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1. 发明授权

US09097808B2 Radiation detector and imaging system 有权
标题翻译：辐射检测器和成像系统
公开(公告)号：US09097808B2
公开(公告)日：2015-08-04
申请号：US14124713
申请日：2012-05-21
申请人： Harry Hedler , Timothy Hughes , Martin Spahn , Stefan Wirth
发明人： Harry Hedler , Timothy Hughes , Martin Spahn , Stefan Wirth
IPC分类号： G01T1/20 , G01T1/28
CPC分类号： G01T1/2006 , G01T1/20 , G01T1/28
摘要： The invention relates to a radiation detector (100; 101; 102; 103; 104; 105; 106), having a scintillator (120) for generating electromagnetic radiation (202) in response to the action of incident radiation (200). The scintillator (120) has two opposing end faces (121; 122) and a lateral wall (123) between the end faces (121; 122). The radiation detector has, in addition, a photocathode section (130) that is located on the lateral electrons wall (123) of the scintillator (120) and that generates electrons (204) in response to the action of electromagnetic radiation (202) that is generated by the scintillator (120), a microchannel plate (161; 162) comprising a plurality of channels (165), for multiplying the electrons (204) that have been generated by the photocathode section (130) and a detection system (171; 172) for detecting the electrons (204) that have been multiplied by means of the microchannel plate (161; 162). The invention also relates to an imaging system (110) comprising a radiation detector of this type (100; 101; 102; 103; 104; 105; 106).
摘要翻译：本发明涉及一种辐射检测器（100; 101; 102; 103; 104; 105; 106），其具有响应于入射辐射（200）的作用产生电磁辐射（202）的闪烁体（120）。闪烁体（120）在端面（121; 122）之间具有两个相对的端面（121; 122）和侧壁（123）。此外，辐射检测器还具有位于闪烁体（120）的横向电子壁（123）上并且响应于电磁辐射（202）的作用而产生电子（204）的光电阴极部分（130），所述光电阴极部分由所述闪烁体（120）产生的微通道板（161; 162）包括多个通道（165），用于将由所述光电阴极部分（130）产生的电子（204）与检测系统（171）相乘 ; 172），用于检测已经通过微通道板（161; 162）倍增的电子（204）。本发明还涉及一种包括这种类型的辐射探测器（100; 101; 102; 103; 104; 105; 106）的成像系统（110）。

2. 发明申请

US20140103219A1 RADIATION DETECTOR AND IMAGING SYSTEM 有权
标题翻译：辐射探测器和成像系统
公开(公告)号：US20140103219A1
公开(公告)日：2014-04-17
申请号：US14124713
申请日：2012-05-21
申请人： Harry Hedler , Timothy Hughes , Martin Spahn , Stefan Wirth
发明人： Harry Hedler , Timothy Hughes , Martin Spahn , Stefan Wirth
IPC分类号： G01T1/20
CPC分类号： G01T1/2006 , G01T1/20 , G01T1/28
摘要： The invention relates to a radiation detector (100; 101; 102; 103; 104; 105; 106), having a scintillator (120) for generating electromagnetic radiation (202) in response to the action of incident radiation (200). The scintillator (120) has two opposing end faces (121; 122) and a lateral wall (123) between the end faces (121; 122). The radiation detector has, in addition, a photocathode section (130) that is located on the lateral wall (123) of the scintillator (120) and that generates electrons (204) in response to the action of electromagnetic radiation (202) that is generated by the scintillator (120), a microchannel plate (161; 162) comprising a plurality of channels (165), for multiplying the electrons (204) that have been generated by the photocathode section (130) and a detection system (171; 172) for detecting the electrons (204) that have been multiplied by means of the microchannel plate (161; 162). The invention also relates to an imaging system (110) comprising a radiation detector of this type (100; 101; 102; 103; 104; 105; 106).
摘要翻译：本发明涉及一种辐射检测器（100; 101; 102; 103; 104; 105; 106），其具有响应于入射辐射（200）的作用产生电磁辐射（202）的闪烁体（120）。闪烁体（120）在端面（121; 122）之间具有两个相对的端面（121; 122）和侧壁（123）。另外，放射线检测器还具有位于闪烁体（120）的侧壁（123）上并且响应于电磁辐射（202）的作用产生电子（204）的光电阴极部分（130）由所述闪烁体（120）产生的微通道板（161; 162）包括多个通道（165），用于将由所述光电阴极部分（130）产生的电子（204）与检测系统（171; 172），用于检测已经通过微通道板（161; 162）倍增的电子（204）。本发明还涉及一种包括这种类型的辐射探测器（100; 101; 102; 103; 104; 105; 106）的成像系统（110）。

