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    • 18. 发明授权
    • X-ray, neutron or electron diffraction method using an imaging plate and
apparatus therefor
    • 使用成像板的X射线,中子或电子衍射方法及其装置
    • US5936255A
    • 1999-08-10
    • US890623
    • 1997-07-09
    • Kenji NakanishiAkira TsukamotoKeiichi Tanabe
    • Kenji NakanishiAkira TsukamotoKeiichi Tanabe
    • G01N23/20G01N23/205G01N23/223G21K1/06G21K4/00G01N23/207
    • G21K1/06G21K2201/068
    • An X-ray, neutron or electron diffraction method, which is devoid of the defects of conventional diffraction apparatus using an imaging plate, which can analyzing a sample, in a non-destructive mode without contact and with a good S/N ratio, even when the sample significantly generates fluorescence or scattered X-rays. The method includes the steps of irradiating a predetermined area of the sample with an X-ray, neutron or electron beam whose axis is oriented at a fixed direction to obtain a diffraction ray, rotating the sample while maintaining the irradiated predetermined area substantially unchanged and while maintaining the angle between the axis of the X-ray, neutron or electron beam relative to the tangential plane of the predetermined area substantially unchanged, forming an image of the diffraction ray from the sample during the rotation of the sample through every predetermined angle using an imaging plate, reading a data of the image formed on the imaging plate to obtain an output data for each rotation of the sample through the predetermined angle, and processing the output data to obtain desired analysis information.
    • 一种X射线,中子或电子衍射方法,其不含常规的使用成像板的衍射装置的缺陷,该成像板能够以非破坏性的方式分析样品,无接触和良好的S / N比,甚至 当样品显着产生荧光或散射的X射线。 该方法包括以下步骤:用X轴,中子或电子束照射样品的预定区域,该X射线,中子或电子束的轴线沿固定方向取向以获得衍射光线,使样品旋转,同时保持照射的预定面积基本上不变,同时 保持X射线,中子或电子束相对于预定面积的切向面之间的角度基本上不变,在样品旋转期间通过每个预定角度形成来自样品的衍射光线的图像,使用 读取形成在成像板上的图像的数据,以获得用于样品的每次旋转的预定角度的输出数据,并处理输出数据以获得期望的分析信息。