公开(公告)号：WO2017084898A1

公开(公告)日：2017-05-26

申请号：PCT/EP2016/076763

申请日：2016-11-07

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： WIATROWSKA, Aneta ,  WIECZOREK, Herfried, Karl ,  RONDA, Cornelis, Reinder ,  KEUR, Wilhelmus, Cornelis ,  NACHMAN, Malgorzata

IPC: G01T1/203 ,  G01T1/204 ,  C09K11/77

CPC classification number: G01T1/203 ,  C09K11/02 ,  C09K11/7721 ,  G01T1/1606 ,  G21K4/00

Abstract: An improved scintillator nanocomposite comprising nanoparticles with scintillating properties and a diameter between 10 and 50 nanometer and a first matrix material comprises is obtained by introducing the nanoparticles into a dispersing medium to form a stable suspension. The dispersing medium is a precursor to the first matrix material, which is cured to form the first matrix material.

Abstract translation: 通过将纳米颗粒引入分散介质中以形成稳定的悬浮液，获得包含具有闪烁特性并且直径在10和50纳米之间的纳米颗粒以及第一基体材料的改进的闪烁体纳米复合材料。 分散介质是第一基体材料的前体，其被固化以形成第一基体材料。

公开(公告)号：WO2019185498A1

公开(公告)日：2019-10-03

申请号：PCT/EP2019/057352

申请日：2019-03-25

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： WIECZOREK, Herfried, Karl ,  GOEDICKE, Andreas

IPC: G06T11/00

Abstract: An imaging system (10) includes a first imaging device (12); a second imaging device (14) of a different modality than the first imaging device; a display device (24); and at least one electronic processor (20) programmed to: operate the first imaging device to acquire first imaging data of a subject; operate the second imaging device to acquire second imaging data of the subject; compare the first imaging data and the second imaging data to detect a possible fault in the second imaging device; and control the display device to present an alert indicating the possible fault in the second imaging device in response to the detection of the possible fault in the second imaging device.

公开(公告)号：WO2021063674A1

公开(公告)日：2021-04-08

申请号：PCT/EP2020/075798

申请日：2020-09-16

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： KOEHLER, Thomas ,  WIECZOREK, Herfried, Karl ,  VOGTMEIER, Gereon

IPC: A61B6/00 ,  G01N23/041 ,  G21K1/02

Abstract: The present invention relates to a detector (10) for a dark-field and/or phase-contrast interferometric imaging system. The detector comprises a plurality of pixels (50), a plurality of first detector arrays (20), a plurality of second detector arrays (30), and a processing unit (40). The plurality of pixels are arranged in a two-dimensional pattern. Each pixel comprises a first detector array and a second detector array. Each first detector array comprises a plurality of fingers (22). Each second detector array comprises a plurality of fingers (32). For each pixel the fingers of the first detector array are interleaved alternately with the fingers of the second detector array. For each pixel interaction with an incident X-ray photon can lead to charge generation in at least one finger of the first detector array of that pixel and can lead to charge generation in at least one finger of the second detector array of that pixel. For each pixel the first detector array is configured to detect a cumulative charge associated with the plurality of fingers of the first detector array and the second detector array is configured to detect a cumulative charge associated with the plurality of fingers of the second detector array. For each pixel the processing unit is configured to assign an X-ray interaction event to either the first detector array or the second detector array on the basis of the detector array that has the highest cumulative charge.

公开(公告)号：WO2020064373A1

公开(公告)日：2020-04-02

申请号：PCT/EP2019/074571

申请日：2019-09-13

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： WIECZOREK, Herfried, Karl

IPC: G01T1/20

Abstract: The invention relates to a scintillator array for a radiation imaging detector. A method for manufacturing the scintillator array, a radiation imaging detector, and a medical imaging system are also provided. The scintillator array has a radiation receiving face and an opposing scintillation light output face. The scintillator array includes a plurality of scintillator elements and a separator material that is disposed between the scintillator elements. The separator material consists of separator particles that have a predetermined size and with this the separator material provides an optical separation of the scintillator elements by providing a physical spacing between the scintillator elements, the width of which spacing is defined by the separator particle size.

