公开(公告)号：US20030185344A1

公开(公告)日：2003-10-02

申请号：US10109311

申请日：2002-03-28

Applicant: SHIMADZU CORPORATION

Inventor： Masaaki Ukita

IPC: H01J035/08

CPC classification number: H01J35/08 ,  H01J35/116 ,  H01J2235/081 ,  H01J2235/183

Abstract: A multilayer target 5 is composed of a first layer 5a, a second layer 5b and a third layer 5c which are made of different materials. When an electron beam 13 is incident upon the multilayer target 5, the electron beam 13 arrives at the third layer 5c, and X-rays Xa, Xb and Xc, the radiation qualities of which are respectively suitable for the characteristics of the first layer 5a, the second layer 5b and the third layer 5c, are generated.

Abstract translation: 多层靶5由不同材料制成的第一层5a，第二层5b和第三层5c组成。 当电子束13入射到多层靶5上时，电子束13到达第三层5c，X射线Xa，Xb和Xc的辐射特性分别适合于第一层5a的特性 ，第二层5b和第三层5c。

公开(公告)号：US20030016789A1

公开(公告)日：2003-01-23

申请号：US10174665

申请日：2002-06-19

Inventor： Geoffrey Harding ,  Jens Peter Schlomka

IPC: H01J035/08

CPC classification number: H01J35/08 ,  H01J2235/082

Abstract: The invention relates to an arrangement for generating X-rays upon incidence of electrons (4), which arrangement includes a liquid metal zone (7) in which a liquid metal (9) is provided as an X-ray target in such a manner that it can flow past a zone of electron incidence (8). In order to allow a pump of reduced capacity to be employed in such a device in order to provide the movement of the liquid metal, in accordance with the invention it is proposed to realize a pressure zone (10) which is separate from the liquid metal zone (7) and is provided with a pressure medium (11) in such a manner that the pressure medium (11) can exert a pressure on the liquid metal (9) present in the liquid metal zone (7) in order to force the liquid metal (9) past the zone of electron incidence (8), the pressure zone (10) being provided with a pressure accumulator (R3) which can be replenished in order to apply the pressure.

公开(公告)号：US20020101958A1

公开(公告)日：2002-08-01

申请号：US09772435

申请日：2001-01-29

Applicant: SIEMENS MEDICAL SYSTEMS, INC.

Inventor： Kirk Joseph Bertsche

IPC: H01J035/08

CPC classification number: H01J35/08 ,  A61N5/10 ,  A61N2005/1085 ,  H01J2235/081

Abstract: A multi-region target that is configured to selectively generate two different energy distributions when exposed to an excitation electron beam is described. The multi-region target includes multiple regions with different x-ray generating characteristics. Thus, the interaction between an excitation electron beam and the target generates an x-ray beam with an energy distribution that depends upon which target region is exposed to the excitation electron beam. The different x-ray spectra may be used to produce an enhanced contrast x-ray image. A method of detecting the rotational position of the multi-region target based upon the contrast level of the resulting images also is described.

Abstract translation: 描述了被配置为当暴露于激发电子束时选择性地产生两个不同能量分布的多区域目标。 多区域目标包括具有不同x射线产生特性的多个区域。 因此，激发电子束与目标之间的相互作用产生具有取决于哪个目标区域暴露于激发电子束的能量分布的X射线束。 可以使用不同的X射线光谱来产生增强的对比度x射线图像。 还描述了基于所得图像的对比度水平来检测多区域目标的旋转位置的方法。

公开(公告)号：US20020015473A1

公开(公告)日：2002-02-07

申请号：US09910073

申请日：2001-07-23

Inventor： Hans Martin Hertz ,  Oscar Hemberg

IPC: H01J035/08

CPC classification number: H05G2/003 ,  H01J35/08 ,  H01J2235/082 ,  H05G2/005

Abstract: In a method and an apparatus for generating X-ray or EUV radiation, an electron beam is brought to interact with a propagating target jet, typically in a vacuum chamber. The target jet is formed by urging a liquid substance under pressure through an outlet opening. Hard X-ray radiation may be generated by converting the electron-beam energy to Bremsstrahlung and characteristic line emission, essentially without heating the jet to a plasma-forming temperature. Soft X-ray or EUV radiation may be generated by the electron beam heating the jet to a plasma-forming temperature.

