公开(公告)号：US07816853B2

公开(公告)日：2010-10-19

申请号：US12188353

申请日：2008-08-08

申请人： Joerg Freudenberger ,  Sven Fritzler ,  Manfred Fuchs ,  Detlef Mattern ,  Peter Roehrer ,  Peter Schardt

发明人： Joerg Freudenberger ,  Sven Fritzler ,  Manfred Fuchs ,  Detlef Mattern ,  Peter Roehrer ,  Peter Schardt

IPC分类号： H01J1/62

CPC分类号： H01J35/065 ,  H01J1/34

摘要： A cathode has an emission layer that thermionically emits electrons upon exposure with a laser beam. The material of the emission layer has a product of density (ρ), measured in kg m 3 , heat capacity (Cp), measured in J kg ⁢ ⁢ K and heat conductivity (λ), measured in W mK that is, at room temperature, maximally 500,000 J 2 m 4 ⁢ K 2 ⁢ s . Such a cathode has an improved thermionic emission of electrons.

摘要翻译： 阴极具有在用激光束曝光时热离子发射电子的发射层。 发射层的材料具有密度（＆rgr。）的乘积，以kg m 3测量，热容量（Cp），以J kg·K K测量的热导率（λ），以W mK测量，即在 室温最大为500,000J 2 m 4 K 2 s。 这种阴极具有改进的电子的热离子发射。

公开(公告)号：US07315610B2

公开(公告)日：2008-01-01

申请号：US11737292

申请日：2007-04-19

申请人： Jörg Freudenberger ,  Peter Schardt

发明人： Jörg Freudenberger ,  Peter Schardt

IPC分类号： G21K5/10

CPC分类号： A61B6/502 ,  A61B6/4021 ,  G21K1/04

摘要： In a method for operating an x-ray device, an x-ray beam is generated at a focal spot of a rotary anode that is rotatable around a rotation axis, and the x-ray beam is gated with a slit-shaped diaphragm to produce a fan-shaped x-ray beam, that is moved through an examination region in the manner of a scan. To improve the image resolution, the fan-shaped x-ray beam can be moved over the examination region essentially in the direction of the rotational axis of the rotary anode by tilting the x-ray tube on the focal spot, with the x-ray tube being tilted on the focal spot so that the fan-shaped x-ray beam is always gated from the region of the overall emitted x-ray beam having the highest image resolution or the highest image definition in the movement through the examination region.

摘要翻译： 在用于操作x射线装置的方法中，在可围绕旋转轴线旋转的旋转阳极的焦点处产生x射线束，并且X射线束被切割形状的隔膜浇注以产生 以扫描的方式移动通过检查区域的扇形X射线束。 为了提高图像分辨率，通过使x射线管在焦点上倾斜，可以使基本上在旋转阳极的旋转轴线的方向上的扇形X射线束移动到检查区域上 管子在焦斑上倾斜，使得扇形X射线束总是从具有最高图像分辨率的全面发射的x射线束的区域或通过检查区域的移动中的最高图像定义选通。

公开(公告)号：US20070273308A1

公开(公告)日：2007-11-29

申请号：US11638905

申请日：2006-12-14

申请人： Sven Fritzler ,  Peter Schardt ,  Stefan Setzer

发明人： Sven Fritzler ,  Peter Schardt ,  Stefan Setzer

IPC分类号： H05H9/00

CPC分类号： G21G1/10

摘要： A method for producing radioactive isotopes for positron emission tomography is provided. The method includes generating radioactive isotopes by the acceleration of a projectile in a linear accelerator that is operative to accelerate at least two different projectiles.

摘要翻译： 提供了一种用于生产正电子发射断层扫描的放射性同位素的方法。 该方法包括通过在线性加速器中加速射弹以产生放射性同位素，其可用于加速至少两种不同的射弹。

公开(公告)号：US20070183585A1

公开(公告)日：2007-08-09

申请号：US11737292

申请日：2007-04-19

申请人： Jorg Freudenberger ,  Peter Schardt

发明人： Jorg Freudenberger ,  Peter Schardt

IPC分类号： G21K5/10

CPC分类号： A61B6/502 ,  A61B6/4021 ,  G21K1/04

摘要： In a method for operating an x-ray device, an x-ray beam is generated at a focal spot of a rotary anode that is rotatable around a rotation axis, and the x-ray beam is gated with a slit-shaped diaphragm to produce a fan-shaped x-ray beam, that is moved through an examination region in the manner of a scan. To improve the image resolution, the fan-shaped x-ray beam can be moved over the examination region essentially in the direction of the rotational axis of the rotary anode by tilting the x-ray tube on the focal spot, with the x-ray tube being tilted on the focal spot so that the fan-shaped x-ray beam is always gated from the region of the overall emitted x-ray beam having the highest image resolution or the highest image definition in the movement through the examination region.

