会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 21. 发明授权
    • Multiple energy scintillation camera spatial correction method and
apparatus
    • 多能量闪烁摄像机空间校正方法及装置
    • US5936248A
    • 1999-08-10
    • US2200
    • 1997-12-31
    • Floribertus P. M. Heukensfeldt Jansen
    • Floribertus P. M. Heukensfeldt Jansen
    • G01T1/164
    • G01T1/1642G01T1/1647A61B6/4258
    • A method for use with a scintillation camera which detects radiation events having energies within two different energy ranges and distorts spatial coordinates of detected events in the two ranges differently, a spatial coordinate set is determined for each event, each coordinate set is adjusted using a first set of predetermined correction factors calculated to eliminate distortion in events within a first of the energy ranges yielding first corrected coordinate sets corresponding to events within the first energy range and adjusted sets corresponding to events within the second energy range, adjusted sets are further adjusted using a second set of predetermined correction factors calculated to eliminate distortion in the adjusted sets yielding corrected second sets, the first and second sets are then used to generate first and second images, respectively.
    • 一种与闪烁照相机一起使用的方法,其检测在两个不同能量范围内具有能量的辐射事件,并且在两个范围内扭曲检测事件的空间坐标不同,为每个事件确定空间坐标集,每个坐标集使用第一 计算出的预定校正因子的集合以消除在第一能量范围内的事件中的失真,产生与第一能量范围内的事件相对应的第一校正坐标集,以及对应于第二能量范围内的事件的调整集合,调整后的集合使用 计算出的第二组预定校正因子以消除经校正的第二组的调整组中的失真,然后第一组和第二组分别用于产生第一和第二图像。
    • 28. 发明授权
    • Adjustable slit collimators method and system
    • 可调节准直器的方法和系统
    • US07723690B2
    • 2010-05-25
    • US11731873
    • 2007-03-30
    • Jorge UribeJames William HuggFloribertus P. M. Heukensfeldt Jansen
    • Jorge UribeJames William HuggFloribertus P. M. Heukensfeldt Jansen
    • G01T1/166G01T1/16
    • G21K1/025A61B6/032A61B6/037A61B6/06
    • Embodiments relate to a slit collimator assembly including a first set of panels spaced at least partially around a longitudinal axis of the collimator assembly and extending generally parallel to the longitudinal axis. The slit collimator assembly further includes a second set of panels spaced at least partially around longitudinal axis of the collimator assembly and extending generally parallel to the longitudinal axis. The first set of panels and the second set of panels are arranged to define one or more slit apertures. The slit collimator assembly is configured so that movement of at least one of the first set of panels or the second set of panels adjusts an aperture size of at least one of the one or more slit apertures. The slit collimator assembly is configured so that gamma rays can pass through the one or more slit apertures, but the remainder of the collimator assembly is substantially gamma ray absorbent. Embodiments also relate to imaging systems and methods of changing collimator performance.
    • 实施例涉及一种狭缝准直器组件,其包括至少部分围绕准直器组件的纵向轴线间隔开并且大致平行于纵向轴线延伸的第一组面板。 狭缝准直器组件还包括至少部分地围绕准直器组件的纵向轴线间隔开并且大致平行于纵向轴线延伸的第二组面板。 第一组面板和第二组面板被布置成限定一个或多个狭缝孔。 狭缝准直器组件被配置为使得第一组面板或第二组面板中的至少一个的移动调节一个或多个狭缝孔中的至少一个的孔径尺寸。 狭缝准直器组件被配置成使得γ射线可以穿过一个或多个狭缝孔,但准直器组件的其余部分基本上是γ射线吸收剂。 实施例还涉及成像系统和改变准直仪性能的方法。