Apparatus and method for improved energy dispersive X-ray spectrometer
    161.
    发明授权
    Apparatus and method for improved energy dispersive X-ray spectrometer 失效
    改进能量色散X射线光谱仪的装置和方法

    公开(公告)号:US06442231B1

    公开(公告)日:2002-08-27

    申请号:US09485526

    申请日:2000-02-10

    Inventor: David B. O'Hara

    Abstract: The invention is an improved energy dispersive x-ray spectrometer comprising x-ray source (10), sample (12), optics (20) and detector (16). The improvement comprises the use of optics using the principle of total external reflection for delivering an increased flux of x-rays onto the detector. These flux concentrating optics are generally shaped as tubes having a figure of revolution as a longitudinal cross section such as a cone, parabola, hyperbola, ellipsoid and others. These optics may also be used as low energy pass filters by incorporating a stop (22) at or near the aperture of the optic. The reflecting surface of the flux concentrator optic may be selected from the group of metals and their alloys, the choice made to optimize the optic's performance.

    Abstract translation: 本发明是一种改进的能量色散X射线光谱仪,其包括x射线源(10),样品(12),光学器件(20)和检测器(16)。 改进之处在于使用全反射原理将光线传递到检测器上。 这些通量集中光学器件通常成形为具有作为纵向横截面的旋转数的管,例如圆锥体,抛物线,双曲线,椭圆体等。 这些光学器件还可以用作低能量通过滤光器,通过在光学器件的孔处或附近并入止动器(22)。 磁通集中器光学器件的反射表面可以选自金属及其合金组,其选择是为了优化光学元件的性能。

    Optical scheme for high flux low-background two-dimensional small angle x-ray scattering
    162.
    发明授权
    Optical scheme for high flux low-background two-dimensional small angle x-ray scattering 有权
    用于高通量低背景二维小角度X射线散射的光学方案

    公开(公告)号:US06330301B1

    公开(公告)日:2001-12-11

    申请号:US09466261

    申请日:1999-12-17

    Applicant: Licai Jiang

    Inventor: Licai Jiang

    CPC classification number: G01N23/201

    Abstract: An x-ray analysis system including a focusing optic for focusing an x-ray beam to a focal point, a first slit optically coupled to the focusing optic, a second slit optically coupled to the first slit, and an x-ray detector, where the focal point is located in front of the detector.

    Abstract translation: 一种X射线分析系统,包括用于将X射线束聚焦到焦点的聚焦光学器件,与聚焦光学器件光学耦合的第一狭缝,与第一狭缝光学耦合的第二狭缝和x射线检测器,其中 焦点位于检测器前面。

    X-ray analysis apparatus with a graded multilayer mirror
    163.
    发明授权
    X-ray analysis apparatus with a graded multilayer mirror 有权
    具有渐变多层镜的X射线分析装置

    公开(公告)号:US06226349B1

    公开(公告)日:2001-05-01

    申请号:US09356346

    申请日:1999-07-19

    CPC classification number: G01N23/201 G01N23/20 G21K1/062

    Abstract: An X-ray analysis apparatus having a curved paraboloid-shaped curved graded multilayer Bragg reflector (5) is characterized in that the layers of the reflector (5) are directly introduced onto a concave curved surface of a paraboloid-shaped hollow substrate and a maximum allowable shape deviation for the concave substrate surface facing the reflector is &Dgr;p={square root over (2px)} &Dgr;&thgr;R, and having a maximum allowable waviness Δ ⁢   ⁢ y Δ ⁢   ⁢ x = 1 2 ⁢ Δθ R and a maximum allowable roughness &Dgr;y=d/2&pgr;, preferentially &Dgr;y≦0.3 nm, wherein the X radiation (7) impinges on the curved surface of the reflector (5) at an angle of incidence 0°