摘要翻译： 在用于操作x射线装置的方法中，在可围绕旋转轴线旋转的旋转阳极的焦点处产生x射线束，并且X射线束被切割形状的隔膜浇注以产生 以扫描的方式移动通过检查区域的扇形X射线束。 为了提高图像分辨率，通过使x射线管在焦点上倾斜，可以使基本上在旋转阳极的旋转轴线的方向上的扇形X射线束移动到检查区域上 管子在焦斑上倾斜，使得扇形X射线束总是从具有最高图像分辨率的全面发射的x射线束的区域或通过检查区域的移动中的最高图像定义选通。

公开(公告)号：US06709156B1

公开(公告)日：2004-03-23

申请号：US09664338

申请日：2000-09-18

申请人： Erich Hell ,  Detlef Mattern ,  Peter Schardt

发明人： Erich Hell ,  Detlef Mattern ,  Peter Schardt

IPC分类号： H01J3510

CPC分类号： A61B6/035 ,  A61B6/4488 ,  H05G1/02 ,  H05H1/02

摘要： A cooling device for an X-ray source arranged at a gantry rotatable around a rotational axis has a ring-like heat exchanger that is arranged at the gantry and is thermally conductively connected to the X-ray source. The cooling device is useable in a computed tomography apparatus having the X-ray source.

摘要翻译： 布置在可绕旋转轴线旋转的机架的X射线源的冷却装置具有布置在台架处并与X射线源导热连接的环状热交换器。 冷却装置可用于具有X射线源的计算机断层摄影装置中。

公开(公告)号：US06141400A

公开(公告)日：2000-10-31

申请号：US246452

申请日：1999-02-09

申请人： Peter Schardt ,  Erich Hell ,  Detlef Mattern

发明人： Peter Schardt ,  Erich Hell ,  Detlef Mattern

IPC分类号： H01J35/06 ,  H01J35/00 ,  H01J35/08 ,  H01J35/12 ,  H05G2/00

CPC分类号： H05G2/00 ,  H01J35/00 ,  H01J35/08 ,  H01J2235/086

摘要： A fluorescent X-ray emitting source has an unfocused, omni-directionally radiating electron source and an anode target for the generation of X-ray bremsstrahlung, which releases mono-energetic X-rays in a fluorescent target. The electron source and the fluorescent target are arranged in a vacuum housing with an X-ray exit window. The housing has an interior wall surface forming the anode target and the fluorescent target is aligned with the X-ray exit window.

摘要翻译： 荧光X射线发射源具有未聚焦的全向辐射电子源和用于产生X射线bre致辐射的阳极靶，其在荧光靶中释放单能X射线。 电子源和荧光目标设置在具有X射线出射窗的真空壳体中。 壳体具有形成阳极靶的内壁表面，并且荧光目标与X射线出射窗口对准。

公开(公告)号：US6115453A

公开(公告)日：2000-09-05

申请号：US137481

申请日：1998-08-20

申请人： Erich Hell ,  Detlef Mattern ,  Peter Schardt

发明人： Erich Hell ,  Detlef Mattern ,  Peter Schardt

IPC分类号： H01J1/16 ,  H01J35/06

CPC分类号： H01J1/16 ,  H01J35/06 ,  Y10S430/143

摘要： A direct-heated flat emitter for generating a homogenous electron beam, particularly for x-ray tubes, has two terminal lugs for the heating current supply formed at the edge of the perimeter of the emission surface and the emission surface is subdivided into interconnects by slits. The slits have a width no less than 10 .mu.m and no greater than 1% of the length of a diagonal of the smallest rectangle which can circumscribe the emission surface.