3. 发明授权

US09151850B2 Radiation detector and imaging system 有权
标题翻译：辐射检测器和成像系统
公开(公告)号：US09151850B2
公开(公告)日：2015-10-06
申请号：US14124712
申请日：2012-05-21
申请人： Harry Hedler , Timothy Hughes , Martin Spahn , Stefan Wirth
发明人： Harry Hedler , Timothy Hughes , Martin Spahn , Stefan Wirth
IPC分类号： G01T1/20 , G01T1/28
CPC分类号： G01T1/2006 , G01T1/20 , G01T1/28
摘要： The invention relates to a radiation detector (100; 101; 102; 103; 104; 105; 106), having a scintillator (120) for generating electromagnetic radiation (202) in response to the action of incident radiation (200). The scintillator (120) has two opposing end faces (121; 122) and a lateral wall (123) between the end faces (121; 122). The radiation detector has, in addition, a conversion system (160) located on the lateral wall (123) of the scintillator (120), said system comprising a plurality of channels (165). Each channel (165) has a photocathode section (130; 131; 132) for generating electrons (204) in response to the action of electromagnetic radiation (202) that is generated by the scintillator (120), said electrons being multipliable by impact processes in the channels (165). A detection system (170) for detecting electrons (204) that have been multiplied in the channels (165) of the conversion system (160) is also provided. The invention also relates to an imaging system (110) comprising a radiation detector of this type (100; 101; 102; 103; 104; 105; 106).
摘要翻译：本发明涉及一种辐射检测器（100; 101; 102; 103; 104; 105; 106），其具有响应入射辐射（200）的作用产生电磁辐射（202）的闪烁体（120）。闪烁体（120）在端面（121; 122）之间具有两个相对的端面（121; 122）和侧壁（123）。此外，辐射检测器还具有位于闪烁体（120）的侧壁（123）上的转换系统（160），所述系统包括多个通道（165）。每个通道（165）具有响应于由闪烁体（120）产生的电磁辐射（202）的作用产生电子（204）的光电阴极部分（130; 131; 132），所述电子可通过冲击过程在通道（165）中。还提供了用于检测已经在转换系统（160）的通道（165）中相乘的电子（204）的检测系统（170）。本发明还涉及一种包括这种类型的辐射探测器（100; 101; 102; 103; 104; 105; 106）的成像系统（110）。

4. 发明申请

US20140124676A1 RADIATION DETECTOR AND IMAGING SYSTEM 有权
标题翻译：辐射探测器和成像系统
公开(公告)号：US20140124676A1
公开(公告)日：2014-05-08
申请号：US14124712
申请日：2012-05-21
申请人： Harry Hedler , Timothy Hughes , Martin Spahn , Stefan Wirth
发明人： Harry Hedler , Timothy Hughes , Martin Spahn , Stefan Wirth
IPC分类号： G01T1/20
CPC分类号： G01T1/2006 , G01T1/20 , G01T1/28
摘要： The invention relates to a radiation detector (100; 101; 102; 103; 104; 105; 106), having a scintillator (120) for generating electromagnetic radiation (202) in response to the action of incident radiation (200). The scintillator (120) has two opposing end faces (121; 122) and a lateral wall (123) between the end faces (121; 122). The radiation detector has, in addition, a conversion system (160) located on the lateral wall (123) of the scintillator (120), said system comprising a plurality of channels (165). Each channel (165) has a photocathode section (130; 131; 132) for generating electrons (204) in response to the action of electromagnetic radiation (202) that is generated by the scintillator (120), said electrons being multipliable by impact processes in the channels (165). A detection system (170) for detecting electrons (204) that have been multiplied in the channels (165) of the conversion system (160) is also provided. The invention also relates to an imaging system (110) comprising a radiation detector of this type (100; 101; 102; 103; 104; 105; 106).
摘要翻译：本发明涉及一种辐射检测器（100; 101; 102; 103; 104; 105; 106），其具有响应于入射辐射（200）的作用产生电磁辐射（202）的闪烁体（120）。闪烁体（120）在端面（121; 122）之间具有两个相对的端面（121; 122）和侧壁（123）。此外，辐射检测器还具有位于闪烁体（120）的侧壁（123）上的转换系统（160），所述系统包括多个通道（165）。每个通道（165）具有响应于由闪烁体（120）产生的电磁辐射（202）的作用产生电子（204）的光电阴极部分（130; 131; 132），所述电子可通过冲击过程在通道（165）中。还提供了用于检测已经在转换系统（160）的通道（165）中相乘的电子（204）的检测系统（170）。本发明还涉及一种包括这种类型的辐射探测器（100; 101; 102; 103; 104; 105; 106）的成像系统（110）。

