公开(公告)号：US4742340A

公开(公告)日：1988-05-03

申请号：US937862

申请日：1986-12-04

申请人： Israel Nowik ,  Jay L. Hirshfield

发明人： Israel Nowik ,  Jay L. Hirshfield

IPC分类号： G01N23/221 ,  B07C5/346 ,  G01V3/00 ,  G01V5/00 ,  G01V15/00 ,  G06K7/10 ,  G06K19/10 ,  G07F7/08 ,  G08B13/24 ,  G08B13/18

CPC分类号： G08B13/2442 ,  B07C5/346 ,  G06K19/10 ,  G06K7/10009 ,  G07F7/086 ,  G08B13/2445 ,  G08B13/2471

摘要： A counterfeit detecting method and apparatus are provided for detecting the authenticity of an article having a label containing an isotope of a chemical element enriched to a predetermined amount. The apparatus comprises a housing, a source of gamma radiation positioned in the housing, and a gamma radiation detector positioned in the housing for detecting the radiation from the source. The gamma radiation source is selected to emit radiation which can stimulate a selected nuclear transition in the label material. A calculating device, such as a microprocessor, is coupled to a detector for calculating the ratio of the number of gamma rays counted by the detector during a predetermined period of time when the article is not in position near the receiving member (N.sub.O) to the number of the gamma rays counted by the detector during a period of time equal to the predetermined period when the article is positioned near the receiving member (N.sub.R), and for calculating the ratio of the number of gamma rays counted by the detector during the period of time when the article is not in position near the receiving member (N.sub.O) to the number of gamma rays counted during a period of time equal to the predetermined period when the source is vibrated by the vibrating device (N.sub.E) and for calculating the ratio (N.sub.R /N.sub.O)/(N.sub.E /N.sub.O) and thus N.sub.R /N.sub.E. An output device provides an output indicating whether or not N.sub.R /N.sub.E and N.sub.E /N.sub.O are within a predetermined range.Also, an article is provided capable of being authenticated, in which the article comprises a non-metallic body and a label fixed to the body. The label includes an isotope of a chemical element enriched to a predetermined amount.

摘要翻译： 提供了一种用于检测具有包含富含预定量的化学元素的同位素的标签的物品的真实性的假冒检测方法和装置。 该装置包括壳体，位于壳体中的伽马辐射源，以及位于壳体中的伽马辐射探测器，用于检测来自源的辐射。 伽马辐射源被选择以发射可以刺激标签材料中选择的核转变的辐射。 诸如微处理器的计算装置被耦合到检测器，用于计算在物品不接近接收构件（NO）的位置的预定时间段期间由检测器计数的伽马射线的数量的比率 在等于物品位于接收构件（NR）附近的预定时段的时间段期间由检测器计数的伽马射线的数量，以及用于计算在该期间中由检测器计数的伽马射线数的比率 （NO）附近的物品相对于等于振动装置（NE）振动源的预定时间段的时间段中计数的伽马射线数量，并计算比率时， （NR / NO）/（NE / NO），因此NR / NE。 输出装置提供表示NR / NE和NE / NO是否在预定范围内的输出。 此外，提供能够被认证的物品，其中物品包括非金属主体和固定到身体的标签。 该标签包括富集至预定量的化学元素的同位素。

公开(公告)号：US4862143A

公开(公告)日：1989-08-29

申请号：US150807

申请日：1988-02-01

申请人： Jay L. Hirshfield ,  Israel Nowik

发明人： Jay L. Hirshfield ,  Israel Nowik

IPC分类号： B07C5/346 ,  G06K7/10 ,  G06K19/10 ,  G07F7/08 ,  G08B13/24

CPC分类号： G08B13/2442 ,  B07C5/346 ,  G06K19/10 ,  G06K7/10009 ,  G07F7/086 ,  G08B13/2445 ,  G08B13/2471

摘要： A counterfeit detecting method and apparatus are provided for detecting the authenticity of an article having a label containing an isotope of a chemical element. The apparatus comprises a housing, a source of gamma radiation positioned in the housing, and a gamma radiation detector positioned in the housing for detecting the radiation from the source. The gamma radiation source is selected to emit radiation which can stimulate a selected nuclear transition in the label material. A calculating device, such as a microprocessor is coupled to a detector for calculating the ratio of the number of gamma rays counted by the detector during a predetermined period of time when the article is not in position near the receiving member (N.sub.O) to the number of the gamma rays counted by the detector during a period of time equal to the predetermined period when the article is positioned near the receiving means (N.sub.R), and for calculating the ratio of the number of gamma rays counted by the detector during the period of time when the article is not in position near the receiving means (N.sub.O) to the number of gamma rays counted during a period of time equal to the predetermined period when the source is vibrated by the vibrating device (N.sub.E) and for calculating the ratio (N.sub.R /N.sub.O)/(N.sub.E /N.sub.O) and thus N.sub.R /N.sub.E. An output device provides an output indicating whether N.sub.R /N.sub.E and N.sub.E /N.sub.O are within a predetermined range.Also, an article is provided capable of being authenticated, in which the article comprises a body substantially transparent to the gamma rays and a label fixed to the body. The label includes an isotope of a chemical element.

摘要翻译： 提供了一种用于检测具有包含化学元素的同位素的标签的物品的真实性的假冒检测方法和装置。 该装置包括壳体，位于壳体中的伽马辐射源，以及位于壳体中的伽马辐射探测器，用于检测来自源的辐射。 伽马辐射源被选择以发射可以刺激标签材料中选择的核转变的辐射。 诸如微处理器的计算装置被耦合到检测器，用于计算在物品不在接收构件（NO）附近的预定时间段期间由检测器计数的伽马射线的数量与数量的比率 在等于物品位于接收装置（NR）附近的预定时间段的时间段期间由检测器计数的伽马射线的伽马射线，并且用于计算在所述接收装置（NR）期间由检测器计数的伽马射线数的比率 当物品不在接收装置（NO）附近的位置处于与振动装置（NE）振动源的预定时间段期间计数的伽马射线数量并计算比率（ NR / NO）/（NE / NO），因此NR / NE。 输出装置提供指示NR / NE和NE / NO是否在预定范围内的输出。 此外，提供能够被认证的物品，其中物品包括对伽马射线基本上透明的身体和固定到身体的标签。 该标签包括化学元素的同位素。