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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
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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公开(公告)号：US20140326900A1
公开(公告)日：2014-11-06
申请号：US14242621
申请日：2014-04-01
IPC分类号： G21G1/00
CPC分类号： G21G1/001 , G21G1/10 , G21G1/12 , G21G2001/0094
摘要： Methods and apparatus for synthesizing radiochemical compounds are provided. The methods include generating a quasi-neutral plasma jet, and directing the plasma jet onto a radionuclide precursor to provide one or more radionuclides. The radionuclides can be used to prepare radiolabeled compounds, such as radiolabeled biomarkers.
摘要翻译： 提供了合成放射化学化合物的方法和装置。 这些方法包括产生准中性等离子体射流，并将等离子体射流引导到放射性核素前体上以提供一种或多种放射性核素。 放射性核素可用于制备放射性标记的化合物，例如放射性标记的生物标志物。
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公开(公告)号：US20120021361A1
公开(公告)日：2012-01-26
申请号：US13253295
申请日：2011-10-05
IPC分类号： G03F7/20
CPC分类号： G02B5/008 , G02B5/22 , G02B5/26 , G03B9/02 , G03B11/00 , Y10S977/701 , Y10S977/773 , Y10S977/932
摘要： A radiation-protection device is provided that includes a substrate and a surface structure formed on the substrate. The surface structure has an arrangement and interacts with radiation and the substrate to at least (a) substantially transmit or attenuate radiation at a wavelength and an energy below a threshold energy, and (b) substantially reflect radiation at the wavelength and an energy above the threshold energy.
摘要翻译： 提供了一种辐射保护装置，其包括基板和形成在基板上的表面结构。 表面结构具有排列并与辐射和衬底相互作用以至少（a）基本上透射或衰减波长和低于阈值能量的能量的辐射，以及（b）基本上反射波长处的辐射和高于 阈值能量。
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公开(公告)号：US06733439B2
公开(公告)日：2004-05-11
申请号：US09804487
申请日：2001-03-12
申请人： Arie Zigler
发明人： Arie Zigler
IPC分类号： A61B104
CPC分类号： A61B1/00082 , A61M25/10 , A61M2025/1047
摘要： A centering mechanism accurately centers a probe as it moves through a pathway having a changing shape, diameter, and direction. More specifically, the invention provides a probe centering device that includes a ring shaped resilient balloon, a front stopper that fixes a location of a first side of the balloon, and a biasing mechanism that applies a biasing force to a second side of the balloon. The biasing mechanism includes a rear stopper, a spring and a pusher, wherein the spring is located between the rear stopper and the pusher and the pusher is in contact with the second side of the balloon. A flexible member is preferably provided to cover and protect the biasing mechanism.
摘要翻译： 当探针移动通过具有变化的形状，直径和方向的路径时，定心机构将探针精确地居中。 更具体地，本发明提供了一种探针定心装置，其包括环形弹性球囊，固定球囊第一侧的位置的前止动件和向气球的第二侧施加偏置力的偏压机构。 偏置机构包括后挡块，弹簧和推动器，其中弹簧位于后挡块和推动器之间，并且推动器与气球的第二侧接触。 优选地设置柔性构件以覆盖和保护偏置机构。
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