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    • 8. 发明授权
    • Scintillator-based micro-radiographic imaging device
    • 基于闪烁体的微放射成像装置
    • US07414245B2
    • 2008-08-19
    • US11409461
    • 2006-04-20
    • Richard G. Trissel
    • Richard G. Trissel
    • G01T1/20G21K7/00
    • G21K7/00C09K11/61G21K4/00
    • A scintillation based imaging system. The device utilizes a single-crystal inorganic scintillator to convert ionizing radiation to light in a spectral range or ranges within the visible or ultraviolet spectral ranges. The conversion takes place inside the single crystal material, preserving special resolution. The single crystal scintillator is sandwiched between a first plate that is substantially transparent to the ionization radiation and a second plate that is transparent to the visible or ultraviolet light. The ionization radiation is directed from the submicron source through a target to create a shadow image of the target inside the scintillator crystal. Several submicron sources of radiation are described. These include submicron x-ray and high-energy ultraviolet sources, submicron electron beam sources, submicron alpha particle sources, submicron proton sources, submicron positron sources and sub-micron neutron sources. Also, Applicants describe submicron spot size x-ray sources produced using electron beams alpha particles, protons and positrons. In preferred embodiments larger size sources are converted to submicron sources by focusing the radiation to a submicron neck, by blocking all but a submicron portion using a pinhole arrangement or by channeling the radiation with a pinhole funnel.
    • 一种基于闪烁的成像系统。 该装置利用单晶无机闪烁体将电离辐射转换成光谱范围内的光或在可见光或紫外光谱范围内的范围。 转换发生在单晶材料内,保留特殊分辨率。 单晶闪烁体夹在对电离辐射基本上透明的第一板和对可见光或紫外光透明的第二板之间。 电离辐射从亚微米源通过目标引导,以在闪烁体晶体内部产生目标的阴影图像。 描述了几个亚微米辐射源。 这些包括亚微米X射线和高能量紫外光源,亚微米电子束源,亚微米α粒子源,亚微米质子源,亚微米正电子源和亚微米中子源。 此外,申请人描述了使用电子束α粒子,质子和正电子产生的亚微米尺寸的x射线源。 在优选实施例中,通过将辐射聚焦到亚微米颈部,通过使用针孔装置阻挡除了亚微米部分之外的所有部分或通过用针孔漏斗引导辐射,将较大尺寸的光源转换成亚微米光源。