Abstract translation: 在用于产生X射线或EUV辐射的方法和装置中，电子束通常在真空室中与传播的靶射流相互作用。 目标射流是通过在压力下通过出口开启的液体物质来形成的。 可以通过将电子束能量转换为Bre致辐射和特征线发射来产生硬X射线辐射，基本上不将射流加热到等离子体形成温度。 可以通过将射流加热到等离子体形成温度的电子束产生软X射线或EUV辐射。

公开(公告)号：US20040174957A1

公开(公告)日：2004-09-09

申请号：US10481802

申请日：2003-12-22

Inventor： Geoffrey Harding ,  Bernd David ,  Rainer Willi Eckart ,  Jens Peter Schlomka

IPC: H01J035/08

CPC classification number: H01J35/08 ,  H01J2235/082

Abstract: The invention relates to an X-ray source which is provided with a liquid metal target (3) which flows through a system of ducts (6) and is conducted through a duct section (8) whose flow cross-section is reduced relative to that of the system of ducts. The X-ray source is characterized notably in that there is provided a pressure source (12, 13; 14; 16) for acting on the liquid metal target (3) in such a manner that in the operating condition of the X-ray source the pressure in the liquid metal target (3) at the area of the reduced flow cross-section equals essentially a selectable reference value (Ps) or remains essentially in a pressure range between selectable limit values (Ps1, Ps2) of the pressure. A comparatively small thickness of a window which is transparent to an electron beam can thus be realized in conjunction with a comparatively high flow speed, that is, without having to accept the risk of cavitations. The invention also relates to an X-ray apparatus provided with an X-ray source of this kind.

Abstract translation: 本发明涉及一种具有液体金属靶（3）的X射线源，该液体金属靶（3）流过管道（6）的系统，并且通过导管部分（8）传导，该管道部分（8）的流动横截面相对于 的管道系统。 X射线源的特征在于，提供了一个用于作用在液态金属靶（3）上的压力源（12,13; 14; 16），使得在X射线源的运行状态 在流动截面减小的区域中的液态金属靶（3）中的压力基本上等于可选择的参考值（Ps），或者基本上保持在压力的可选极限值（Ps1，Ps2）之间的压力范围内。 因此，与电子束透明的窗口相对较小的厚度可以结合较高的流速来实现，即不必接受空化的风险。 本发明还涉及具备这种X射线源的X射线装置。

公开(公告)号：US20040076260A1

公开(公告)日：2004-04-22

申请号：US10467944

申请日：2003-08-14

Inventor： Harry K. Charles Jr ,  Thomas J. Beck

IPC: H01J035/08

CPC classification number: H05G1/02 ,  H01J35/08 ,  H01J35/108 ,  H01J35/116 ,  H01J35/12 ,  H01J35/18 ,  H01J35/186 ,  H01J35/30 ,  H01J2235/081 ,  H01J2235/083 ,  H01J2235/1204 ,  H01J2235/1262 ,  H05G1/025

Abstract: An x-ray tube and method of operating include a vacuum chamber vessel and a source of an electron beam inside the vacuum chamber vessel. A target disposed inside the vacuum chamber vessel includes a substrate and one or more deposits attached to the substrate. Each different deposit includes an atomic element having a different atomic number. The x-ray tube also includes a means for directing the electron beam to a selectable deposit of multiple deposits. The substrate material can be selected with better vacuum sustaining strength, x-ray transparency, melting point, and thermal conductivity than a deposit. The substrate may be cooled by an integrated cooling system. The x-ray tube allows a selectable x-ray frequency to be produced with enhanced economy of power, reduced moving parts, and reduced size. For improved bone mass applications, one of the deposits has a k-fluorescence energy less than about 53 thousand electron volts.

Abstract translation: X射线管和操作方法包括在真空室容器内的真空室容器和电子束源。 设置在真空室容器内部的靶包括基底和附着到基底的一个或多个沉积物。 每个不同的沉积物包括具有不同原子序数的原子元素。 X射线管还包括用于将电子束引导到可选择沉积多个沉积物的装置。 可以选择具有比沉积物更好的真空维持强度，x射线透明度，熔点和导热性的基底材料。 衬底可以通过集成冷却系统来冷却。 X射线管允许以增强的功率经济性，减少的运动部件和减小的尺寸来产生可选择的x射线频率。 对于改进的骨量应用，沉积物中的一种具有小于约53000电子伏特的k-荧光能量。

公开(公告)号：US20020191748A1

公开(公告)日：2002-12-19

申请号：US10227692

申请日：2002-08-26

Inventor： Thomas C. Tiearney ,  Thomas Robert Raber ,  Pazhayannur Ramanathan Subramanian ,  Srihari Balasubramanian

IPC: H01J035/08

CPC classification number: H01J35/108 ,  H01J2235/083

Abstract: A brazed X-ray target includes a metallic cap and a graphite back including a nonlinear record groove attached thereto along a stepped surface. An upper corner joint of the stepped surface is distanced from a cap outer edge and a focal track where the maximum heat is generated during use of the target. The graphite back is extended outward toward the cap outer edge to increase a thermal storage of the graphite, and a recess is formed into the cap to maintain a selected moment of inertia of the target and thereby maintain the rotordynamics of a given X-ray tube.