公开(公告)号：WO2017067846A1

公开(公告)日：2017-04-27

申请号：PCT/EP2016/074647

申请日：2016-10-14

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： JACOBS, Johannes, Wilhelmus, Maria ,  JORRITSMA, Jorrit ,  STEINHAUSER, Heidrun ,  WIMMERS, Onno, Jan ,  ALVING, Peter, Lex ,  STEGEHUIS, Herman ,  WIECZOREK, Herfried, Karl

IPC: G01T1/20 ,  G01T1/16 ,  G01T1/161

CPC classification number: G01T1/2018 ,  G01T1/1611

Abstract: A radiation detector for combined detection of low-energy radiation quanta and high-energy radiation quanta, the radiation detector (8) having a multi-layered structure, comprising: a rear scintillator layer (5) configured to emit a burst of scintillation photons responsive to a high-energy radiation quantum being absorbed by the rear scintillator layer (5); a rear photosensor layer (6) attached to a back side of the rear scintillator layer (5), said rear photosensor layer (6) configured to detect scintillation photons generated in the rear scintillator layer (5); a front scintillator layer (3) arranged in front of the rear scintillator layer (5) opposite the rear photosensor layer (6), said front scintillator layer (3) configured to emit a burst of scintillation photons responsive to a low-energy radiation quantumbeing absorbed by the front scintillator layer (3); and a front photosensor layer (2) attached to a front side of the front scintillator layer (3) opposite the rear scintillator layer (5), said front photosensor layer (2) configured to detect scintillation photons generated in the front scintillator layer (3), wherein the high-energy radiation quantum is a gamma ray and the low-energy radiation quantum is an X-ray.

Abstract translation: 一种用于组合检测低能量辐射量子和高能量辐射量子的辐射检测器，所述辐射检测器（8）具有多层结构，包括：后闪烁体层（5），其被配置 响应于被所述后闪烁体层（5）吸收的高能辐射量子发射闪烁光子的突发; （5）的后侧上的后部光传感器层（6），所述后部光传感器层（6）被配置为检测在所述后闪烁体层（5）中产生的闪烁光子。 布置在后部闪烁体层（5）的与后部光电传感器层（6）相对的前面的前闪烁体层（3），所述前闪烁体层（3）配置为响应于低能量辐射量子发射 被前闪烁体层（3）吸收; 以及附接到前闪烁体层（3）的与后闪烁体层（5）相对的前侧的前光电传感器层（2），所述前光电传感器层（2）配置成检测在前闪烁体层（3）中产生的闪烁光子 ），其中高能量​​辐射量子是伽马射线，而低能量辐射量子是X射线。

公开(公告)号：WO2022078921A1

公开(公告)日：2022-04-21

申请号：PCT/EP2021/077971

申请日：2021-10-09

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： WIECZOREK, Herfried, Karl ,  STEGEHUIS, Herman ,  ALVING, Peter, Lex ,  JACOBS, Johannes, Wilhelmus, Maria

IPC: G01T1/161 ,  G01T1/20

Abstract: The present invention relates to a combined imaging detector (10, 20) for detection of gamma and x-ray quanta comprising an integrating x-ray detector (11) comprising a first scintillator layer (12) and a photodetector array (13) and a second structured scintillator layer (14), optionally as part of a second gamma detector having a second photodetector array. The combined imaging detector can be used for X-ray and SPECT detection and uses the principle of current flat x-ray detectors. Different resolutions are used: high spatial resolution for x-ray imaging and low spatial resolution for SPECT imaging.

公开(公告)号：WO2017212000A1

公开(公告)日：2017-12-14

申请号：PCT/EP2017/064048

申请日：2017-06-08

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： KOEHLER, Thomas ,  STEADMAN BOOKER, Roger ,  SIMON, Matthias ,  RUETTEN, Walter ,  WIECZOREK, Herfried, Karl

IPC: G21K1/02 ,  G01T1/20

Abstract: The invention relates to an analyzing grid for phase contrast imaging and/or dark-field imaging, a detector arrangement for phase contrast imaging and/or dark-field imaging comprising such analyzing grid, an X-ray imaging system comprising such detector arrangement, a method for manufacturing such analyzing grid, a computer program element for controlling such analyzing grid or detector arrangement for performing such method and a computer readable medium having stored such computer program element. The analyzing grid comprises a number of X-ray converting gratings. The X-ray converting gratings are configured to convert incident X-ray radiation into light or charge. The number of X-ray converting gratings comprises at least a first X-ray converting grating and a second X-ray converting grating. Further, the X-ray converting gratings each comprise an array of grating bars, wherein the grating bars within each X-ray converting grating are arranged mutually displaced from each other in a direction perpendicular to the incident X-ray radiation by a specific displacement pitch. Further, the grating bars of the first X-ray converting grating are arranged mutually displaced from the grating bars of the second X-ray converting grating in the direction perpendicular to the incident X-ray radiation by the displacement pitch divided by the number of X-ray converting gratings.

