公开(公告)号：US20080277588A1

公开(公告)日：2008-11-13

申请号：US11908296

申请日：2006-03-10

申请人： Gunter Zeitler ,  Gereon Vogtmeier

发明人： Gunter Zeitler ,  Gereon Vogtmeier

IPC分类号： G01T1/24

CPC分类号： G01T1/202

摘要： The invention relates to an X-ray detector with an array of pixels (10) that are composed of a scintillation layer (11), a coupling layer (12), and a sensitive layer (13). The coupling layer (12) comprises light guiding units (17) and shielding units (16), wherein the shielding units (16) are disposed above electronic processing circuits (15a, 15b) that are susceptible to disturbances by X-radiation. In an alternative embodiment, the coupling layer comprises a material like lead-glass that is transparent for light and absorbing for X-radiation. Preferably a wavelength-shifting material incorporated into the coupling layer (12) shifts the wavelength (λ1) of the photons generated in the scintillation layer (11) to values (λ2) at which the sensitive layer (13) has a higher sensitivity.

摘要翻译： 本发明涉及具有由闪烁层（11），耦合层（12）和敏感层（13）组成的像素阵列（10）的X射线检测器。 耦合层（12）包括导光单元（17）和屏蔽单元（16），其中屏蔽单元（16）设置在易受X射线干扰的电子处理电路（15a，15b）之上。 在替代实施例中，耦合层包括对于光透明并吸收X辐射的材料如铅玻璃。 掺入耦合层（12）中的波长迁移材料优选地将在闪烁层（11）中产生的光子的波长（λ<1> 1 N）移动到值（λ<2> >），敏感层（13）具有较高的灵敏度。

公开(公告)号：US20070025519A1

公开(公告)日：2007-02-01

申请号：US10571711

申请日：2004-09-03

申请人： Gereon Vogtmeier ,  Wolfgang Eckenbach ,  Ralf Dorscheid

发明人： Gereon Vogtmeier ,  Wolfgang Eckenbach ,  Ralf Dorscheid

IPC分类号： G21K1/02

CPC分类号： G21K1/02

摘要： The invention relates to an arrangement for collimating electromagnetic radiation, comprising a macrocollimator C which has at least two cutouts, and microcollimator structures which are positioned in the cutouts of the macrocollimator and have lamellae that absorb electromagnetic radiation, so that collimator channels are formed which in each case extend such that they are transparent in a transmission direction.

摘要翻译： 本发明涉及一种用于准直电磁辐射的装置，其包括具有至少两个切口的大型聚光器C和位于大型聚光器的切口中并具有吸收电磁辐射的薄片的微量聚焦器结构，从而形成准直器通道， 每个壳体在传送方向上是透明的。

公开(公告)号：US09424958B2

公开(公告)日：2016-08-23

申请号：US14117869

申请日：2012-05-30

申请人： Gereon Vogtmeier ,  Rainer Pietig ,  Christoph Loef ,  Martin Kimutai Duerr ,  Gerald James Carlson

发明人： Gereon Vogtmeier ,  Rainer Pietig ,  Christoph Loef ,  Martin Kimutai Duerr ,  Gerald James Carlson

IPC分类号： G21K1/08 ,  G21K1/10 ,  G21K1/02 ,  G01N23/04 ,  H01J35/08 ,  H01J35/30

CPC分类号： G21K1/08 ,  G01N23/04 ,  G21K1/025 ,  G21K1/10 ,  H01J35/08 ,  H01J35/30

摘要： For the generation of multiple-energy X-ray radiation, an X-ray tube (10) for generating multiple-energy X-ray radiation includes an anode (12) and a filter (14). At least a first (16) and a second focal spot position (18) are offset from each other in an offset direction (20) transverse to an X-ray radiation projection direction. The filter includes a first plurality (22) of first portions (24) with first filtering characteristics for X-ray radiation and a second plurality (26) of second portions (28) with second filtering characteristics for X-ray radiation. The filter is a directional filter adapted in a such a way that at least a first X-ray beam (30) emanating from the first focal spot position at least partly passes through the filter unit via the first portions, and a second X-ray beam (32) emanating from the second focal spot position passes obliquely through the first and the second portions when passing through the filter unit.

