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1. 发明申请

US20180027641A1 X-Ray Source Controller 审中-公开
公开(公告)号：US20180027641A1
公开(公告)日：2018-01-25
申请号：US15586880
申请日：2017-05-04
申请人： Moxtek, Inc.
发明人： Chris Carter , Jerry Smith
IPC分类号： H05G1/46 , H05G1/10
CPC分类号： H05G1/46 , H05G1/02 , H05G1/10
摘要： An x-ray source can include a power supply and an x-ray tube. The power supply can include digital-to-analog converters (DACs) electrically-coupled between a digital controller and an x-ray tube control circuit. A user of the x-ray source can provide a digital input to the digital controller for operation of the x-ray source. Advantages of this power supply can include easy operation of the x-ray source, minimize problems in x-ray source operation due to variation between manufactured x-ray tubes, and reduced electronic noise. There can be a small distance between the DACs and the x-ray tube control circuit. The power supply electronic components can be part of a single electronic circuit rigidly-mounted together. The digital controller, the first DAC, the second DAC, and the x-ray tube control circuit can be rigidly-mounted within a housing.

2. 发明申请

US20160183907A1 X-RAY DETECTION 有权
标题翻译： X射线检测
公开(公告)号：US20160183907A1
公开(公告)日：2016-06-30
申请号：US14911745
申请日：2014-08-27
申请人： KONINKLIJKE PHILIPS N.V.
发明人： ROLF KARL OTTO BEHLING
IPC分类号： A61B6/00 , H01J35/18 , H01J35/10
CPC分类号： A61B6/585 , A61B6/0407 , A61B6/4035 , A61B6/4266 , A61B6/4441 , A61B6/4464 , A61B6/54 , A61B6/586 , H01J35/00 , H01J35/10 , H01J35/18 , H05G1/46
摘要： Rotating anode X-ray tubes degrade over time because of the action of the electron beam altering the surface of the focal spot area of a rotating anode. This causes a degradation in a resulting object image, when the source is used in an imaging application. An X-ray tube housing assembly is discussed which allows the correction of such effects. In particular, an additional beam of the X-radiation, which is not used for imaging, may be used to correct such effects.
摘要翻译：旋转阳极X射线管由于电子束的作用改变旋转阳极的焦点区域的表面而随时间而降解。当在成像应用中使用源时，这导致所得到的对象图像的劣化。讨论了允许校正这种效果的X射线管壳体组件。特别地，可以使用不用于成像的X射线的附加束来校正这种影响。

3. 发明申请

US20150297165A1 X-RAY CT APPARATUS AND TOMOGRAPHY METHOD 有权
标题翻译： X射线CT装置和TOMOGRAPHY方法
公开(公告)号：US20150297165A1
公开(公告)日：2015-10-22
申请号：US14440766
申请日：2013-11-28
申请人： HITACHI MEDICAL CORPORATION
发明人： Kana Tanaka , Koichi Hirokawa , Yukio Kumagai , Ryo Yoshida
IPC分类号： A61B6/00 , G06T7/00 , A61B6/03
CPC分类号： A61B6/5258 , A61B6/032 , A61B6/035 , A61B6/405 , A61B6/4435 , A61B6/488 , A61B6/5205 , A61B6/5294 , A61B6/54 , A61B6/542 , A61B6/544 , A61B6/545 , G06T7/0012 , G06T2207/10081 , G06T2207/10144 , G06T2207/30004 , H05G1/34 , H05G1/46
摘要： In order to provide an X-ray CT apparatus with little image quality degradation even though a tube current value of the X-ray tube is suppressed, an X-ray CT apparatus of the present invention includes: a system controller that calculates a tube current value of an X-ray tube based on a successive approximation process condition selected from a plurality of successive approximation process conditions and input a scanning condition and/or a reconstruction condition and that performs scanning based on the calculated tube current value of the X-ray tube; and an image reconstruction device that reconstructs a tomographic image of an object, based on the selected successive approximation process condition and the reconstruction condition, from an amount of transmitted X-rays detected by an X-ray detector after being emitted from an X-ray source to the object based on the calculated tube current value of the X-ray tube and being transmitted through the object.
摘要翻译：为了提供即使X射线管的管电流值被抑制，图像质量下降小的X射线CT装置，本发明的X射线CT装置包括：计算管电流的系统控制器基于从多个逐次逼近处理条件中选择的逐次逼近处理条件的X射线管的值，并输入扫描条件和/或重建条件，并且基于所计算的X射线管管电流值进行扫描管; 以及图像重建装置，其根据所选择的逐次逼近处理条件和重建条件，从X射线检测器检测出的X射线检测器的X射线发射量之后，重构物体的断层图像基于X射线管的计算管电流值并通过物体传输到物体。

