DETECTION DEVICE FOR DETECTING RADIATION
    21.
    发明申请
    DETECTION DEVICE FOR DETECTING RADIATION 审中-公开
    用于检测辐射的检测装置

    公开(公告)号:WO2008149292A2

    公开(公告)日:2008-12-11

    申请号:PCT/IB2008/052170

    申请日:2008-06-04

    CPC classification number: G01T1/1648

    Abstract: The present invention relates to a detection device for detecting radiation emitted from a radiation source, wherein the detection device (6) comprises a detection surface (19) and lamellae (18) protruding from the detection surface (19), wherein the lamellae (18) comprise a first end portion (20) close to the detection surface (19) and a second end portion (21) remote from the detection surface (19) and wherein the first end portion (20) has a larger width than the second end portion (21). The invention relates further to a computed tomography apparatus comprising this detection device.

    Abstract translation: 本发明涉及一种用于检测从辐射源发射的辐射的检测装置,其中检测装置(6)包括从检测表面(19)突出的检测表面(19)和薄片(18),其中薄片(18) )包括靠近检测表面(19)的第一端部(20)和远离检测表面(19)的第二端部(21),并且其中第一端部(20)的宽度大于第二端 部分(21)。 本发明进一步涉及包括该检测装置的计算机断层摄影装置。

    EFFECTIVE DUAL-ENERGY X-RAY ATTENUATION MEASUREMENT
    22.
    发明申请
    EFFECTIVE DUAL-ENERGY X-RAY ATTENUATION MEASUREMENT 审中-公开
    有效的双能量X射线衰减测量

    公开(公告)号:WO2007110795A2

    公开(公告)日:2007-10-04

    申请号:PCT/IB2007/050879

    申请日:2007-03-14

    Abstract: It is described a method and a CT system for measuring dual-energy X- ray attenuation data of an object. The CT system comprises a rotatable holder, an X-ray source comprising two different X-ray focus points, and an X-ray detection device comprising a plurality of detector elements exhibiting different spectral sensitivities. The method comprises the steps of (a) adjusting the X-ray source such that it emits X-rays originating a first focus point, (b) acquiring first attenuation data separately with first detector elements and with second detector elements, (c) moving the X-ray focus discretely to a second focus point, and (d) acquiring second attenuation data separately with both types of detector elements. Thereby the two focus points are spatially separated from each such that a first beam path originating from the first focus point penetrates a certain voxel within the object and impinges on a first detector element and a second beam path originating from the second X-ray focus point penetrates the same voxel and impinges on a second detector element.

    Abstract translation: 描述了用于测量物体的双能X射线衰减数据的方法和CT系统。 CT系统包括可旋转保持器,包括两个不同X射线焦点的X射线源和包括表现出不同光谱灵敏度的多个检测器元件的X射线检测装置。 该方法包括以下步骤:(a)调整X射线源,使其发射源自第一焦点的X射线,(b)分别用第一检测器元件和第二检测器元件获取第一衰减数据,(c)移动 所述X射线焦点离散地到达第二焦点,以及(d)分别用两种类型的检测器元件获取第二衰减数据。 从而两个聚焦点在空间上分离开,使得源自第一聚焦点的第一光束路径穿透物体内的某个体素并撞击在第一X射线焦点上的第一检测器元件和第二光束路径 穿透相同的体素并撞击在第二检测器元件上。

    COHERENT SCATTER IMAGING
    24.
    发明申请
    COHERENT SCATTER IMAGING 审中-公开
    相干散射成像

    公开(公告)号:WO2006027758A2

    公开(公告)日:2006-03-16

    申请号:PCT/IB2005/052952

    申请日:2005-09-09

    CPC classification number: G01T1/1644 A61B6/03 A61B6/483 G01V5/0025

    Abstract: A CSI system is described that uses pencil beams (40,42,44,46) through a sample (30) having a region of interest (32). Each coherent scatter spectrum of sample beams (40, 44) through the region of interest is subtracted by the spectra using respective reference beams (42, 46). The measurements are combined to determine features of the region of interest (32) whilst minimising the effect of features in the rest of the sample (30).

    Abstract translation: 描述了使用笔形波束(40,42,44,46)通过具有感兴趣区域(32)的样本(30)的CSI系统。 使用各自的参考光束(42,46),通过光谱减去样本光束(40,44)通过感兴趣区域的每个相干散射光谱。 将测量结果合并以确定感兴趣区域的特征(32),同时最小化样本其余部分(30)中特征的影响。

    COMPUTED TOMOGRAPHY APPARATUS
    26.
    发明申请
    COMPUTED TOMOGRAPHY APPARATUS 审中-公开
    计算机断层摄影装置

    公开(公告)号:WO2004002316A8

    公开(公告)日:2004-12-23

    申请号:PCT/IB0302904

    申请日:2003-06-19

    Abstract: The invention relates to a computed tomography apparatus (CT apparatus) for imaging by means of radiation having traversed an object to be examined (that is, directly transmitted radiation), as well as by means of radiation scattered by the object to be examined, which apparatus includes a radiation source (S), a detector arrangement (16) and a device whereby the radiation (41a) having traversed the object to be examined can be blocked at least to an extent that the intensity incident on the detector arrangement (16) does not substantially exceed the intensity of radiation (41b) scattered by the object (13) to be examined and incident on the detector arrangement (16). The invention enables the detection of scattered radiation (CSCT mode) which is not affected by crosstalk from the transmitted radiation, even when the detector arrangement does not satisfy severe requirements as regards crosstalk properties and/or is configured as a single-row detector arrangement.