摘要翻译： 为了产生多能量X射线辐射，用于产生多能X射线辐射的X射线管（10）包括阳极（12）和过滤器（14）。 至少第一（16）和第二焦斑位置（18）在横向于X射线辐射投影方向的偏移方向（20）上彼此偏移。 滤波器包括具有用于X射线辐射的第一滤波特性的第一多个第一部分（22）和具有用于X射线辐射的第二滤波特性的第二多个第二部分（26）。 过滤器是一种定向过滤器，其适于使得从第一焦点位置发出的至少第一X射线束（30）至少部分地经由第一部分穿过过滤器单元，并且第二X射线 从第二焦点位置发出的光束（32）在通过过滤器单元时倾斜地穿过第一和第二部分。

公开(公告)号：US08891726B2

公开(公告)日：2014-11-18

申请号：US12864880

申请日：2009-02-02

申请人： Herfried Wieczorek ,  Gereon Vogtmeier

发明人： Herfried Wieczorek ,  Gereon Vogtmeier

IPC分类号： G06K9/00 ,  A61B6/00 ,  A61B6/03

CPC分类号： A61B6/4007 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4028 ,  A61B6/4233 ,  A61B6/4447 ,  A61B6/4488

摘要： When performing nuclear (e.g., SPECT or PET) and CT scans on a patient, an imaging system (10) includes three or more carbon nanotube x-ray sources (20) are circumferentially spaced along an arc of a rotatable gantry (16) that spans a distance larger than a maximum cross-sectional dimension of a section of a patient (14) to be imaged. The x-ray sources are sequentially pulsed to emit x-rays for scanning a section of a patient (14) including a volume of interest (VOI) (13). Only one source (20) is in an ON state at a time to create a duty cycle, which reduces cooling time for the respective sources as well as radiation dose to the subject. X-rays traversing the patient (14) are received at a flat panel x-ray detector (22) that has a width smaller than the maximum cross-sectional dimension, which further reduces the weight and size of the system (10).

摘要翻译： 当对患者进行核（例如SPECT或PET）和CT扫描时，成像系统（10）包括三个或更多个碳纳米管x射线源（20）沿着可旋转机架（16）的圆弧沿圆周间隔开， 跨越要被成像的患者（14）的一部分的最大横截面尺寸的距离。 x射线源被顺序地脉冲以发射X射线，用于扫描包括感兴趣体积（VOI）（13）的患者（14）的一部分。 一次只有一个源（20）处于ON状态以创建占空比，这降低了各个源的冷却时间以及对被摄体的辐射剂量。 穿过患者（14）的X射线被接收在具有小于最大横截面尺寸的宽度的平板X射线检测器（22）上，这进一步减小了系统（10）的重量和尺寸。

公开(公告)号：US08848863B2

公开(公告)日：2014-09-30

申请号：US13514061

申请日：2010-12-03

申请人： Sebastian Schusser ,  Gereon Vogtmeier

发明人： Sebastian Schusser ,  Gereon Vogtmeier

IPC分类号： A61B6/00 ,  G21K1/06

CPC分类号： G21K1/06 ,  A61B6/484 ,  G21K2201/06 ,  G21K2207/005

摘要： The present invention relates to X-rayimage acquisition technology in general. Employing phase-contrast imaging for X-rayimage acquisition may significantly enhance the visibility of structures in images acquired. However, phase-contrast information may only be obtainable in a small detector region with subsequent image acquisitions requiring individual phase stepping states to allow reconstruction of an X-ray image. Accordingly, a grating arrangement for phase-contrast imaging is provided which may allow on the fly phase stepping during a field of view scan. According to the present invention a grating arrangement (1) for phase-contrast imaging is provided, comprising a first grating element (8) and a second grating element (10). Each of the first grating element (8) and the second grating element (10) comprises a trench structure. The trench structure comprises at least one trench region (9) and at least one barrier region (3). The at least one trench region (9) and the at least one barrier region (3) are at least locally arranged in parallel. The first grating element (8) and the second grating element (10) are arranged such that the trench structure of the first grating element (8) and the trench structure of the second grating element (10) are non-parallel comprising an angle α.

摘要翻译： 本发明一般涉及X射线图像采集技术。 采用X射线图像采集的相位对比成像可以显着增强获得的图像中结构的可视性。 然而，相位对比度信息只能在小的检测器区域中获得，随后的图像采集需要各个相位步进状态以允许重建X射线图像。 因此，提供了用于相位对比成像的光栅装置，其可以在视野扫描期间在飞行阶段上进行步进。 根据本发明，提供了一种用于相位对比成像的光栅装置（1），包括第一光栅元件（8）和第二光栅元件（10）。 第一光栅元件（8）和第二光栅元件（10）中的每一个包括沟槽结构。 沟槽结构包括至少一个沟槽区（9）和至少一个势垒区（3）。 至少一个沟槽区域（9）和至少一个阻挡区域（3）至少局部地平行布置。 第一光栅元件（8）和第二光栅元件（10）被布置成使得第一光栅元件（8）的沟槽结构和第二光栅元件（10）的沟槽结构不平行，包括角度α 。

