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    DETECTOR
    2.
    发明申请
    DETECTOR 审中-公开
    探测器

    公开(公告)号：WO2014132232A2

    公开(公告)日：2014-09-04

    申请号：PCT/IB2014/059334

    申请日：2014-02-28

    Applicant: KONINKLIJKE PHILIPS N.V. ,  PHILIPS DEUTSCHLAND GMBH

    Inventor： VERBAKEL, Frank ,  ENGEL, Klaus Jürgen ,  NELLISSEN, Antonius Johannes Maria ,  WIECZOREK, Herfried Karl ,  VAN GRUNSVEN, Eric Cornelis Egbertus ,  BLEVIS, Ira Micah ,  STEADMAN BOOKER, Roger

    IPC: G01T1/24

    CPC classification number: G01T1/244 ,  G01N23/02 ,  G01T1/24

    Abstract: The invention relates to a detector (6) for detecting radiation, especially x-ray radiation used in a computed tomography system. The detector comprises a direct conversion material(9) for converting radiation into electrons and holes, which are used for generating an electrical detection signal. The direct conversion material is illuminated with illumination light being broadband visible and/or broadband infrared light for reducing, in particular, eliminating, a polarization of the direct conversion material, which may occur when being traversed by the radiation to be detected and which may reduce the detection performance. By reducing the polarization of the direct conversion material the detection performance can be improved.

    Abstract translation: 本发明涉及一种用于检测辐射的检测器（6），特别是用于计算机断层摄影系统中的X射线辐射。 检测器包括用于将辐射转换成电子和空穴的直接转换材料（9），用于产生电检测信号。 直接转换材料被照明为具有宽带可见光和/或宽带红外光的照明光，用于减少特别是消除直接转换材料的极化，当被被检测的辐射穿过时可能发生极化，并且可以减少 检测性能。 通过降低直接转换材料的极化，可以提高检测性能。

    PHOTON COUNTING X-RAY DETECTOR
    4.
    发明申请
    PHOTON COUNTING X-RAY DETECTOR 审中-公开
    光电计数X射线探测器

    公开(公告)号：WO2014087290A1

    公开(公告)日：2014-06-12

    申请号：PCT/IB2013/060267

    申请日：2013-11-20

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： NELLISSEN, Antonius Johannes Maria ,  VERBAKEL, Frank ,  KLOOTWIJK, Johan Hendrik ,  WIECZOREK, Herfried Karl

    IPC: G01T1/24

    CPC classification number: G01T1/241 ,  G01T1/18 ,  G01T1/24 ,  G01T1/247 ,  G01T1/366

    Abstract: The present invention relates to a photon counting X-ray detector and detection method that effectively suppress polarization even under high flux conditions. The proposed detector comprises a photon counting semiconductor element (10) for generating electron-hole pairs in response to incident X-ray photons,a cathode electrode (11a, 11b; 21a, 21b; 31a, 31b, 31c, 31ac, 31d; 41a, 41b; 51a, 51b) arranged on a first side (10a) of said semiconductor element (10) facing incited X-ray radiation, said cathode electrode comprising two interdigitated cathode elements (11a, 11b; 21a, 21b; 31a, 31b, 31c, 31ac, 31d; 41a, 41b; 1a, 51b), a pixelated anode electrode (12) arranged on a second side (10b) of said semiconductor element (10) opposite said first side (10a), a power source (13) for applying a bias voltage between said cathode electrode and said anode electrode and for temporarily applying an injection voltage between said cathode elements (11a, 11b; 21a, 21b; 31a, 31b, 31c, 31ac, 31d; 41a, 41b; 51a, 51b), and a readout unit (14) for reading out electrical signals from said pixelated anode electrode (12).