摘要翻译： 用于产生均匀电子束的直接加热扁平发射体，特别是用于x射线管，具有两个用于在发射表面的周边边缘处形成的加热电流源的端子凸耳，并且发射表面通过狭缝细分为互连 。 狭缝具有不小于10μm的宽度，并且不大于可以包围发射表面的最小矩形的对角线的长度的1％的宽度。

公开(公告)号：US4617003A

公开(公告)日：1986-10-14

申请号：US735838

申请日：1985-05-20

申请人： Helmut Bober ,  Theo Buthe ,  Karl Coenen ,  Norbert Fartmann ,  Klaus Herbertz ,  Heinz Koch ,  Horst Kretschmer ,  Clemens Nienhaus ,  Peter Schardt ,  Jurgen Schibrowski ,  Willi Schmandt

发明人： Helmut Bober ,  Theo Buthe ,  Karl Coenen ,  Norbert Fartmann ,  Klaus Herbertz ,  Heinz Koch ,  Horst Kretschmer ,  Clemens Nienhaus ,  Peter Schardt ,  Jurgen Schibrowski ,  Willi Schmandt

IPC分类号： F16D1/116 ,  F16D7/02

CPC分类号： F16D1/116 ,  F16D7/025

摘要： A clutch assembly capable of providing several predetermined settings, wherein the components which support springs applying torque are not subjected to bending loads. The settings are achieved in that a supporting ring supporting a pressure plate against a clutch housing is provided with radially outwardly extending cams which are offset relative to the center thereof with two rows of apertures being provided in a cylindrical face of the clutch housing which are axially offset and offset relative to the angle of rotation and which correspond to the cams of the supporting ring and within which the cams are engaged.

摘要翻译： 一种能够提供若干预定设置的离合器组件，其中支撑施加扭矩的弹簧的部件不经受弯曲载荷。 设置的实现是，支撑抵靠离合器壳体的压板的支撑环设置有径向向外延伸的凸轮，其相对于其中心偏移，其中两排孔设置在离合器壳体的圆柱面中，其轴向 相对于旋转角度的偏移和偏移，并且其对应于支撑环的凸轮并且凸轮在其内接合。

公开(公告)号：US20110075802A1

公开(公告)日：2011-03-31

申请号：US12568703

申请日：2009-09-29

申请人： Moritz Beckmann ,  Jens Fuerst ,  Peter Schardt ,  Frank Sprenger ,  Otto Zhou

发明人： Moritz Beckmann ,  Jens Fuerst ,  Peter Schardt ,  Frank Sprenger ,  Otto Zhou

IPC分类号： G01N23/083 ,  H01J35/30 ,  H01J35/06

CPC分类号： H01J35/065 ,  H01J35/08 ,  H01J35/14 ,  H01J35/30 ,  H01J2235/062 ,  H01J2235/068 ,  H01J2235/086

摘要： An x-ray imaging system has an x-ray source having an electron field emission source that emits an x-ray beam that strikes an elongated, stationary anode in an evacuated housing. A magnetic deflection system steers the electron beam between the electron field emission source and the anode, so that the electron beam can strike the anode at different locations, thereby causing x-rays to be emitted from those different locations, by controlling the degree of magnetic deflection. A radiation detector detects the x-rays after attenuation by an examination subject, and generates signals dependent on the detected radiation that represent an image of the subject.

摘要翻译： x射线成像系统具有x射线源，该X射线源具有电子场发射源，该电子场发射源发射在抽真空壳体中撞击细长固定阳极的x射线束。 磁偏转系统将电子束引导到电子场发射源和阳极之间，使得电子束可以在不同的位置撞击阳极，从而通过控制磁场的程度使得从这些不同位置发射X射线 偏转。 放射线检测器通过检查对象检测衰减后的X射线，并且产生取决于检测到的辐射的信号，该信号表示被检体的图像。

公开(公告)号：US07846419B2

公开(公告)日：2010-12-07

申请号：US11638905

申请日：2006-12-14

申请人： Sven Fritzler ,  Peter Schardt ,  Stefan Setzer

发明人： Sven Fritzler ,  Peter Schardt ,  Stefan Setzer

IPC分类号： A61K51/00 ,  A61M36/14

CPC分类号： G21G1/10

摘要： A method for producing radioactive isotopes for positron emission tomography is provided. The method includes generating radioactive isotopes by the acceleration of a projectile in a linear accelerator that is operative to accelerate at least two different projectiles.

摘要翻译： 提供了一种用于生产正电子发射断层扫描的放射性同位素的方法。 该方法包括通过在线性加速器中加速射弹以产生放射性同位素，其可用于加速至少两种不同的射弹。