公开(公告)号：WO2013123132A1

公开(公告)日：2013-08-22

申请号：PCT/US2013/026055

申请日：2013-02-14

Applicant: L-3 COMMUNICATIONS SECURITY AND DETECTION SYSTEMS, INC.

Inventor： SCHMITT, Michael, H.

IPC: G01N23/203

CPC classification number: G01N23/201 ,  G01N23/20 ,  G01N23/203 ,  G01N2223/051 ,  G01N2223/054

Abstract: Radiation is directed at an object, and radiation scattered by the object is sensed. An angular distribution of scatter in the sensed scattered radiation relative to a path of the radiation directed at the object is determined, and the angular distribution is evaluated. One or more atomic numbers, or effective atomic numbers, of materials composing the object is determined based on evaluating the angular distribution.

Abstract translation: 辐射指向物体，并且感测被物体散射的辐射。 确定感测的散射辐射相对于朝向物体的辐射的路径的角度分布，并且评估角度分布。 基于评估角分布来确定构成对象的材料的一个或多个原子数或有效原子序数。

公开(公告)号：WO2016141956A1

公开(公告)日：2016-09-15

申请号：PCT/EP2015/054737

申请日：2015-03-06

Applicant: GE SENSING & INSPECTION TECHNOLOGIES GMBH

Inventor： SUPPES, Alexander ,  ROTHE, Nils

IPC: G01N23/04 ,  H04N5/32 ,  G21K1/02

CPC classification number: G01N23/046 ,  A61B6/032 ,  A61B6/5282 ,  G01N2223/051 ,  G01N2223/316 ,  G01N2223/401 ,  G21K1/02

Abstract: Scatter correction for tomography: for each position, two images are aquired, a first image without and a second image with a scatter reducing aperture plate (50). A scatter image is calculated by subtracting the second image from the first image. The apertures (48) in the scatter reducing plate (50) are arranged hexagonally in order to optimise the packaging density of the apertures.

Abstract translation: 断层扫描的散射校正：对于每个位置，两个图像都被捕获，没有第一个图像，第二个图像具有散射减小光圈板（50）。 通过从第一图像中减去第二图像来计算散射图像。 散射减压板（50）中的孔（48）以六边形排列，以便优化孔的包装密度。