    Abstract translation: 本发明涉及即使在高通量条件下也能有效地抑制极化的光子计数X射线检测器和检测方法。 所提出的检测器包括：用于响应于入射的X射线光子产生电子 - 空穴对的光子计数半导体元件（10），阴极电极（11a，11b; 21a，21b; 31a，31b，31c，31ac，31d; 41a ，41b; 51a，51b），所述阴极包括两个交叉指示的阴极元件（11a，11b; 21a，21b; 31a，31b， 31c，31ac，31d; 41a，41b; 1a，51b），布置在所述半导体元件（10）的与所述第一侧（10a）相对的第二侧（10b）上的像素化​​阳极电极（12） ），用于在所述阴极电极和所述阳极电极之间施加偏置电压，并且在所述阴极元件（11a，11b; 21a，21b; 31a，31b，31c，31ac，31d; 41a，41b; 51a， 51b）和用于从所述像素化阳极电极（12）读出电信号的读出单元（14）。

    DIRECT CONVERSION RADIATION DETECTOR
    5.
    发明申请
    DIRECT CONVERSION RADIATION DETECTOR 审中-公开
    直接转换辐射探测器

    公开(公告)号：WO2017005532A1

    公开(公告)日：2017-01-12

    申请号：PCT/EP2016/064930

    申请日：2016-06-28

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： VERBAKEL, Frank ,  RONDA, Cornelis Reinder ,  WIECZOREK, Herfried Karl

    IPC: G01T1/24

    CPC classification number: G01T1/241 ,  G01T1/24

    Abstract: The present invention relates to a direct conversion radiation detector for wherein the direct conversion material comprises a garnet with a composition of Z 3 (A1 x Ga y )O 12 :Ce, wherein Z is Lu, Gd, Y, Tb or combinations thereof and wherein y is equal to or greater than x; and preferably Z comprises Gd. Suitable garnets directly convert radiation, such as x-rays or gamma-rays, into electronic signals. Preferably photoluminescence of the garnet is low or absent. The detector is particularly suitable for use in x-ray imaging devices, such as computed tomography. In some embodiments photoluminescence of garnets might be used to construct a hybrid direct-indirect conversion detector, which may be particularly suitable for use with Time-of-Flight PET.

    Abstract translation: 本发明涉及一种直接转换辐射检测器，其中直接转化材料包含具有Z3（Al x Ga y）O 12：Ce组成的石榴石，其中Z是Lu，Gd，Y，Tb或其组合，其中y等于 或大于x; 并且优选Z包括Gd。 合适的石榴石将辐射（例如x射线或γ射线）直接转换为电子信号。 石榴石的光致发光优选低或不存在。 检测器特别适用于X射线成像设备，如计算机断层摄影。 在一些实施方案中，石榴石的光致发光可以用于构建混合直接 - 间接转换检测器，其可以特别适用于飞行时间PET。

    SCINTILLATION ELEMENT FOR AN X-RAY DETECTOR
    7.
    发明申请
    SCINTILLATION ELEMENT FOR AN X-RAY DETECTOR 审中-公开

    公开(公告)号：WO2022069376A1

    公开(公告)日：2022-04-07

    申请号：PCT/EP2021/076421

    申请日：2021-09-26

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： WIECZOREK, Herfried Karl ,  SIMON, Matthias ,  DE LAAT, Antonius Wilhelmus Maria

    IPC: G01T1/20

    Abstract: The invention concerns a scintillation element for an X-ray detector, an X-ray detector comprising such scintillation element, and a method for manufacturing a scintillation element for an X-ray detector. The scintillation element comprises a scintillation material for X-ray radiation, and a photodiode, wherein the scintillation material is arranged on the photodiode. The scintillation material comprises an upper end configured to receive X-ray radiation, a lower end being in contact with the photodiode, and at least one optical channel extending within the scintillation material, wherein the optical channel is configured for transferring electromagnetic radiation, which was generated in the scintillation material when having received the X-ray radiation, along the optical channel towards the photodiode. The at least one optical channel extends in a direction from the upper end of the scintillation material towards the lower end of the scintillation material and towards the photodiode, and wherein the at least one optical channel is surrounded by the scintillation material.