    Abstract translation: 本发明涉及用于借助于已经穿过待检查对象(即,直接透过的辐射)的辐射进行成像的计算机断层摄影设备(CT设备),以及借助于待检查对象散射的辐射进行成像 装置包括辐射源(S),检测器装置(16)和装置,借此可以将已经横过待检查对象的辐射(41a)至少阻挡到入射在检测器装置(16)上的强度的程度, 基本上不超过被检查对象(13)散射并入射到检测器装置(16)上的辐射(41b)的强度。 即使当检测器装置不满足关于串扰特性的严格要求和/或被配置为单行检测器装置时,本发明也能够检测不受来自发射辐射的串扰影响的散射辐射(CSCT模式)。

    COMPUTED TOMOGRAPHY APPARATUS
    28.
    发明申请
    COMPUTED TOMOGRAPHY APPARATUS 审中-公开
    计算机摄影装置

    公开(公告)号:WO2004002316A1

    公开(公告)日:2004-01-08

    申请号:PCT/IB2003/002904

    申请日:2003-06-19

    Abstract: The invention relates to a computed tomography apparatus (CT apparatus) for imaging by means of radiation having traversed an object to be examined (that is, directly transmitted radiation), as well as by means of radiation scattered by the object to be examined, which apparatus includes a radiation source (S), a detector arrangement (16) and a device whereby the radiation (41a) having traversed the object to be examined can be blocked at least to an extent that the intensity incident on the detector arrangement (16) does not substantially exceed the intensity of radiation (41b) scattered by the object (13) to be examined and incident on the detector arrangement (16). The invention enables the detection of scattered radiation (CSCT mode) which is not affected by crosstalk from the transmitted radiation, even when the detector arrangement does not satisfy severe requirements as regards crosstalk properties and/or is configured as a single-row detector arrangement.

    Abstract translation: 本发明涉及一种用于通过已经穿过被检查物体(即,直接传播的辐射)的辐射进行成像的计算机断层摄影装置(CT装置),以及通过待检查对象散射的辐射,其中 装置包括辐射源(S),检测器装置(16)和装置,其中穿过被检查物体的辐射(41a)至少可以被阻挡到入射到检测器装置(16)上的强度的程度, 基本上不超过待检测物体(13)散射并入射在检测器装置(16)上的辐射强度(41b)。 即使当检测器装置不满足关于串扰特性的严格要求和/或被配置为单行检测器装置时,本发明能够检测不受来自透射辐射的串扰影响的散射辐射(CSCT模式)。

    DIFFERENTIAL PHASE CONTRAST IMAGING WITH ENERGY SENSITIVE DETECTION
    29.
    发明申请
    DIFFERENTIAL PHASE CONTRAST IMAGING WITH ENERGY SENSITIVE DETECTION 审中-公开
    具有能量敏感检测的差分相位对比成像

    公开(公告)号:WO2013030698A1

    公开(公告)日:2013-03-07

    申请号:PCT/IB2012/054032

    申请日:2012-08-08

    Abstract: For correcting differential phase image data 52, differential phase image data 52 acquired with radiation at different energy levels is received, wherein the differential phase image data 52 comprises pixels 60, each pixel 60 having a phase gradient value 62a, 62b, 62c for each energy level. After that an energy dependent behavior of phase gradient values 62a, 62b, 62c of a pixel 60 is determined and a corrected phase gradient value 68 for the pixel 60 is determined from the phase gradient values 62a, 62b, 62c of the pixel 60 and a model for the energy dependence of the phase gradient values 62a, 62b, 62c.

    Abstract translation: 为了校正微分相位图像数据52,接收以不同能量级别的辐射获取的差分相位图像数据52,其中差分相位图像数据52包括像素60,每个像素60具有每个能量的相位梯度值62a,62b,62c 水平。 之后,确定像素60的相位梯度值62a,62b,62c的与能量相关的行为,并且根据像素60的相位梯度值62a,62b,62c确定像素60的校正相位梯度值68和 模型,用于相位梯度值62a,62b,62c的能量依赖性。

    COMPUTED TOMOGRAPHY INSPECTION
    30.
    发明申请
    COMPUTED TOMOGRAPHY INSPECTION 审中-公开
    计算机断层扫描检查

    公开(公告)号:WO2008099334A3

    公开(公告)日:2008-12-18

    申请号:PCT/IB2008050496

    申请日:2008-02-12

    CPC classification number: G01V5/0025 G01V5/005 G01V5/0075

    Abstract: A method includes detecting transmission radiation, from an x-ray source, that traverses an inspection region and an object therein and emission radiation from a radioactive material in the object, generating a signal indicative of the detected radiation, energy resolving the detected radiation, and processing the energy resolved radiation to identify detected radiation that has energy corresponding to the radioactive material.

    Abstract translation: 一种方法包括检测来自X射线源的穿过检查区域和其中的物体的发射辐射以及来自物体中的放射性材料的发射辐射,生成指示检测到的辐射的信号,解析检测到的辐射的能量,以及 处理能量分解的辐射以识别具有对应于放射性材料的能量的检测到的辐射。

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