公开(公告)号：US20130256538A1

公开(公告)日：2013-10-03

申请号：US13991482

申请日：2011-12-12

申请人： Gereon Vogtmeier

发明人： Gereon Vogtmeier

IPC分类号： G01T1/20

CPC分类号： G01T1/2006 ,  G01T1/2008

摘要： The invention relates to a radiation detector (100) comprising a scintillator group with for example two scintillator elements (120a, 120b) for converting incident primary photons (X, X′) into secondary photons (λ, λ′) according to a characteristic emission spectrum. Moreover, the detector comprises at least two photodetectors (120a, 120b) for converting said secondary photons into electrical signals, wherein said photodetectors have different absorption spectra and can be read out separately. According to a preferred embodiment of the invention, the photodetectors are organic photodetectors (120a, 120b). The scintillator elements (120a, 120b) and the photodetectors are preferably arranged in a stack one behind the other. Due to the at least two photodetectors (120a, 120b), additional information about incident primary radiation (X, X′) can be collected.

摘要翻译： 本发明涉及一种辐射检测器（100），其包括闪烁体组，其具有例如两个闪烁体元件（120a，120b），用于根据特征发射将入射的初级光子（X，X'）转换成次级光子（λ，λ'） 光谱。 此外，检测器包括用于将所述次级光子转换为电信号的至少两个光电检测器（120a，120b），其中所述光电检测器具有不同的吸收光谱并且可以分别读出。 根据本发明的优选实施例，光电检测器是有机光电检测器（120a，120b）。 闪烁体元件（120a，120b）和光电检测器优选地以堆叠方式彼此排列。 由于至少两个光电检测器（120a，120b），可以收集关于入射初级辐射（X，X'）的附加信息。

公开(公告)号：US08515013B2

公开(公告)日：2013-08-20

申请号：US13055512

申请日：2009-08-06

申请人： Gereon Vogtmeier ,  Ralf Dorscheid

发明人： Gereon Vogtmeier ,  Ralf Dorscheid

IPC分类号： G21K1/10

CPC分类号： G21K1/025 ,  B22F3/114 ,  B22F7/002 ,  B22F2998/10 ,  B33Y70/00 ,  B33Y80/00 ,  Y02P10/295 ,  B22F3/1055

摘要： A grid (1) for selective transmission of electromagnetic radiation and a method for manufacturing such grid is proposed. Therein, the grid (1) comprises a structural element with walls (3) comprising a plurality of particles (19) of a radiation-absorbing material wherein the particles (19) are sintered together such that pores (21) are present between neighboring particles (19). The pores (21) are at least partially filled with a second solid material. The filling of the pores (21) can be done by inserting the second material in a liquid, preferably molten form into the pores. The second material can be itself radiation-absorbing as well and may help to both, increase the mechanical stability of the grid and to enhance the radiation-absorbing properties.

摘要翻译： 提出了用于电磁辐射选择性传输的电网（1）及其制造方法。 其中，网格（1）包括具有壁（3）的结构元件，所述壁（3）包括多个辐射吸收材料的颗粒（19），其中所述颗粒（19）被烧结在一起，使得孔（21）存在于相邻颗粒之间 （19）。 孔（21）至少部分地填充有第二固体材料。 孔（21）的填充可以通过将第二材料以液体，优选熔融形式插入孔中来完成。 第二种材料本身也可以是吸收辐射的，并且可以帮助两者，增加电网的机械稳定性并增强辐射吸收性能。

公开(公告)号：US20130044866A1

公开(公告)日：2013-02-21

申请号：US13696332

申请日：2011-04-28

申请人： Gereon Vogtmeier

发明人： Gereon Vogtmeier

IPC分类号： H05G1/10 ,  H02N2/18

CPC分类号： H05G1/10 ,  A61N5/1001 ,  A61N2005/1022 ,  H01J2235/0236 ,  H05G1/06

摘要： The present invention relates to the generation of X-ray-radiation (10), in particular to an X-ray generating device (2) adapted for interventional imaging. Brachytherapy requires for miniaturized X-ray generating devices (2) suitable for in vivo operation. In particular, an X-ray generating device (2) arranged within a patient's body requires dedicated cabling for providing both a high voltage and/or cooling to the X-ray source. Accordingly, an X-ray generating device (2) is provided that employs a mechanical energy source for local generation of a high voltage within the X-ray generating device (2) and further employing the mechanical energy source for cooling of the X-ray source.