    COMBINED X-RAY AND NUCLEAR IMAGING
    8.
    发明申请
    COMBINED X-RAY AND NUCLEAR IMAGING 审中-公开
    组合X射线和核成像

    公开(公告)号：WO2017153198A1

    公开(公告)日：2017-09-14

    申请号：PCT/EP2017/054540

    申请日：2017-02-28

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： WIECZOREK, Herfried Karl ,  GOEDICKE, Andreas ,  ALVING, Peter Lex

    IPC: A61B6/00 ,  A61B6/03 ,  G01T1/16 ,  G21K1/02 ,  G06T11/00

    Abstract: The invention relates to a combined imaging detector (110) for the detection of x-ray and gamma quanta. The combined imaging detector (110) is adapted for simultaneous detection of gamma and x-ray quanta. The combined imaging detector (110) includes an x-ray anti-scatter grid (111), a layer of x-ray scintillator elements (112), a first photodetector array (113), a layer of gamma scintillator elements (114), and a second photodetector array (115) that are arranged in a stacked configuration along a radiation-receiving direction (116). The x-ray anti-scatter grid (111) comprises a plurality of septa (117 A, B, C ) that define a plurality of apertures (118) which are configured to collimate both x-ray quanta and gamma quanta received from the radiation receiving direction (116) such that received gamma quanta are collimated only by the x-ray anti-scatter grid (111). The use of the x-ray anti-scatter grid as a collimator for received gamma quanta results in a significantly lighter combined imaging detector.

    Abstract translation: 本发明涉及用于检测X射线和伽玛量子的组合成像检测器（110）。 组合成像检测器（110）适于同时检测伽玛和X射线量子。 组合成像检测器110包括X射线防散射栅格111，一层X射线闪烁体元件112，第一光电探测器阵列113，一层伽玛闪烁体元件114， 和第二光电检测器阵列（115），所述第二光电检测器阵列（115）沿辐射接收方向（116）以堆叠配置布置。 所述X射线防散射栅格（111）包括多个隔膜（117A，B，C），所述隔膜限定了多个孔径（118），所述多个孔隙被配置为准直两个x射线量子 以及从所述辐射接收方向（116）接收的伽马量子，使得所接收的伽玛量子仅由所述X射线反散射栅格（111）准直。 使用X射线反散射网格作为接收到的伽马量子的准直器可以使组合成像检测器明显更轻。

    GAMMA RADIATION DETECTION DEVICE
    9.
    发明申请
    GAMMA RADIATION DETECTION DEVICE 审中-公开
    伽马辐射检测装置

    公开(公告)号：WO2014180658A1

    公开(公告)日：2014-11-13

    申请号：PCT/EP2014/058213

    申请日：2014-04-23

    Applicant: KONINKLIJKE PHILIPS N.V. ,  PHILIPS GMBH

    Inventor： WIECZOREK, Herfried Karl ,  RONDA, Cornelis Reinder ,  BOEREKAMP, Jacobus Gerardus

    IPC: G01T1/20

    CPC classification number: G01T1/2018

    Abstract: The present invention relates to a gamma radiation detection device (1). The gamma radiation detection device (1) comprises a scintillator element (2) and an optical detector (3) in optical communication with the scintillator element (2). A plurality of particles or voids (5) are dispersed in the scintillator element (2) which scatter the scintillation light(7), reducing the trapping of scintillation light (7) by multiple reflections.

    Abstract translation: 本发明涉及一种伽马射线检测装置（1）。 γ辐射检测装置（1）包括与闪烁体元件（2）光学连通的闪烁体元件（2）和光学检测器（3）。 多个颗粒或空隙（5）分散在散射闪烁光（7）的闪烁体元件（2）中，从而减少多次反射对闪烁光（7）的捕获。

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