Abstract translation: 本发明涉及用于相位成像和/或暗场成像的分析网格，用于相位成像和/或暗场成像的检测器装置，包括这种分析网格，X射线 包括这种检测器装置的成像系统，用于制造这种分析网格的方法，用于控制用于执行这种方法的这种分析网格或检测器装置的计算机程序单元以及具有存储这种计算机程序单元的计算机可读介质。 分析网格包括多个X射线转换光栅。 X射线转换光栅被配置为将入射的X射线辐射转换为光或电荷。 X射线转换光栅的数量至少包括第一X射线转换光栅和第二X射线转换光栅。 此外，X射线转换光栅各自包括光栅条阵列，其中每个X射线转换光栅内的光栅条在垂直于入射X射线辐射的方向上彼此相互错开一个特定的位移节距 。 此外，第一X射线转换光栅的光栅条被布置成与第二X射线转换光栅的光栅条在与入射X射线辐射垂直的方向上相距位移节距除以X的数目 光栅转换光栅。

公开(公告)号：WO2020234110A1

公开(公告)日：2020-11-26

申请号：PCT/EP2020/063465

申请日：2020-05-14

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： WIECZOREK, Herfried, Karl ,  STEADMAN BOOKER, Roger ,  ALVING, Peter, Lex

IPC: G01T1/161 ,  G01T1/164

Abstract: The invention relates to a system for imaging an object in an x-ray imaging mode and in a gamma imaging mode. A radiation detector (1) of the system comprises a conversion unit (202) including a plurality of detector pixels (206 1,...,M ) and generating for each detection event a detection signal indicative of an energy of the event, and a counting unit (203) including for each detector pixel (206 1,...,M ) a plurality of comparators (209 i;1,...,N ) and associating each detection event to one of a plurality of predetermined energy bins based on the detection signals using the comparators (209 i;1,...,N ). In the x-ray imaging mode, the comparators(209 i;1,...,N ) of one pixel (206 1,...,M ), and, in the gamma imaging mode, the comparators (209 i;1,...,N ) of several pixels (206 1,...,M ) are available for the association so that more energy bins are available in the gamma imaging mode than in the x-ray imaging mode.

公开(公告)号：WO2018077840A1

公开(公告)日：2018-05-03

申请号：PCT/EP2017/077100

申请日：2017-10-24

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： WIECZOREK, Herfried, Karl ,  SOLF, Torsten ,  FRACH, Thomas

IPC: G01T1/164 ,  G01T1/20

CPC classification number: G01T1/1644 ,  G01T1/2018

Abstract: The invention relates to a gamma radiation detector that provides compensation for the parallax effect. The gamma radiation detector (100) includes a plurality of scintillator elements (101), a planar optical detector array (102), and a pinhole collimator (103) that includes a pinhole aperture (104). Each scintillator element has a gamma radiation receiving face (101') and an opposing scintillation light output face (101''). The gamma radiation receiving face of each scintillator element faces the pinhole aperture for generating scintillation light in response to gamma radiation received from the pinhole aperture. The scintillator elements are arranged in groups (105). Each group has a group axis (106) that is aligned with the pinhole aperture (104) and is perpendicular to the radiation receiving face of each scintillator in that group. The scintillation light output faces of each of the scintillator elements are in optical communication with the planar optical detector array (102).

Abstract translation: 本发明涉及一种为视差效应提供补偿的伽玛辐射检测器。 γ辐射检测器（100）包括多个闪烁体元件（101），平面光学检测器阵列（102）和包括针孔孔径（104）的针孔准直器（103）。 每个闪烁体元件具有伽马辐射接收面（101'）和相对的闪烁光输出面（101“）。 每个闪烁体元件的伽马辐射接收面面向针孔孔径，用于响应从针孔孔径接收的伽马辐射而产生闪烁光。 闪烁体元件以组（105）排列。 每个组具有与针孔孔径（104）对齐并且垂直于该组中的每个闪烁体的辐射接收面的组轴（106）。 每个闪烁体元件的闪烁光输出面与平面光学检测器阵列（102）光学通信。