摘要翻译： 本发明涉及X射线辐射（10）的产生，特别涉及适用于介入成像的X射线产生装置（2）。 近距离放射治疗需要适合于体内操作的小型化X射线产生装置（2）。 特别地，布置在患者体内的X射线产生装置（2）需要用于向X射线源提供高电压和/或冷却的专用布线。 因此，提供一种X射线产生装置（2），其采用在X射线产生装置（2）内局部产生高电压的机械能源，并且还使用用于冷却X射线的机械能源 资源。

公开(公告)号：US20110280367A1

公开(公告)日：2011-11-17

申请号：US13139308

申请日：2009-12-10

申请人： Christian Baeumer ,  Gereon Vogtmeier

发明人： Christian Baeumer ,  Gereon Vogtmeier

IPC分类号： A61B6/03

CPC分类号： A61B6/405 ,  A61B6/032 ,  A61B6/4007 ,  A61B6/4028 ,  A61B6/4035 ,  A61B6/4241 ,  A61B6/482

摘要： The present invention relates to an examination apparatus and a corresponding method to realize a Spectral x-ray imaging device through inverse-geometry CT. The proposed examination apparatus comprises: an X-ray source unit (14) comprising a plurality of X-ray sources (15) for emitting X-rays (24) at a plurality of locations, an X-ray detection unit (18) for detecting X-rays emitted from one or more of said X-ray sources (15) after penetration of an examination area (19) between said X-ray source unit (14) said X-ray detection unit (18) and for generating detection signals, a processing unit (36) for processing the generated detection signals, and—a control unit (26) for controlling said X-ray sources (15) to subsequently, alone or in groups emit X-rays at least two different energy spectra such that in the time interval, during which a particular X-ray source (15a) or said group of X-ray sources (15a,15d, 15g), is switched over to emit X-rays at a different energy spectrum, said particular X-ray source (15a) or said group of X-ray sources (15a, 15d, 15g) is switched off and one or more other X-ray sources (15b, 15c) or groups of X-ray sources (15b, 15e, 15h; 15c, 15f, 15i) are subsequently switched on to emit X-rays.

摘要翻译： 本发明涉及通过逆几何CT实现光谱X射线成像装置的检查装置和相应的方法。 所提出的检查装置包括：X射线源单元（14），包括用于在多个位置发射X射线（24）的多个X射线源（15）; X射线检测单元（18），用于 检测在所述X射线源单元（14）所述X射线检测单元（18）上的检查区域（19）穿透之后从一个或多个所述X射线源（15）发射的X射线，并且用于产生检测 信号，用于处理所生成的检测信号的处理单元（36），以及用于随后单独或分组地控制所述X射线源（15）的控制单元（26）发射X射线至少两个不同的能量谱 使得在特定X射线源（15a）或所述X射线源组（15a，15d，15g）的切换期间以不同的能谱发射X射线的时间间隔中，所述特定 X射线源（15a）或X射线源组（15a，15d，15g）被切断，一个或多个X射线源（15b，15c）或X射线组 （15b，15e，15h; 15c，15f，15i）随后被接通以发射X射线。

公开(公告)号：US20110168892A1

公开(公告)日：2011-07-14

申请号：US11813220

申请日：2005-12-19

申请人： Roger Steadman ,  Gereon Vogtmeier ,  Ingo Hehemann ,  Salah Eddine Ibnou Quossai ,  Erol Oezkan ,  Armin Kemna

发明人： Roger Steadman ,  Gereon Vogtmeier ,  Ingo Hehemann ,  Salah Eddine Ibnou Quossai ,  Erol Oezkan ,  Armin Kemna

IPC分类号： G01J1/42

CPC分类号： G01T1/2928 ,  H04N5/32 ,  H04N5/3745

摘要： The present invention provides a radiation sensor featuring a plurality of individual sensor elements, e.g. pixels, each of which having a radiation detection portion that is adapted to generate an electric current in response to impingement of electromagnetic radiation and a current amplifier for amplifying the photoelectric current generated by the radiation detection portion. Current amplification is therefore performed locally within each pixel of the radiation sensor itself. This local current amplification effectively allows to increase sensitivity and response of the radiation sensor and therefore enables implementation of the radiation sensor on the basis of CMOS technology. By means of the current amplification, the radiation sensor can be adapted for read-out by means of read-out devices and signal processing modules featuring distinct input specifications Further, a bias current required by the pixel implemented current amplifier is reproduced within each pixel and coupled to consecutive or adjacently arranged sensor elements or pixel, thereby providing a cascaded bias current regeneration and bias current distribution scheme.

摘要翻译： 本发明提供了一种辐射传感器，其特征在于多个单独的传感器元件，例如 像素，每个具有适于响应于电磁辐射的冲击而产生电流的辐射检测部分和用于放大由辐射检测部分产生的光电流的电流放大器。 因此，电流放大在辐射传感器本身的每个像素内本地进行。 这种局部电流放大有助于增加辐射传感器的灵敏度和响应，因此可以在CMOS技术的基础上实现辐射传感器。 通过电流放大，辐射传感器可以通过读出装置和具有不同输入规格的信号处理模块进行读出。此外，像素实现的电流放大器所需的偏置电流在每个像素内被再现， 耦合到连续或相邻布置的传感器元件或像素，从而提供级联的偏置电流再生和偏置电流分配方案。