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    • 41. 发明授权
    • Optimizing intensity maps for plural orientations using segmented radiation fields
    • 使用分段辐射场优化多个取向的强度图
    • US09144691B2
    • 2015-09-29
    • US13656752
    • 2012-10-22
    • Moshe Ein-Gal
    • Moshe Ein-Gal
    • A61N5/10G21F3/00
    • A61N5/1042A61N5/1081A61N2005/1095G21F3/00
    • A modulator for use in a radiation system with directional radiation beams respectively collimated into radiation fields, including a plurality of displaceable radiation attenuating elements arranged in at least one row, the radiation attenuating elements being configured to attenuate portions of a radiation beam inside the radiation field according the position of the radiation attenuating elements, and wherein each radiation attenuating element is respectively attached to a substantially radiolucent member, and a driver operable to store motion profiles and to respectively drive the radiation attenuating elements in directions generally perpendicular to the radiation beam via the substantially radiolucent members, wherein the respective motions of the radiation attenuating elements are according to corresponding motion profiles, and wherein a motion profile relates position and/or velocity of the radiation attenuating elements to time and/or irradiation level.
    • 一种用于具有分别准直到辐射场中的定向辐射束的辐射系统的调制器,包括布置在至少一排中的多个可位移的辐射衰减元件,所述辐射衰减元件被配置为衰减辐射场内部的辐射束的部分 根据辐射衰减元件的位置,并且其中每个辐射衰减元件分别连接到基本上是射线可透过的构件,以及可操作地存储运动曲线并且分别驱动辐射衰减元件的辐射衰减元件在大致垂直于辐射束的方向上经由 其中辐射衰减元件的相应运动根据相应的运动曲线,并且其中运动曲线将辐射衰减元件的位置和/或速度与时间和/或照射水平相关联。
    • 42. 发明授权
    • Cone beam CT scanning
    • 锥束CT扫描
    • US08964934B2
    • 2015-02-24
    • US13870196
    • 2013-04-25
    • Moshe Ein-Gal
    • Moshe Ein-Gal
    • G01V5/00G01N23/04
    • G01N23/046A61B6/027A61B6/032A61B6/4085G01N2223/3301
    • A CBCT system is described that includes a radiation source for emitting a cone beam of radiation in a beam direction towards an object, a detector for detecting the cone beam of radiation, and a positioner for moving the radiation source and the object according to a scanning trajectory. The system is operated according to a sampling pattern that includes intersections of the scanning trajectory and a reconstruction trajectory, wherein motion of the radiation source is substantially confined to a spherical shell. The positioner moves the radiation source at a speed higher than a highest speed of the object by a factor of at least 10. The largest angular discrepancy between any vector in a range of the scanning trajectory and the nearest sample of the scanning trajectory does not exceed 10°, preferably 6° and more preferably 3°.
    • 描述了一种CBCT系统,其包括用于沿朝向物体的波束方向发射锥形辐射束的辐射源,用于检测锥形辐射束的检测器,以及用于根据扫描来移动辐射源和物体的定位器 弹道。 该系统根据包括扫描轨迹和重建轨迹的交点的采样模式进行操作,其中辐射源的运动基本上限于球壳。 定位器以高于物体最高速度的速度将辐射源移动至少10倍。扫描轨迹范围内的任何矢量与扫描轨迹的最近样本之间的最大角度差不超过 10°,优选6°,更优选3°。
    • 43. 发明申请
    • CONE BEAM CT SCANNING
    • CONE光束CT扫描
    • US20140321605A1
    • 2014-10-30
    • US13870196
    • 2013-04-25
    • Moshe Ein-Gal
    • Moshe Ein-Gal
    • G01N23/04
    • G01N23/046A61B6/027A61B6/032A61B6/4085G01N2223/3301
    • A CBCT system is described that includes a radiation source for emitting a cone beam of radiation in a beam direction towards an object, a detector for detecting the cone beam of radiation, and a positioner for moving the radiation source and the object according to a scanning trajectory. The system is operated according to a sampling pattern that includes intersections of the scanning trajectory and a reconstruction trajectory, wherein motion of the radiation source is substantially confined to a spherical shell. The positioner moves the radiation source at a speed higher than a highest speed of the object by a factor of at least 10. The largest angular discrepancy between any vector in a range of the scanning trajectory and the nearest sample of the scanning trajectory does not exceed 10°, preferably 6° and more preferably 3°.
    • 描述了一种CBCT系统,其包括用于沿朝向物体的波束方向发射锥形辐射束的辐射源,用于检测锥形辐射束的检测器,以及用于根据扫描来移动辐射源和物体的定位器 弹道。 该系统根据包括扫描轨迹和重建轨迹的交点的采样模式进行操作,其中辐射源的运动基本上限于球壳。 定位器以高于物体最高速度的速度将辐射源移动至少10倍。扫描轨迹范围内的任何矢量与扫描轨迹的最近样本之间的最大角度差不超过 10°,优选6°,更优选3°。
    • 46. 发明授权
    • Variable spatial beam modulator
    • 可变空间光束调制器
    • US08178855B2
    • 2012-05-15
    • US12711267
    • 2010-02-24
    • Moshe Ein-Gal
    • Moshe Ein-Gal
    • G21K5/10
    • G21K1/10A61N5/1042A61N2005/1096G21F1/023
    • For use with an irradiation system including a radiation source operable to produce a radiation beam towards a target, a beam modulator including a flexible, deformable container at least partially filled with a radiation attenuating fluid, a non-deformable first contacting surface in contact with a first portion of the container, the first contacting surface pivotable about a first axis, and a positioner operable to rotate the first contacting surface about the first axis, wherein as the first contacting surface rotates about the first axis, the first contacting surface deforms the container.
    • 为了与包括可操作以朝向目标产生辐射束的辐射源的照射系统一起使用,光束调制器包括至少部分地填充有辐射衰减流体的柔性可变形容器,与第一接触表面接触的不可变形的第一接触表面 容器的第一部分,可围绕第一轴线枢转的第一接触表面和可操作以围绕第一轴线旋转第一接触表面的定位器,其中当第一接触表面围绕第一轴线旋转时,第一接触表面使容器 。
    • 50. 发明申请
    • IMAGING WITH A PLURALITY OF SOURCES TO A COMMON DETECTOR
    • 向普通检测者呈现多样化的来源
    • US20090184261A1
    • 2009-07-23
    • US12017068
    • 2008-01-21
    • Moshe Ein-Gal
    • Moshe Ein-Gal
    • G21G5/00
    • A61B6/022A61B6/4007A61B6/482G01N2223/414G01N2223/419
    • An image scanning system including a plurality of spatially-distributed radiation beam sources, each source operative to emit a radiation beam characterized by a distinguishing parameter unique to each radiation beam source, and a common detector arranged with respect to the radiation beam sources such that the radiation beam sources emit their radiation beams onto the common detector which is operable to receive and distinguish the radiation beams on the basis of their respective distinguishing parameters so as to acquire partial projections sets of an object through which the radiation beams pass, wherein a union of the partial projections sets forms a projection set sufficient for reconstruction of an image of the object.
    • 一种包括多个空间分布的辐射束源的图像扫描系统,每个源可操作地发射由每个辐射束源唯一的区别参数表征的辐射束,以及相对于辐射束源布置的公共检测器, 辐射光束源将其辐射束发射到公共检测器上,该检测器可操作以基于它们各自的区别参数来接收和区分辐射束,以便获取辐射束通过的物体的部分投影集,其中, 部分投影组形成足以重建对象的图像的投影集。