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1. 发明授权

US5065316A Process for locating nuclear radiation with reduction of moire phenomenon 失效
标题翻译：用减少微孔子定位核辐射的方法
公开(公告)号：US5065316A
公开(公告)日：1991-11-12
申请号：US198400
申请日：1988-05-25
申请人： Michel Tararine , Bernard Thevenin , Monique Marcaud
发明人： Michel Tararine , Bernard Thevenin , Monique Marcaud
IPC分类号： G01T1/164
CPC分类号： G01T1/1642 , G01T1/1647 , A61B6/4258
摘要： The coordinates X and Y of the location of a scintillation crystal excited by nuclear radiation are determined as a function of the signals X.sup.+, X.sup.-, Y.sup.+, Y.sup.- produced conventionally by an electronic circuit associated with the scintillation crystal. The signals X.sup.+, X.sup.-, Y.sub.+ and Y.sup.- are digitized and the digital coordinate X (respectively Y) is obtained as the product of a first digital data item X.sup.+ -X.sup.- (respectively Y.sup.+ -Y.sup.-) and a second digital data item inversely proportional to the energy of the nuclear radiation received. To prevent beats in the value of the coordinates X and Y, which leads to a moire phenomenon in the radiation image, a random element is introduced into the calculation, for example by adding p random bits to the first digital data item.
摘要翻译：由核辐射激发的闪烁晶体的位置的坐标X和Y被确定为通常由与闪烁晶体相关的电子电路产生的信号X +，X，Y +，Y-的函数。信号X +，X，Y +和Y-被数字化，数字坐标X（分别为Y）作为第一数字数据项X + -X-（分别为Y + -Y-）和第二数字数据项与接收到的核辐射的能量成反比。为了防止在辐射图像中导致莫尔现象的坐标X和Y的值中的跳动，例如通过将p个随机位添加到第一数字数据项中，将随机元素引入到计算中。

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