    Abstract translation: 具有弯曲抛物面形弯曲多层布拉格反射体(5)的X射线分析装置的特征在于,将反射器(5)的各层直接导入抛物面形中空基板的凹曲面上, 面向反射器的凹面基板表面的允许形状偏差为DELTAp = {平方根超过(2px)} DELTAthetaR,并且具有最大允许波纹度和最大允许粗糙度DELTAy = d / 2pi,优选为DELTAy <= 0.3nm,其中X 辐射(7)以入射角0°<= 5°撞击反射器(5)的弯曲表面,随着反射器层朝向抛物面开口的周期厚度d在x方向上增加, 偏差DELTAd / DELTAx小于d /(2x)。 以这种方式,在可靠性和寿命方面,分析装置的传输被显着地提高,同时降低了制造难度和费用。

    Phase contrast X ray imaging system
    164.
    发明授权
    Phase contrast X ray imaging system 失效
    相位X射线成像系统

    公开(公告)号:US5881126A

    公开(公告)日:1999-03-09

    申请号:US827535

    申请日:1997-03-28

    Applicant: Atsushi Momose

    Inventor: Atsushi Momose

    Abstract: A phase-contrast X-ray imaging system according to the present invention comprises an X-ray interferometer, wherein X-ray interfering beams thicker than 2 cm.times.2 cm are formed enabling observation of comparatively large objects. The X-ray interferometer is constituted by two crystal blocks which each are monolithically cut out from ingots of crystal and have two wafers which function as X-ray half mirrors. Optical equipment, a chamber, and a feedback system are incorporated to adjust and stabilize the crystal blocks. A device is also incorporated to obtain an image showing the distribution of the X-ray phase shift with which diagnosis become easier and reliable.

    Abstract translation: 根据本发明的相差X射线成像系统包括X射线干涉仪,其中形成的厚度大于2cm×2cm的X射线干涉光束能够观察比较大的物体。 X射线干涉仪由两个晶体块组成,每个晶体块从晶体晶圆单片切割并具有两个用作X射线半反射镜的晶片。 引入光学设备,室和反馈系统来调节和稳定晶体块。 还结合了一种装置以获得显示X射线相移分布的图像,诊断变得更容易和可靠。

    Examination method for the evaluation of location-dependent spectra
    165.
    发明授权
    Examination method for the evaluation of location-dependent spectra 失效
    用于评估位置依赖光谱的检查方法

    公开(公告)号:US5812630A

    公开(公告)日:1998-09-22

    申请号:US305116

    申请日:1994-09-13

    Inventor: Thomas Blaffert

    CPC classification number: G01N23/201 G06F17/141 G06F17/16

    Abstract: The invention relates to an examination method whereby a respective spectrum with a number of spectral values is measured for a number of locations. Collective evaluation of the old spectra is enabled by the following steps: a) formation of a data matrix from the spectral vectors formed by the series of spectral values of a respective spectrum, the spectral vectors being arranged in the columns (or in the rows) of the data matrix in a location-dependent manner, b) singular value decomposition of the data matrix in order to obtain three matrices whose product corresponds to the data matrix, the first (third) matrix consisting of spectrally dependent vectors, whereas the second matrix is a diagonal matrix and the third (first) matrix consists of location-dependent vectors, c) evaluation of at least one of the three matrices.

    Abstract translation: 本发明涉及一种检查方法,其中针对多个位置测量具有多个光谱值的相应光谱。 通过以下步骤实现旧光谱的集体评估:a)从由相应光谱的一系列光谱值形成的光谱矢量形成数据矩阵,光谱矢量排列在列(或行)中, 数据矩阵的位置相关方式,b)数据矩阵的奇异值分解,以便获得其乘积对应于数据矩阵的三个矩阵,第一(第三)矩阵由频谱依赖向量组成,而第二矩阵 是对角矩阵,第三(第一)矩阵由位置相关向量组成,c)评估三个矩阵中的至少一个。

