X-ray source provided with a liquid metal target
    21.
    发明授权
    X-ray source provided with a liquid metal target 失效
    X射线源设有液态金属靶

    公开(公告)号:US06647094B2

    公开(公告)日:2003-11-11

    申请号:US10174665

    申请日:2002-06-19

    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.

    Abstract translation: 本发明涉及一种在电子(4)入射时产生X射线的装置,该装置包括液态金属区(7),液态金属(9)设置为液态金属(9)作为X射线靶, 它可以流过电子入射区(8)。 为了允许在这种装置中使用容量较小的泵以提供液态金属的移动,根据本发明,提出实现与液态金属分开的压力区(10) 区域(7),并且设置有压力介质(11),使得压力介质(11)可以对存在于液态金属区域(7)中的液态金属(9)施加压力,以便迫使 液体金属(9)经过电子入射区(8),压力区(10)设置有可补充的压力蓄能器(R3),以便施加压力。

    Directional variable small cross-sectional X-ray or gamma ray beam
generating diaphragm with rotating helical slits
    22.
    发明授权
    Directional variable small cross-sectional X-ray or gamma ray beam generating diaphragm with rotating helical slits 失效
    具有旋转螺旋狭缝的定向可变小横截面X射线或γ射线束产生膜片

    公开(公告)号:US5038370A

    公开(公告)日:1991-08-06

    申请号:US494041

    申请日:1990-03-14

    CPC classification number: G21K1/04

    Abstract: The invention relates to an arrangement for generating an X-ray or gamma beam with small cross-section and variable direction, having an X-ray or gamma emitter, from the focus of which a bundle of rays emerges, and a diaphragm arrangement, which cuts out a beam from the bundle of rays and comprises a hollow-cylindrical first diaphragm body which is rotatable about its axis of symmetry and has two mutually offset helical slits on the circumference. In this arrangement, an X-ray beam with at least approximately square cross-section is cut out on a relatively long hollow-cylindrical body with small diameter by the slits winding around the diaphragm body in at least one turn each and being shaped in such a way that at least one straight line runs through the slits towards the focus, the position of which line can be varied by turning the diaphragm body.

    Abstract translation: 本发明涉及一种用于产生具有小横截面和可变方向的X射线或伽马射线的装置,具有X射线或γ射线,其焦点来自其一束光线的出现以及膜片装置,其中 从束束切出光束,并且包括可绕其对称轴线旋转的中空圆柱形第一光阑体,并且在圆周上具有两个相互偏移的螺旋狭缝。 在这种布置中,具有至少近似正方形横截面的X射线束在具有小直径的相对较长的中空圆柱体上被切割成围绕隔膜体的狭缝至少在一个匝中并以此形状 至少一条直线穿过狭缝朝向焦点的方式,可以通过转动隔膜体来改变该线的位置。

    X-ray apparatus
    25.
    发明授权
    X-ray apparatus 失效
    X光装置

    公开(公告)号:US4751722A

    公开(公告)日:1988-06-14

    申请号:US56295

    申请日:1987-05-29

    CPC classification number: A61B6/483 G01N23/201 A61B6/03

    Abstract: The invention relates to an X-ray apparatus which allows for the determination of the elastically scattered X-rays and the evaluation of the information contained therein. Because the scattered radiation exhibits a pronounced maximum value as a function of the scatter angle and because the scatter angle at which this maximum value occurs depends on the material in which the scattered radiation is produced, X-ray images thus formed contain essential information concerning the chemical composition of the body examined.

    Abstract translation: 本发明涉及一种能够确定弹性散射的X射线和其中包含的信息的评估的X射线装置。 因为散射辐射作为散射角的函数具有明显的最大值,并且由于发生该最大值的散射角取决于产生散射辐射的材料,因此形成的X射线图像包含关于 检查身体的化学成分。

    Device for determining the density distribution in an object
    26.
    发明授权
    Device for determining the density distribution in an object 失效
    用于确定物体中密度分布的装置

    公开(公告)号:US4375695A

    公开(公告)日:1983-03-01

    申请号:US198740

    申请日:1980-10-20

    CPC classification number: A61B6/483 A61B6/06 A61B6/583

    Abstract: In a device for determining the density distribution on a straight line by means of a narrow penetrating beam, the measuring accuracy for the center of an object to be examined is increased in that the primary beam is not only displaced perpendicularly to its direction, but is also rotated around a point in this center. To this end, a radiation source and a detector device are mounted on a supporting device which can rotate the path of the primary beam around a central point, preferably the center of the object, around an axis which intersects the path of the primary beam at right angles.

