Two-dimensional detector of ionizing radiation and method for making same
    11.
    发明授权
    Two-dimensional detector of ionizing radiation and method for making same 失效
    电离辐射二维检测器及其制作方法

    公开(公告)号:US06878944B1

    公开(公告)日:2005-04-12

    申请号:US09914255

    申请日:2000-02-23

    IPC分类号: G01T1/185 G01T1/29

    CPC分类号: G01T1/2935 G01T1/185

    摘要: Two-dimensional detector of ionizing radiation and process for manufacturing this detectorThis detector comprises sheets (4) emitting particles by interaction with ionizing radiation, semiconducting layers (6) that alternate with the sheets and can be ionized by the particles, and groups of conducting tracks (22) in contact with the layers. Means (26) of creating an electric field are used to collect charge carriers generated in the layers due to interaction with particles, through the tracks. For example, the layer and the corresponding tracks are formed on each sheet and the sheets are then assembled together. For example, the invention is applicable to radiography and can achieve good X-ray detection efficiency and high spatial resolution at the same time.

    摘要翻译: 电离辐射的二维检测器和用于制造该检测器的方法该检测器包括通过与电离辐射相互作用发射粒子的片材(4),与片材交替并可被粒子电离的半导电层(6)和导电轨迹组 (22)与层接触。 用于产生电场的装置(26)用于收集通过轨道与颗粒的相互作用而在层中产生的电荷载流子。 例如,在每个片材上形成层和对应的轨道,然后将片材组装在一起。 例如,本发明可应用于射线照相,并且可以同时实现良好的X射线检测效率和高空间分辨率。

    Method and apparatus for imaging by means of ionizing radiation
    12.
    发明授权
    Method and apparatus for imaging by means of ionizing radiation 有权
    通过电离辐射成像的方法和装置

    公开(公告)号:US06600161B2

    公开(公告)日:2003-07-29

    申请号:US10037837

    申请日:2002-01-02

    IPC分类号: G01T116

    CPC分类号: G01T1/17 G01T7/00

    摘要: A method of imaging by means of ionizing radiation in which a first measurement f1 is performed by integrating a detection signal generated by each detection cell of an ionizing radiation detector while simultaneously making a second measurement f2 by counting ionizing rays, and then an estimate of the flux is calculated, in particular by using the formula f=&agr;·f1+(1−&agr;)·f2 where &agr; is an increasing function over the range 0 to 1 of a first estimate fe of the flux f, which first estimate is established as a function of at least one of the first and second measurements f1 and f2.

    摘要翻译: 一种通过电离辐射进行成像的方法,其中通过对由电离辐射探测器的每个检测单元产生的检测信号进行积分而进行第一测量f1,同时通过计数电离射线同时进行第二测量f2,然后估计 特别地通过使用公式来计算通量,其中α是通量f的第一估计值fe的范围0到1的递增函数,其中第一估计被确定为第一和第二测量f1中的至少一个的函数 和f2。

    Method and device for determining the attenuation function of an object
with respect to the transmission of a reference material thickness
    13.
    发明授权
    Method and device for determining the attenuation function of an object with respect to the transmission of a reference material thickness 失效
    用于确定物体相对于参考材料厚度的透射的衰减函数的方法和装置

    公开(公告)号:US5687210A

    公开(公告)日:1997-11-11

    申请号:US553427

    申请日:1996-09-05

    CPC分类号: G01N23/083

    摘要: The object's transmission function is expressed as a finite power expansion of a reference-material reference thickness, each expansion power being equal to a ratio of a reference-material thickness to the reference thickness; the expansion coefficients are determined from the measurements of the intensities transmitted by the selected various thicknesses, including zero thickness, of the reference material exposed to a test beam evincing consecutively several energy spectra and from the measurements of the intensity transmitted by the object exposed to this same variable-spectrum test beam; the attenuation function is derived from the determination of the transmission function.

    摘要翻译: PCT No.PCT / FR94 / 00581 Sec。 371日期:1996年9月5日 102(e)日期1996年9月5日PCT 1994年5月16日PCT PCT。 出版物WO94 / 28398 日期1994年12月8日该物体的传递函数表示为参考材料参考厚度的有限功率膨胀,每个膨胀功率等于参考材料厚度与参考厚度的比值; 膨胀系数是从暴露于连续显示几个能量谱的测试光束的参考材料的选定各种厚度(包括零厚度)所传输的强度的测量值和从暴露于该能量的对象传输的强度的测量值 相同的可变光谱测试光束; 衰减函数是从传输函数的确定导出的。

    Method and installation for imaging
    14.
    发明授权
    Method and installation for imaging 失效
    成像方法和安装

    公开(公告)号:US08447115B2

    公开(公告)日:2013-05-21

    申请号:US12517437

    申请日:2007-11-30

    IPC分类号: G06K9/46 H01L27/146 G01N21/86

    CPC分类号: G06T5/50

    摘要: (a) a measurement F0(x, y, δt) of the signals detected is provided; (b) on the one hand a first value F1(X, y, δt) is provided, termed the “integration” value and on the other hand a second value F2(x, y, δt) termed the “count” value is provided; (c) a value Fe(x0, y0, δt) of a number of signals is estimated from a combination of first F1(X0, y0, δt) and second F2(x0, y0, δt) values, on the basis of a criterion of detection in the neighborhood.

