PLANAR AND VOLUMETRIC DOSIMETER WITH SCINTILLATING MATERIAL FOR RADIOTHERAPY TREATMENT USING TOMOGRAPHIC RECONSTRUCTION
    2.
    发明申请
    PLANAR AND VOLUMETRIC DOSIMETER WITH SCINTILLATING MATERIAL FOR RADIOTHERAPY TREATMENT USING TOMOGRAPHIC RECONSTRUCTION 审中-公开
    用放射治疗方法治疗放射治疗药物的平面和体积计量器

    公开(公告)号:US20140217295A1

    公开(公告)日:2014-08-07

    申请号:US14009139

    申请日:2012-03-29

    IPC分类号: G01T1/105

    摘要: According to one aspect, a planar and volumetric dosimeter for use with a radiotherapy machine having a radiation source. The dosimeter includes a scintillating assembly including a plurality of scintillating optical fibers and configured to generate a light output in response to incident dose distribution thereon from the radiation source, and a photo-detector operable to convert optical energy emitted by the scintillating assembly to electrical signals for determining actual two-dimensional (2D) or three-dimensional (3D) dose distribution incident on the scintillating assembly using a tomographic reconstruction algorithm.

    摘要翻译: 根据一个方面,一种与具有辐射源的放射治疗机一起使用的平面和体积剂量计。 所述剂量计包括闪烁组件,其包括多个闪烁光纤并且被配置为响应于来自所述辐射源的入射剂量分布而产生光输出,以及光检测器,其可操作以将所述闪烁组件发射的光能量转换为电信号 用于使用断层摄影重建算法确定入射在闪烁组件上的实际二维(2D)或三维(3D)剂量分布。

    Scintillating fiber dosimeter array
    3.
    发明授权
    Scintillating fiber dosimeter array 有权
    闪烁纤维剂量计阵列

    公开(公告)号:US08183534B2

    公开(公告)日:2012-05-22

    申请号:US12276013

    申请日:2008-11-21

    IPC分类号: G01T1/02 G01T1/24 G01T1/26

    摘要: A radiation dosimetry apparatus and method use a scintillating optical fiber array for detecting dose levels. The scintillating optical fiber detectors generate optical energy in response to a predetermined type of radiation, and are coupled to collection optical fibers that transmit the optical energy to a photo-detector for conversion to an electrical signal. The detectors may be embedded in one or more modular, water-equivalent phantom slabs. A repeatable connector couples the collection fibers to the photo-detector, maintaining the fiber ends in a predetermined spatial relationship. The detector fibers may be distributed as desired in a three-dimensional detection space, and may be oriented with their longitudinal axes at different orientations relative to a transmission axis of an incident radiation beam. A calibration method uses two measurements in two spectral windows, one with irradiation of the scintillator at a known dose and one with only irradiation of the collection fiber.

    摘要翻译: 放射剂量测定装置和方法使用闪烁光纤阵列来检测剂量水平。 闪烁光纤检测器响应于预定类型的辐射产生光能,并且耦合到收集光纤,其将光能传输到光电检测器以转换为电信号。 检测器可以嵌入在一个或多个模块化的水当量幻影板中。 可重复的连接器将收集光纤耦合到光检测器,将光纤端部保持在预定的空间关系。 检测器光纤可以根据需要在三维检测空间中分布,并且可以相对于入射辐射束的透射轴线以其纵轴线以不同的取向定向。 校准方法在两个光谱窗口中使用两个测量,一个以已知剂量的闪烁体照射,另一个仅照射收集纤维。

    METHODS AND APPARATUS FOR OPTICALLY ENCODED POSITION MULTIPLE-POINT SCINTILLATION DETECTOR USING A SINGLE COLLECTING LIGHT GUIDE
    8.
    发明申请
    METHODS AND APPARATUS FOR OPTICALLY ENCODED POSITION MULTIPLE-POINT SCINTILLATION DETECTOR USING A SINGLE COLLECTING LIGHT GUIDE 有权
    使用单个收集指南的光学编码位置多点识别检测器的方法和装置

    公开(公告)号:US20140263991A1

    公开(公告)日:2014-09-18

    申请号:US14122013

    申请日:2012-05-24

    IPC分类号: G01T1/10 G01T1/20

    摘要: Various embodiments are described herein for a radiation dosimetry apparatus and associated methods for measuring radiation dose. In some embodiments, the apparatus includes multiple scintillating elements for detecting amounts of radiation dose at multiple points within a detection region. Each of the scintillating elements generates light in response to radiation interacting within their volume. A light guide combines the light generated by all of the scintillating elements as well as radiation-induced contaminated optical energy and transmits the combined light to a spectral analysis setup. Multi or hyper-spectral calibration technique allows calculating the dose or dose rate at the positions of the different scintillating elements. The calibration technique isolates the light produced by a given scintillating element from the other scintillating elements as well as any other source of radiation-induced contaminating light.

    摘要翻译: 本文描述了辐射剂量测定装置和用于测量辐射剂量的相关方法的各种实施方案。 在一些实施例中,该装置包括用于检测检测区域内的多个点处的辐射剂量的多个闪烁元件。 闪烁元件中的每一个响应于在其体积内相互作用的辐射而产生光。 光导组合由所有闪烁元件产生的光以及辐射诱发的污染的光能,并将组合的光传输到光谱分析设置。 多重或超光谱校准技术允许计算不同闪烁元件位置的剂量或剂量率。 校准技术将由给定的闪烁元件产生的光与其他闪烁元件以及任何其他辐射源的污染光源隔离。