    Abstract translation: 在用于通过窄穿透光束确定直线上的密度分布的装置中,待检查物体的中心的测量精度增加,因为主光束不仅垂直于其方向移位,而且 也旋转在这个中心的一个点。 为此,辐射源和检测器装置安装在支撑装置上,该支撑装置可以围绕围绕主梁的路径相交的轴线绕着中心点(优选地是物体的中心)旋转主波束的路径 直角。

    Device for determining internal body structures by means of scattered
radiation
    27.
    发明授权
    Device for determining internal body structures by means of scattered radiation 失效
    通过散射辐射确定内部结构的装置

    公开(公告)号:US4277686A

    公开(公告)日:1981-07-07

    申请号:US56479

    申请日:1979-07-11

    Inventor: Geoffrey Harding

    CPC classification number: A61B6/483

    Abstract: The invention relates to a device for measuring a scatter coefficient distribution in a plane of a body. The plane is irradiated in different directions by a primary radiation beam along beam paths which are each time situated in parallel in a direction. Scattered radiation which is generated by a primary radiation beam along its path is measured by detectors which are situated on both sides of the plane and which enclose the body as completely as possible. The scatter coefficient distribution is determined by iteration by calculating a scatter value for each beam path from an assumed distribution and by comparing this scatter value with the associated measured scattered radiation. From the difference between calculated and measured values a correction is determined and taken up in the calculated value.

    Abstract translation: 本发明涉及一种用于测量身体平面中散射系数分布的装置。 沿着沿着方向平行的每个时间沿着光束路径的主辐射束在不同方向上照射该平面。 由主辐射束沿其路径产生的散射辐射由位于平面两侧并且尽可能完全包围身体的检测器来测量。 通过从假设分布计算每个光束路径的散射值并通过将该散射值与相关联的测量散射辐射进行比较来确定散射系数分布。 根据计算值和测量值之间的差值,确定校正并将其计算在计算值中。

    METHOD AND SYSTEM FOR DERIVING MOLECULAR INTERFERENCE FUNCTIONS FROM XRD PROFILES
    28.
    发明申请
    METHOD AND SYSTEM FOR DERIVING MOLECULAR INTERFERENCE FUNCTIONS FROM XRD PROFILES 有权
    用于从XRD图谱衍生分子干涉函数的方法和系统

    公开(公告)号:US20120133516A1

    公开(公告)日:2012-05-31

    申请号:US12956715

    申请日:2010-11-30

    Inventor: Geoffrey Harding

    Abstract: A method for identifying a substance includes determining a first molecular interference function (MIF) for a first substance. The method also includes determining a second MIF for a second substance. The method further includes generating a residual MIF at least partially based on a comparison of the second MIF to the first MIF. The method also includes identifying the type of substance based on the residual MIF.

    Abstract translation: 用于鉴定物质的方法包括确定第一物质的第一分子干涉功能(MIF)。 该方法还包括确定第二物质的第二MIF。 该方法还包括至少部分地基于第二MIF与第一MIF的比较来产生残余MIF。 该方法还包括基于剩余的MIF来识别物质的类型。

    Secondary collimator and method of making the same
    29.
    发明授权
    Secondary collimator and method of making the same 有权
    二次准直仪及其制作方法

    公开(公告)号:US08139717B2

    公开(公告)日:2012-03-20

    申请号:US12572938

    申请日:2009-10-02

    CPC classification number: G21K1/025

    Abstract: A method for making a secondary collimator that includes at least one plate having a plurality of slits defined therein includes determining a gap thickness between plate positions of the secondary collimator based on at least one dimension of the at least one plate and fabricating a base plate from a base plate blank. The base plate includes at least two slots being spaced apart by the gap thickness. The at least one plate is inserted into a first slot of the at least two slots to form the secondary collimator.

    Abstract translation: 一种用于制造二次准直器的方法,包括至少一个具有限定在其中的多个狭缝的板,包括:根据至少一个板的至少一个尺寸确定次准准器的板位置之间的间隙厚度,并从 底板坯。 基板包括至少两个狭槽间隔开的间隙厚度。 将至少一个板插入至少两个槽的第一槽中以形成次准准器。

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