Abstract translation: 钎焊的X射线靶包括金属盖和石墨背，其包括沿台阶表面附接到其上的非线性记录槽。 台阶表面的上角接头远离帽外边缘和焦点轨道，在目标的使用过程中产生最大的热量。 石墨背部向外延伸到盖外边缘以增加石墨的热存储，并且将凹部形成为盖以保持靶的选定转动惯量，从而保持给定X射线管的旋转动力学 。

公开(公告)号：US20020191747A1

公开(公告)日：2002-12-19

申请号：US10147421

申请日：2002-05-16

Inventor： Masao Sato

IPC: H01J035/08

CPC classification number: G01N23/20 ,  G01N23/223 ,  G01N2223/076 ,  H01J35/08 ,  H01J2235/088

Abstract: In order to provide a single, small apparatus capable of elemental and structural analysis of inorganic matter by utilizing X-rays having non-obstructive and non-contact characteristics there is provided a small, energy distribution type X-ray detector for detecting X-ray fluorescence and subjecting the X-ray fluorescence to elemental and quantative analysis, and a CCD line sensor for performing structural analysis. An X-ray tube target structure that is a Cu layer on an Mo layer is adopted. When excitation is performed using a low accelerating voltage, this is made monochromatic by using a Cu filter to filter the Cu-K lines and the continuous X-rays generated, with the radiation quality (Cu-K lines) thus generated then being utilized in X-ray diffraction. When excitation is performed using a high accelerating voltage, Cu-K lines of the Cu-K lines, Mo-K lines and continuous X-rays thus generated are blocked by absorption using an Mo or Zr filter, with the Mo-K lines and continuous X-rays thus obtained being utilized in X-ray fluorescence analysis.

Abstract translation: 为了提供能够通过利用具有非阻塞性和非接触特性的X射线对无机物进行元素和结构分析的单个小型装置，提供了一种用于检测X射线的小型能量分布型X射线检测器 荧光和X射线荧光进行元素和定量分析，以及用于进行结构分析的CCD线传感器。 采用Mo层上的Cu层的X射线管靶结构。 当使用低加速电压进行激励时，通过使用Cu滤光器对Cu-K线和产生的连续X射线进行滤波，由此产生的辐射质量（Cu-K线）被用于单色 X射线衍射。 当使用高加速电压进行激发时，通过使用Mo或Zr过滤器的吸收阻止由此产生的Cu-K线，Mo-K线和连续的X射线的Cu-K线与Mo-K线和 由此获得的连续X射线用于X射线荧光分析。

公开(公告)号：US20020154740A1

公开(公告)日：2002-10-24

申请号：US10102509

申请日：2002-03-19

Applicant: Advanced Electron Beams, Inc.

Inventor： Tzvi Avnery

IPC: H01J035/08 ,  H01J035/32

CPC classification number: A61L2/082 ,  A61L2/08 ,  A61L2202/24 ,  G21K5/04 ,  H01J35/08 ,  H01J35/18 ,  H01J2235/186

Abstract: An X-ray beam emitter including a vacuum chamber having a target window. An electron generator is positioned within the vacuum chamber for generating electrons that are directed at the target window for forming X-rays. The X-rays pass through the target window in an X-ray beam.

Abstract translation: 一种X射线束发射器，包括具有目标窗口的真空室。 电子发生器位于真空室内，用于产生指向目标窗口以形成X射线的电子。 X射线穿过目标窗口。

公开(公告)号：US20020150213A1

公开(公告)日：2002-10-17

申请号：US09798855

申请日：2001-02-28

Inventor： Peter Poulsen

IPC: H01J035/08

CPC classification number: H01J35/22 ,  H01J35/08 ,  H01J2235/081 ,  H01J2235/088

Abstract: A converter and method for converting electron energy to irradiative energy comprising foam and/or foil. Foam and foil optionally comprise a high-Z material, such as, but not limited to, tantalum.

Abstract translation: 用于将电子能量转换成包含泡沫和/或箔的照射能的转换器和方法。 泡沫和箔片任选地包括高Z材料，例如但不限于钽。