4. 发明申请

US20150092910A1 Computed Tomography Scanning Apparatus, Gantry Rotation Control Device and Method Thereof 审中-公开
标题翻译：计算机断层扫描仪，龙门式旋转控制装置及其方法
公开(公告)号：US20150092910A1
公开(公告)日：2015-04-02
申请号：US14487684
申请日：2014-09-16
申请人： GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC
发明人： Zhanfeng Xing
IPC分类号： H05G1/46 , H05G1/38 , G01P3/64 , G01N23/04
CPC分类号： G01P3/64 , A61B6/032 , A61B6/54 , A61B6/542 , A61B6/545 , G01N23/046 , G01P3/44 , H05G1/38 , H05G1/46
摘要： A gantry rotation control device for a computed tomography scanning apparatus The device includes a radiation dose determination unit for determining radiation doses of the X-rays that will be emitted to each site of the target object to be scanned, a minimum velocity determination unit for determining a minimum rotation velocity of the gantry according to a maximum radiation dose in the determined radiation doses, a maximum velocity determination unit for determining a maximum rotation velocity of the gantry according to the determined minimum rotation velocity, a rotation velocity determination unit for determining a rotation velocity of the gantry at any time during scanning of the target object according to the determined minimum rotation velocity and maximum rotation velocity, and a gantry rotation control unit for controlling the gantry to scan the target object while rotating according to the determined rotation velocity when the target object is to be scanned.
摘要翻译：一种用于计算机断层摄影扫描装置的台架旋转控制装置该装置包括：放射剂量确定单元，用于确定将被发射到待扫描的目标物体的每个位置的X射线的辐射剂量;最小速度确定单元，用于确定根据确定的放射剂量中的最大辐射剂量的台架的最小旋转速度，用于根据确定的最小旋转速度确定机架的最大旋转速度的最大速度确定单元，用于确定旋转的旋转速度确定单元根据确定的最小旋转速度和最大旋转速度在目标物体的扫描期间的任何时间，台架的速度，以及台架旋转控制单元，用于在旋转时根据所确定的旋转速度控制台架在旋转期间扫描目标物体目标对象被扫描。

5. 发明申请

US20150085984A1 SCANNING METHOD AND DEVICE WITH REDUCED SCANNING DOSAGE 有权
标题翻译：扫描方法和具有减少扫描剂量的装置
公开(公告)号：US20150085984A1
公开(公告)日：2015-03-26
申请号：US14142951
申请日：2013-12-30
申请人： Shenyang Neusoft Medical Systems Co., Ltd.
发明人： Xinliang LI , Ling Pang , Shanshan Lou
IPC分类号： A61B6/00 , A61B6/03
CPC分类号： A61B6/583 , A61B6/032 , A61B6/405 , A61B6/482 , A61B6/486 , A61B6/503 , A61B6/5258 , A61B6/541 , A61B6/542 , A61B6/545 , H05G1/32 , H05G1/38 , H05G1/40 , H05G1/46
摘要： A scanning method and device are provided. The method includes: determining values for a first scanning dosage and a second scanning dosage used in a scanning process based on a trigger condition which varies regularly and attenuation fluctuations of an object to be scanned, wherein the first scanning dosage is higher than the second scanning dosage, and at least one of the first scanning dosage and the second scanning dosage has an inconstant value; and scanning a target position with the determined values. In the present disclosure, a scanning dosage may be reduced and different image noises may be kept consistent.
摘要翻译：提供扫描方法和装置。该方法包括：基于规则变化的触发条件和待扫描对象的衰减波动来确定扫描过程中使用的第一扫描剂量和第二扫描剂量的值，其中第一扫描剂量高于第二次扫描剂量，并且第一扫描剂量和第二扫描剂量中的至少一个具有不定值; 并用确定的值扫描目标位置。在本公开中，扫描剂量可以减少，并且不同的图像噪声可以保持一致。