5. 发明授权

US09664803B2 Method for calibrating a counting digital X-ray detector, X-ray system for performing such a method and method for acquiring an X-ray image 有权
公开(公告)号：US09664803B2
公开(公告)日：2017-05-30
申请号：US15219022
申请日：2016-07-25
申请人： Silke Reitz , Martin Spahn
发明人： Silke Reitz , Martin Spahn
IPC分类号： G01T7/00 , G01T1/24
CPC分类号： G01T7/005 , G01T1/247
摘要： A method for calibrating a counting digital X-ray detector includes performing a threshold value scan in at least one defined X-ray spectrum for irradiating the X-ray detector, which includes a matrix composed of pixel elements, storing count rates of the pixel elements as a function of respective applied threshold values, and from results of a measurement of count rates of the pixel elements, determining or calculating individual correction threshold values for the individual pixel elements. The individual correction threshold values correct a threshold value that is to be applied to the pixel elements for the defined X-ray spectrum such that threshold value noise is reduced.

6. 发明申请

US20150090893A1 Counting Digital X-Ray Image Detector with Two Switchable Modes 有权
标题翻译：计数具有两种可切换模式的数字X射线图像检测器
公开(公告)号：US20150090893A1
公开(公告)日：2015-04-02
申请号：US14502860
申请日：2014-09-30
申请人： Martin Spahn
发明人： Martin Spahn
IPC分类号： G01T1/29
CPC分类号： G01T1/2928 , G01T1/17
摘要： The embodiments relate to a counting digital x-ray detector for recording x-ray images of an object irradiated by x-ray radiation with at least one detector module, which includes a flat direct converter for converting x-ray radiation into an electrical signal and a matrix with a plurality of counting pixel elements, wherein each counting pixel element includes a charge or signal input, a conversion facility for converting the electrical signal into a count signal, a digital counter for detecting and storing the count signal and a control and readout unit, and wherein the x-ray image detector is embodied such that each pixel element of the x-ray image detector is connected to the corresponding electrodes of the detector material of the direct converter via contacts and in this way is embodied switchably.
摘要翻译：实施例涉及一种计数数字X射线检测器，用于利用至少一个检测器模块记录由X射线辐射照射的物体的X射线图像，该检测器模块包括用于将x射线辐射转换成电信号的平坦直接转换器，具有多个计数像素元件的矩阵，其中每个计数像素元件包括电荷或信号输入，用于将电信号转换为计数信号的转换装置，用于检测和存储计数信号的数字计数器以及控制和读出单元，并且其中所述x射线图像检测器被实施为使得所述x射线图像检测器的每个像素元件经由触点连接到所述直接转换器的检测器材料的相应电极，并且以这种方式可切换地实现。

7. 发明申请

US20140175299A1 Counting Digital X-Ray Detector and Method for Recording an X-Ray Image 有权
标题翻译：计数数字X射线检测器和记录X射线图像的方法
公开(公告)号：US20140175299A1
公开(公告)日：2014-06-26
申请号：US14138041
申请日：2013-12-21
申请人： Martin Spahn
发明人： Martin Spahn
IPC分类号： G01T1/17
CPC分类号： G01T1/247 , G01T1/2928
摘要： A counting digital x-ray detector for recording x-ray images of an object irradiated by x-ray radiation includes a direct x-ray converter for converting x-ray radiation into an electric signal and a matrix with a plurality of counting pixel elements. At least one part of the counting pixel elements has a signal input and two circuits for converting the signal into a count signal. A first circuit of the two circuits is configured to convert the signal entering the respective pixel element directly into a count signal and to count the count signal. A second circuit of the two circuits is configured to convert the signal entering directly into the respective pixel element together with coincident occurring signals of at least one neighboring pixel element into a count signal and to count the count signal. The first circuit and/or the second circuit are able to be activated individually and both together.
摘要翻译：用于记录由x射线辐射照射的物体的X射线图像的计数数字X射线检测器包括用于将x射线辐射转换为电信号的直接x射线转换器和具有多个计数像素元件的矩阵。至少一部分计数像素元件具有信号输入和两个用于将该信号转换成计数信号的电路。两个电路的第一电路被配置为将进入相应像素元件的信号直接转换成计数信号并对计数信号进行计数。两个电路的第二电路被配置为将直接进入相应像素元件的信号与至少一个相邻像素元件的重合出现信号一起转换为计数信号并对计数信号进行计数。第一电路和/或第二电路能够单独激活并且两者一起激活。

