Abstract: The invention relates the field of electron emitter of an X-ray tube. More specifically the invention relates to flat thermionic emitters to be used in X-ray systems with variable focus spot size and shape. The emitter provides two main terminals (3, 5) which form current conductors and which support at least two emitting portions (7, 9). The emitting portions are structured in a way so that they are electron optical identical or nearly identical increasing the emergency operating options in case of emitter damage.

Abstract translation: 本发明涉及X射线管的电子发射体的领域。 更具体地，本发明涉及用于具有可变焦点尺寸和形状的X射线系统中的平面热电子发射器。 发射器提供形成电流导体的两个主端子（3,5），并支撑至少两个发射部分（7,9）。 发射部分的结构使得它们是电子光学相同或几乎相同的，在发射器损坏的情况下增加了应急操作选项。

公开(公告)号：US20100074392A1

公开(公告)日：2010-03-25

申请号：US12517216

申请日：2007-11-30

Applicant: Rolf Karlotto Behling ,  Gerald James Carlson

Inventor： Rolf Karlotto Behling ,  Gerald James Carlson

IPC: H01J35/30 ,  H01J35/14 ,  H01J35/08 ,  A61B6/00

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

Abstract: It is described an X-ray tube (100, 200) for moving a focal spot within a wide range. The X-ray tube (100, 200) comprises a first electron source (105), which is adapted to generate a first electron beam projecting along a first beam path (107a, 107b), a second electron source (110), which is adapted to generate a second electron beam projecting along a second beam path (112a, 112b) and an anode (120), which is arranged within the first beam path (107a, 107b) and within the second beam path (112a, 112b) such that on a surface (121) of the anode (120) the first electron beam (307a) generates a first focal spot (308) and the second electron beam (412a) generates a second focal spot (413). The X-ray tube (100, 200) further comprises a common deflection unit (130, 330, 430), which is adapted to deflect the first (307a) and the second electron beam (412a), such that the positions of the first (308) and the second focal spot (413) is shifted. The electron sources (105, 110) may be arranged within a linear array allowing for a simple mechanical support of the X-ray sources.

Abstract translation: 描述了用于在宽范围内移动焦点的X射线管（100,200）。 X射线管（100,200）包括第一电子源（105），其适于产生沿着第一光束路径（107a，107b）突出的第一电子束，第二电子源（110） 适于产生沿着第二光束路径（112a，112b）和阳极（120）投射的第二电子束，阳极（120）布置在第一光束路径（107a，107b）内并在第二光束路径（112a，112b）内， 在阳极（120）的表面（121）上，第一电子束（307a）产生第一焦斑（308），第二电子束（412a）产生第二焦点（413）。 X射线管（100,200）还包括公共偏转单元（130,330,430），其适于使第一（307a）和第二电子束（412a）偏转，使得第一 （308）和第二焦斑（413）移动。 电子源（105,110）可以布置在允许X射线源的简单机械支撑的线性阵列内。

公开(公告)号：US20100061516A1

公开(公告)日：2010-03-11

申请号：US12555104

申请日：2009-09-08

Applicant: Joerg Freudenberger ,  Ernst Neumeier

Inventor： Joerg Freudenberger ,  Ernst Neumeier

IPC: H01J35/14 ,  H01J35/06 ,  H01J35/30

CPC classification number: H01J35/06 ,  H01J35/14 ,  H01J35/30 ,  H01J2235/068

Abstract: An x-ray tube has a number of emitters that generate respective electron beams, and has a common anode at which the electron beams strike on a surface to generate x-rays. A high x-ray dose power with a long lifespan are achieved while being able to quickly vary the x-ray dose power by using a superimposed intensity distribution from the x-ray beams, which is measured by a detector, to optimize the x-ray beams on the surface.

Abstract translation: X射线管具有产生各自的电子束的多个发射体，并且具有公共阳极，电子束在该阳极处撞击在表面上以产生X射线。 实现了长寿命的高X射线剂量功率，同时能够通过使用由检测器测量的x射线束的叠加强度分布来快速改变X射线剂量功率，以优化X射线剂量功率， 射线束在表面。

公开(公告)号：US20100020935A1

公开(公告)日：2010-01-28

申请号：US12574795

申请日：2009-10-07

Applicant: Ehud DAFNI

Inventor： Ehud DAFNI

IPC: H01J35/08

CPC classification number: H01J35/04 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4021 ,  A61B6/4028 ,  A61B6/4085 ,  A61B6/4291 ,  A61B6/541 ,  H01J35/14 ,  H01J35/24 ,  H01J2235/068 ,  H01J2235/086

Abstract: An X-ray tube system comprising: at least one filament adapted to produce two electron beams when electrified; at least two anodes spaced from each other along a first direction that each comprises a face that receives an electron beams from the at least one filament at a focal point and produces x-ray cone beams responsive thereto, the x-ray beams being directed in a same direction perpendicular to the first direction; a collimator that collimates the cone beams such that the beams are asymmetric, with the side of each beam distal from the other beam having a smaller beam angle than the side proximal to the other beam.

Abstract translation: 一种X射线管系统，包括：至少一根灯丝，其适于在通电时产生两束电子束; 至少两个阳极沿着第一方向彼此间隔开，每个阳极包括在焦点处接收来自所述至少一个灯丝的电子束的面并产生响应于此的X射线锥形束，所述x射线束被引导到 垂直于第一方向的相同方向; 准直器，其使锥形光束准直，使得光束是不对称的，每个光束远离另一个光束的侧面具有比靠近另一个光束的一侧更小的光束角。

公开(公告)号：US20100008465A1

公开(公告)日：2010-01-14

申请号：US12514076

申请日：2007-11-07

Applicant: Tomohiko Matsuura ,  Masahiko Okunuki ,  Osamu Tsujii ,  Kazuhiro Matsumoto ,  Hiroyuki Shinbata ,  Yuichi Nishii

Inventor： Tomohiko Matsuura ,  Masahiko Okunuki ,  Osamu Tsujii ,  Kazuhiro Matsumoto ,  Hiroyuki Shinbata ,  Yuichi Nishii

IPC: H05G1/70 ,  G01N23/04

CPC classification number: A61B6/466 ,  A61B6/032 ,  A61B6/4028 ,  A61B6/4085 ,  A61B6/5241 ,  H01J2235/068 ,  H01J2235/087

Abstract: A control apparatus for controlling a multi radiation generating apparatus having a plurality of radiation generating devices which irradiate a two-dimensional sensor with radiation sets the intensity of radiation with which the plurality of radiation generating devices irradiate the two-dimensional sensor based on information about a part or physique of a patient, which is input by an input device.

Abstract translation: 用于控制具有多个辐射发生装置的多辐射发生装置的控制装置，所述多个辐射发生装置利用辐射照射二维传感器，其基于关于所述二维传感器的信息来设置所述多个辐射产生装置照射所述二维传感器的辐射强度 患者的部分或体格，由输入装置输入。