6. 发明申请

US20140270055A1 X-RAY CT APPARATUS 有权
标题翻译： X射线CT装置
公开(公告)号：US20140270055A1
公开(公告)日：2014-09-18
申请号：US14288753
申请日：2014-05-28
申请人： Kabushiki Kaisha Toshiba , Toshiba Medical Systems Corporation
发明人： Daizo OIKAWA , Fumio Ishiyama
IPC分类号： H05G1/30 , A61B6/03
CPC分类号： H01J35/025 , A61B6/032 , A61B6/405 , A61B6/4241 , A61B6/54 , A61B6/542 , A61B6/58 , G05F1/10 , G05F1/565 , H01J37/241 , H01J37/248 , H01J37/3023 , H01J2237/2487 , H05G1/32 , H05G1/46
摘要： X-ray CT apparatus is provided in which the photon energy distribution of X-rays to be radiated is flattened. X-ray CT apparatus includes an X-ray tube, a detector, a data acquisition system, a tube voltage generator, and a grid controller. The X-ray tube radiates X-rays onto a subject. The detector includes multiple detection elements for detecting photons forming the X-rays. The data acquisition system counts the number of the detected photons to acquire projection data based on the counted photons. The tube voltage generator applies the tube voltage to the X-ray tube while changing the tube voltage of the X-ray tube in a predetermined cycle. A tube current controller decreases the tube current upon an increase in the tube voltage, and increases the tube current upon a decrease in the tube voltage. Thus, the photon energy distribution of the X-rays radiated from the X-ray tube is flattened.
摘要翻译：提供X射线CT装置，其中要辐射的X射线的光子能量分布变平。 X射线CT装置包括X射线管，检测器，数据采集系统，管电压发生器和电网控制器。 X射线管将X射线照射到被摄体上。检测器包括用于检测形成X射线的光子的多个检测元件。数据采集系统根据计数的光子计算检测到的光子数以获得投影数据。管电压发生器将管电压施加到X射线管，同时以预定的周期改变X射线管的管电压。管电流控制器在管电压增加时降低管电流，并且在管电压降低时增加管电流。因此，从X射线管辐射的X射线的光子能量分布变平。

7. 发明申请

US20140159581A1 METHOD AND DEVICE FOR GENERATING OPTICAL RADIATION BY MEANS OF ELECTRICALLY OPERATED PULSED DISCHARGES 有权
标题翻译：用于通过电动式脉冲放电产生光学辐射的方法和装置
公开(公告)号：US20140159581A1
公开(公告)日：2014-06-12
申请号：US14236936
申请日：2012-06-12
申请人： Ralf Pruemmer , Ralf Conrads , Klaus Bergmann , Felix Kuepper , Jeroen Jonkers
发明人： Ralf Pruemmer , Ralf Conrads , Klaus Bergmann , Felix Kuepper , Jeroen Jonkers
IPC分类号： H05G1/46 , H05G2/00
CPC分类号： H05G1/46 , H05G2/003 , H05G2/008
摘要： The present invention relates to a method and device for generating optical radiation (18), in particular EUV radiation or soft x-rays, by means of electrically operated discharges. A plasma (15) is ignited in a gaseous medium between at least two electrodes (1, 2), wherein said gaseous medium is produced at least partly from a liquid material (6), which is applied to one or several surface(s) moving in the discharge space and is at least partially evaporated by one or several pulsed energy beam(s) (9). At least two consecutive pulses (16) are applied within a time interval of each electrical discharge onto said surface(s). The delay between and/or the pulse energy of said consecutive pulses is controlled to stabilize the position of an emission center of the plasma (15).
摘要翻译：本发明涉及通过电动放电产生光辐射（18），特别是EUV辐射或软X射线的方法和装置。等离子体（15）在至少两个电极（1,2）之间的气体介质中点燃，其中所述气体介质至少部分地由液体材料（6）产生，所述液体材料（6）施加到一个或多个表面，在放电空间中移动并且被一个或多个脉冲能量束（9）至少部分蒸发。在每个放电的时间间隔内，在所述表面上施加至少两个连续的脉冲（16）。所述连续脉冲之间的延迟和/或脉冲能量被控制以稳定等离子体（15）的发射中心的位置。

