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1. 发明授权

US4954709A High resolution directional gamma ray detector 失效
标题翻译：高分辨率定向伽马射线探测器
公开(公告)号：US4954709A
公开(公告)日：1990-09-04
申请号：US394331
申请日：1989-08-16
申请人： Arie Zigler , Yosset Eisen , Yossef Eisen
发明人： Arie Zigler , Yosset Eisen , Yossef Eisen
IPC分类号： G01T1/28 , G01T1/29
CPC分类号： G01T1/28 , G01T1/2907
摘要： A high resolution directional gamma ray detector includes a thin piece of foil, such as tantalum, which reacts with gamma rays incident to the edge of the foil to generate electron/positron pairs. Gamma rays originating from directions other than a direction of interest are shielded from the foil by shielding plates. An opening between the foil by shielding plates. An opening between two collimating plates permits passage of gamma rays originating from a direction of interest and allows gamma rays originating from a direction of interest to react with the foil. The generated electron and positron cause ionization in a plurality of cells. Signals resulting from these ionizations are processed by an electronic computation system through the use of coincidence processing to determine whether the signals are the result of a reaction between the foil and a gamma ray which passed through the collimator opening.
摘要翻译：高分辨率定向伽马射线检测器包括薄片箔，例如钽，其与入射到箔的边缘的伽马射线反应以产生电子/正电子对。源于除感兴趣方向以外的方向的伽马射线通过屏蔽板与箔屏蔽。通过屏蔽板之间的开口。两个准直板之间的开口允许源自感兴趣方向的伽马射线通过并且允许源自感兴趣方向的伽马射线与箔反应。所产生的电子和正电子导致多个电池中的电离。由这些电离产生的信号由电子计算系统通过使用重合处理来处理，以确定信号是否是箔和通过准直器开口的伽马射线之间的反应的结果。

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