8. 发明申请

US20110147600A1 COUNTING X-RAY DETECTOR 审中-公开
标题翻译：计数X射线探测器
公开(公告)号：US20110147600A1
公开(公告)日：2011-06-23
申请号：US12972729
申请日：2010-12-20
申请人： Martin Spahn
发明人： Martin Spahn
IPC分类号： G01T1/24
CPC分类号： G01T1/20 , G01T1/2935
摘要： For the purposes of particularly high image quality, provision is made for a counting X-ray detector for recording a digital X-ray image from X-ray radiation, with pixel readout units (14) arranged in a matrix for detecting and counting X-ray quanta (17) of the X-ray radiation, comprising a scintillator (10) for converting the X-ray radiation into photons (19) and a photocathode (11) for converting photons (19) into electrons (18), wherein each pixel readout unit (14), which has an anode (13), a discriminator (25), a counter (24) and a switching element (20), is assigned at least one gas electron multiplier (GEM) (12) for electron amplification.
摘要翻译：为了特别高的图像质量，提供了用于记录来自X射线辐射的数字X射线图像的计数X射线检测器，其中以阵列排列的像素读出单元（14）用于检测和计数X射线，包括用于将X射线辐射转换成光子（19）的闪烁体（10）和用于将光子（19）转换成电子（18）的光电阴极（11），其中每个X射线量子（17）具有阳极（13），鉴别器（25），计数器（24）和开关元件（20）的像素读出单元（14）被分配有用于电子的至少一个气体电子倍增器（GEM）（12）放大。

9. 发明申请

US20110038458A1 Method for enhanced visualization of objects in interventional angiographic examinations 有权
标题翻译：介入血管造影检查中对象增强可视化的方法
公开(公告)号：US20110038458A1
公开(公告)日：2011-02-17
申请号：US12854195
申请日：2010-08-11
申请人： Martin Spahn
发明人： Martin Spahn
IPC分类号： H05G1/64
CPC分类号： A61B6/12 , A61B6/4458 , A61B6/481 , A61B6/504 , A61B6/588 , G06T5/50 , G06T2207/10121 , G06T2207/20224 , G06T2207/30101
摘要： A method for enhanced visualization of objects in interventional angiographic examinations is provided. X-ray images are recorded during the system dose regulation phase with pure anatomy and during the filling phase with the vessels filled with contrast agent. A mask image is produced from both of the images. Native X-ray images are produced during a working or intervention phase with an object, for example a wire, a catheter or a “coil”, moved in the vessel. The images have a matrix-shaped array of pixels. The pure anatomy images are subtracted from the filling images and from the native images for generating a first subtraction image and a second subtraction image respectively. The first and the second subtraction image are processed for generating a vessel image and an object image respectively. The vessel image and the object image are processed for generating a roadmap image which is played back on a monitor.
摘要翻译：提供了一种用于增强介入性血管造影检查中物体可视化的方法。 X射线图像在系统剂量调节阶段用纯解剖学记录，在填充期间与装有造影剂的血管进行记录。从两个图像产生掩模图像。在工作或干预阶段期间产生原生X射线图像，其中物体例如在容器中移动的线，导管或“线圈”。图像具有矩阵状的像素阵列。从填充图像和原始图像中减去纯解剖图像，分别产生第一减影图像和第二减影图像。处理第一和第二减影图像以分别产生血管图像和物体图像。处理血管图像和物体图像以产生在监视器上重放的路线图像。

10. 发明申请

US20100329516A1 Interventional roadmap method with optimization of the mask phase 有权
标题翻译：介入路线图方法优化掩模阶段
公开(公告)号：US20100329516A1
公开(公告)日：2010-12-30
申请号：US12821344
申请日：2010-06-23
申请人： Rudolf Leiblein , Martin Spahn
发明人： Rudolf Leiblein , Martin Spahn
IPC分类号： G06T7/00
CPC分类号： G06T5/008 , A61B6/4458 , G06T5/002 , G06T5/50 , G06T2207/10121 , G06T2207/30048
摘要： An interventional roadmap method with optimization of the mask face is proposed. At least two empty images and at least two fill images are recorded in a mask phase A with a matrix-type array of pixels and stored. The empty and fill images are processed such that the gray values of each pixel of the x-ray images from mask phase A are arranged in ascending order. A mask image is computed from the processed empty and fill images such that the smallest gray values are averaged and from which the mask image will be formed. At least one current x-ray image is recorded and subtracted from the mask image to create roadmap images.
摘要翻译：提出了一种具有掩模面优化的介入路线图方法。至少两个空图像和至少两个填充图像被记录在具有矩阵型像素阵列并存储的掩模相位A中。处理空和填充图像，使得来自掩模相位A的X射线图像的每个像素的灰度值按升序排列。从处理的空和填充图像计算掩模图像，使得最小灰度值被平均，并且将从其形成掩模图像。记录至少一个当前的X射线图像并从掩模图像中减去以产生路线图图像。

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