8. 发明申请

US20120163546A1 BOOSTING/BLANKING THE FILAMENT CURRENT OF AN X-RAY TUBE 有权
标题翻译：提升/清除X射线管的电流
公开(公告)号：US20120163546A1
公开(公告)日：2012-06-28
申请号：US13384870
申请日：2010-08-26
申请人： Timothy Striker , Thomas Lehmann
发明人： Timothy Striker , Thomas Lehmann
IPC分类号： H05G1/30
CPC分类号： H05G1/34 , H05G1/46 , H05G1/56 , H05G1/58
摘要： For boosting/blanking the filament current of a cathode of an X-ray tube the temporal variation of the tube current of the X-ray tube is measured and stored in a first memory. Then an iterative boosting/blanking is performed wherein the boosting/blanking current is applied to the filament for a short time interval (Δt), based on the stored temporal variation of the tube cur rent the tube current after the short time interval (ΔT) is determined, and the tube current is stored in a second memory. Based on the stored temporal variation of the tube current it is determined if the tube current (IE) is less than a target value (IE2) thereof, and if so, the boosting/blanking current is applied to the filament for an additional time interval (Δt), else it is determined that the tube current (IE) is equal to the target value (IE2). Therefore, the tube current (IE) after each time interval (Δt) is known (may be determined from the tube current data stored in the second memory)such that the iterative boosting/blanking may be interrupted anytime.
摘要翻译：为了对X射线管的阴极的灯丝电流进行升压/消隐，测量X射线管的管电流的时间变化并将其存储在第一存储器中。然后进行迭代升压/消隐，其中基于存储的短时间间隔后管管电流的时间变化，将升压/消隐电流施加到短纤维长度（＆Dgr; t）＆Dgr; T），并且管电流存储在第二存储器中。基于管电流的存储时间变化，确定管电流（IE）是否小于其目标值（IE2），如果是，则将升压/消隐电流施加到灯丝上一段额外的时间间隔（＆Dgr; t），否则确定管电流（IE）等于目标值（IE2）。因此，每个时间间隔（＆Dgr; t）之后的管电流（IE）是已知的（可以从存储在第二存储器中的管电流数据确定），使得迭代升压/消隐可以随时中断。

9. 发明申请

US20120039443A1 METHOD AND DEVICE FOR LOAD DEPENDENT RESIZING OF A FOCAL SPOT OF AN X-RAY GENERATING DEVICE 有权
标题翻译：用于X射线发生装置的焦点点的负载相关的方法和装置
公开(公告)号：US20120039443A1
公开(公告)日：2012-02-16
申请号：US13265297
申请日：2010-04-19
申请人： Rolf Karl Otto Behling
发明人： Rolf Karl Otto Behling
IPC分类号： H05G1/46
CPC分类号： H05G1/46 , H05G1/36 , H05G1/54
摘要： In an X-ray generating device (2) a temperature of a focal spot (21) may be determined. Furthermore a load condition is determined, which may also take into account a planned operation procedure of the X-ray generating device (2). The focal spot of the X-ray generating device is then automatically resizable based at least in part on the load condition.
摘要翻译：在X射线产生装置（2）中，可以确定焦点（21）的温度。此外，确定了负载条件，这也可以考虑X射线产生装置（2）的计划的操作过程。至少部分地基于负载条件，X射线产生装置的焦点可以自动调节大小。

10. 发明申请

US20110062853A1 CATHODE 有权
标题翻译：阴极
公开(公告)号：US20110062853A1
公开(公告)日：2011-03-17
申请号：US12884410
申请日：2010-09-17
申请人： Thomas Ferger , Sven Fritzler , Dieter Matuszok
发明人： Thomas Ferger , Sven Fritzler , Dieter Matuszok
IPC分类号： H01J19/08
CPC分类号： H05G1/34 , H01J35/06 , H05G1/46
摘要： A cathode has a cathode head in which is arranged at least one emitter that emits electrons upon application of a heating voltage. At least one series resistor is connected in the voltage feed to at least one emitter. The use of such a cathode in an x-ray tube enables x-ray exposures with a high quality.
摘要翻译：阴极具有阴极头，其中布置有至少一个在施加加热电压时发射电子的发射体。至少一个串联电阻器连接到至少一个发射器的电压馈送中。在x射线管中使用这样的阴极可以实现高质量的X射线曝光。

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