    摘要翻译: (a)提供检测到的信号的测量值F0(x,y,deltat); (b)一方面提供称为“积分”值的第一值F1(X,y,deltat),另一方面称为“计数”值的第二值F2(x,y,deltat) 提供; (c)根据第一F1(X0,y0,deltat)和第二F2(x0,y0,deltat)值的组合,基于a(x,y,...,t)来估计多个信号的值Fe(x0,y0,deltat) 附近的检测标准。

    Bidimensional detector of ionizing radiation and manufacturing process for this detector
    16.
    发明申请
    Bidimensional detector of ionizing radiation and manufacturing process for this detector 审中-公开
    电离辐射的二维检测器和该检测器的制造过程

    公开(公告)号:US20050092928A1

    公开(公告)日:2005-05-05

    申请号:US10989278

    申请日:2004-11-17

    IPC分类号: G01T1/185 G01T1/29

    CPC分类号: G01T1/2935 G01T1/185

    摘要: Bidimensional detector of ionizing radiation and manufacturing process for the detector. The detector includes a block created from a material which releases secondary particles by interaction with incident ionizing radiation with an energy level greater than or equal to 100 keV. The thickness of the block is at least equal to one-tenth of the mean free path traveled by the incident ionizing radiation particles in the material. Parallel slits run through the block and the slits are filled with a fluid configured to interact with the secondary particles to produce other particles representing the radiation. The block, and then the slits, are formed, for example, by waterjet cutting, electrical discharge machining, or roll-out stretch wire. The bidimensional detector can be used, for example, for radiographic purposes.

    摘要翻译: 电离辐射的二维检测器和检测器的制造过程。 检测器包括由材料制成的块,该材料通过与能级等于或等于100keV的入射电离辐射的相互作用释放二次粒子。 块的厚度至少等于材料中入射电离辐射粒子行进的平均自由程的十分之一。 平行的狭缝贯穿块体,并且狭缝填充有配置成与二次颗粒相互作用以产生表示辐射的其他颗粒的流体。 例如,通过水刀切割,放电加工或拉出拉伸丝来形成块体,然后形成狭缝。 二维检测器可用于例如用于放射照相目的。

    Method of processing autoradiography image
    17.
    发明授权
    Method of processing autoradiography image 有权
    处理放射自显影图像的方法

    公开(公告)号:US06194714B1

    公开(公告)日:2001-02-27

    申请号:US09209487

    申请日:1998-12-11

    IPC分类号: G01T129

    CPC分类号: G01T1/2942 G01T1/2935

    摘要: This is a method of generating a plurality of images of a substrate from radioactive radiation coming from a plurality of radioactive tracers contained in the substrate. To this end, data representing the different detection signals generated by a detector are memorised, individually for each radioactive emission detected during a certain observation period, then statistical processing of these data is carried out in such a way as to estimate the images of the different tracers which correspond best to the set of memorised data.

    摘要翻译: 这是从包含在基板中的多个放射性示踪剂的放射线辐射产生基板的多个图像的方法。 为此,分别记录由检测器生成的不同检测信号的数据,以便在某一观察期间检测到的每个放射性发射单独地记录这些数据的统计处理,以便估计不同的图像的图像 与记忆数据集最相符的追踪器。

    High resolution method and apparatus for localizing neutral particles
    18.
    发明授权
    High resolution method and apparatus for localizing neutral particles 失效
    用于定位中性粒子的高分辨率方法和装置

    公开(公告)号:US5038043A

    公开(公告)日:1991-08-06

    申请号:US426389

    申请日:1989-10-25

    摘要: The invention relates to a neutral particle detector for providing one-dimensional analysis of a flux (14) of neutral particles which reach it in a sheet. The detector comprises a solid plane converter (17) disposed at a grazing incidence, a grid of charge amplifying wires (18) making use of stimulated ionization of a gas, and charge collecting tracks (19). The tracks are disposed in the immediate proximity of the converter and are subjected to the same electrical potential as the converter. The invention is applicable to imaging.

    摘要翻译: 本发明涉及一种中性粒子检测器,用于提供在片材中到达其的中性粒子通量(14)的一维分析。 检测器包括以掠入射设置的固体平面转换器(17),利用气体的受激电离的电荷放大电线(18)和电荷收集轨道(19)。 轨道设置在转换器的紧邻附近,并经受与转换器相同的电位。 本发明适用于成像。