    Device for measuring the momentum transfer spectrum of X-ray quanta
elastically scattered in an examination zone
    166.
    发明授权
    Device for measuring the momentum transfer spectrum of X-ray quanta elastically scattered in an examination zone 失效
    用于测量在检查区中弹性散射的X射线量子的动量传递光谱的装置

    公开(公告)号:US5612988A

    公开(公告)日:1997-03-18

    申请号:US601408

    申请日:1996-02-14

    Inventor: Gerhard Martens

    CPC classification number: G01N23/201 G01T1/29

    Abstract: The invention relates to a device for measuring the momentum transfer spectrum of X-ray quanta elastically scattered in an examination zone, comprising an X-ray source and a detector device with a plurality of detector elements, one of which serves to measure a reference radiation beam. Attractive results are obtained in that between the examination zone and the X-ray source there is arranged at least one scatter member which scatters the X-rays emitted by the X-ray source, the reference radiation beam being formed from the part of the scattered radiation which reaches the reference detector element rectilinearly through the examination zone.

    Abstract translation: 本发明涉及一种用于测量在检查区中弹性散射的X射线量子的动量传递光谱的装置,其包括X射线源和具有多个检测器元件的检测器装置,其中之一用于测量参考辐射 光束。 得到有吸引力的结果是,在检查区域和X射线源之间设置有散射由X射线源发射的X射线的至少一个散射构件,参考辐射束由散射的部分形成 通过检查区域直接到达参考检测器元件的辐射。

    Radiation imaging system
    167.
    发明授权
    Radiation imaging system 失效
    辐射成像系统

    公开(公告)号:US5590169A

    公开(公告)日:1996-12-31

    申请号:US369802

    申请日:1995-01-09

    Abstract: An imaging system for medical and industrial applications that includes scanning a plurality of points of the object zone with an intermittent collimated radiation incident beam, producing a series of first digital signals representing the energy of said beam that transmits through corresponding points of the zone along the incident line, producing a series of second digital signals representing the energy of said beam scattered off the incident line by the object, storing the informational content of the first and second digital signals contents to represent an incident image array and a scattered image array, and combining the information contents of substantially corresponding points of said arrays to produce a visual image display that is more accurate than either of the first and second image arrays alone. High and low energy beams can be used and three dimensional or depth information can also be derived.

    Abstract translation: 一种用于医疗和工业应用的成像系统,包括用间歇准直辐射入射光束扫描对象区域的多个点,产生一系列第一数字信号,表示所述光束的能量,所述第一数字信号通过沿着该区域的对应点透射 产生一系列第二数字信号,表示由对象散射离开入射线的所述光束的能量,存储第一和第二数字信号内容的信息内容以表示入射图像阵列和散射图像阵列,以及 组合所述阵列的基本对应点的信息内容以产生比单独的第一和第二图像阵列中的任一个更准确的视觉图像显示。 可以使用高能量和低能量的光束,也可以导出三维或深度信息。

    Multichannel radiography employing scattered radiation
    168.
    发明授权
    Multichannel radiography employing scattered radiation 失效
    多通道射线照相采用散射辐射

    公开(公告)号:US4495636A

    公开(公告)日:1985-01-22

    申请号:US222133

    申请日:1981-01-02

    Abstract: A diagnostic imaging system and process permits construction of an image of an area of an interfacial surface within the body of a subject, such as the heart-lung interface. The imaging system includes radiation source means for generating a shaped beam of penetrating radiation for illuminating the interfacial surface. Radiation scattered from tissue at the interface is detected by a plurality of directional radiation detectors which can be automatically positioned and oriented so that their fields of view intersect the beam of radiation and the interfacial surface.

    Abstract translation: 诊断成像系统和过程允许构建受试者体内例如心 - 肺界面的界面的区域的图像。 成像系统包括用于产生用于照射界面的穿透辐射的成形光束的辐射源装置。 通过多个定向辐射检测器检测在界面处从组织散射的辐射,其可以被自动定位和定向,使得它们的视野与辐射束和界面表面相交。

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