公开(公告)号：US10201322B2

公开(公告)日：2019-02-12

申请号：US14487684

申请日：2014-09-16

Applicant: GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC

Inventor： Zhanfeng Xing

IPC: A61B6/03 ,  H05G1/38 ,  H05G1/46 ,  A61B6/00 ,  G01N23/046 ,  G01P3/64 ,  G01P3/44

Abstract: A gantry rotation control device for a computed tomography scanning apparatus. The gantry rotation control 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.

公开(公告)号：US20180085081A1

公开(公告)日：2018-03-29

申请号：US15273937

申请日：2016-09-23

Applicant: SHIMADZU CORPORATION

Inventor： MASAHIRO TANAKA

IPC: A61B6/00 ,  H05G1/56 ,  H05G1/46 ,  A61B6/06

CPC classification number: A61B6/06 ,  A61B6/4035 ,  A61B6/405 ,  A61B6/482 ,  A61B6/487 ,  G21K1/10

Abstract: A radiation apparatus conducts a subtraction imaging process where a holder 25 begins to shift when a radiation output ends relative to a first radiation in association with the subtraction imaging and then, once the filter is switched by shifting the holder 25 and when switching of the filter is actually measured, the X-ray tube outputs the radiation in association with a second imaging. With this structure, dual filter is not required to be switched and the imaging can be conducted immediately after an operator so instructs regardless the dual filter phase. The second imaging can be performed immediately after confirming the dual filter is switched in fact.

公开(公告)号：US20180027641A1

公开(公告)日：2018-01-25

申请号：US15586880

申请日：2017-05-04

Applicant: Moxtek, Inc.

Inventor： Chris Carter ,  Jerry Smith

IPC: H05G1/46 ,  H05G1/10

CPC classification number: H05G1/46 ,  H05G1/02 ,  H05G1/10

Abstract: 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.

公开(公告)号：US20150092910A1

公开(公告)日：2015-04-02

申请号：US14487684

申请日：2014-09-16

Applicant: GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC

Inventor： Zhanfeng Xing

IPC: H05G1/46 ,  H05G1/38 ,  G01P3/64 ,  G01N23/04

CPC classification number: G01P3/64 ,  A61B6/032 ,  A61B6/54 ,  A61B6/542 ,  A61B6/545 ,  G01N23/046 ,  G01P3/44 ,  H05G1/38 ,  H05G1/46

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140159581A1

公开(公告)日：2014-06-12

申请号：US14236936

申请日：2012-06-12

Applicant: Ralf Pruemmer ,  Ralf Conrads ,  Klaus Bergmann ,  Felix Kuepper ,  Jeroen Jonkers

Inventor： Ralf Pruemmer ,  Ralf Conrads ,  Klaus Bergmann ,  Felix Kuepper ,  Jeroen Jonkers

IPC: H05G1/46 ,  H05G2/00

CPC classification number: H05G1/46 ,  H05G2/003 ,  H05G2/008

Abstract: 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).

Abstract translation: 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。

公开(公告)号：US20120039443A1

公开(公告)日：2012-02-16

申请号：US13265297

申请日：2010-04-19

Applicant: Rolf Karl Otto Behling

Inventor： Rolf Karl Otto Behling

IPC: H05G1/46

CPC classification number: H05G1/46 ,  H05G1/36 ,  H05G1/54

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090086914A1

公开(公告)日：2009-04-02

申请号：US11864315

申请日：2007-09-28

Applicant: Clarence L. Gordon, III ,  Manoharan Venugopal ,  Debasish Mishra ,  Raghu Chatanathodi ,  Richard Henry Bossi ,  Michael Craig Hutchinson

Inventor： Clarence L. Gordon, III ,  Manoharan Venugopal ,  Debasish Mishra ,  Raghu Chatanathodi ,  Richard Henry Bossi ,  Michael Craig Hutchinson

IPC: H05G1/08 ,  H05G1/46

CPC classification number: H05G1/30

Abstract: A system is provided for radiographic inspection of an object comprising multiple having different material properties. The system comprises a radiation source configured to generate radiation, a display unit for generating a graphical user interface (GUI) including multiple fields. A user enters input data via the fields in the GUI. The input data relates to one or more material properties for each of the regions. A processor is configured to compute a plurality of exposure parameters based on the input data.

Abstract translation: 提供了一种用于对包括具有不同材料特性的多个物体进行射线照相检查的系统。 该系统包括被配置为产生辐射的辐射源，用于生成包括多个场的图形用户界面（GUI）的显示单元。 用户通过GUI中的字段输入输入数据。 输入数据涉及每个区域的一个或多个材料属性。 处理器被配置为基于输入数据来计算多个曝光参数。

公开(公告)号：US07436930B2

公开(公告)日：2008-10-14

申请号：US11402329

申请日：2006-04-11

Applicant: Philipp Bernhardt ,  Stefan Böhm ,  Bernhard Geiger

Inventor： Philipp Bernhardt ,  Stefan Böhm ,  Bernhard Geiger

IPC: H05G1/38 ,  H05G1/46

CPC classification number: G03B42/02 ,  A61B6/00 ,  A61B6/469 ,  H05G1/30

Abstract: With a method for controlling the dose or dose rate when recording x-ray images by means of a detector comprising image elements which record a plurality of dose data values, an actual value is determined for the dose or dose rate from the totality of the data values recorded by the image elements of a predetermined image segment, said actual value being compared with a predetermined target value in order to control the dose or dose rate when recording a further x-ray image. In accordance with the invention, the actual value is determined such that on the basis of a frequency distribution of the dose data values of the image elements assigned to the dominant, a p-quantile is determined, and that the dose data value assigned to the p-quantile is used to determine the actual value.

Abstract translation: 利用包括记录多个剂量数据值的图像元素的检测器记录X射线图像时的剂量或剂量率的控制方法，根据数据的全部来确定剂量或剂量率的实际值 由预定图像段的图像元素记录的值，将所述实际值与预定目标值进行比较，以便在记录另外的X射线图像时控制剂量或剂量率。 根据本发明，确定实际值，使得基于分配给主导的图像元素的剂量数据值的频率分布，确定p分位数，并且分配给 p分位数用于确定实际值。

公开(公告)号：US06977989B2

公开(公告)日：2005-12-20

申请号：US10326454

申请日：2002-12-19

Applicant: Uwe Bothe ,  Axel Semke

Inventor： Uwe Bothe ,  Axel Semke

IPC: A61B6/00 ,  H05G1/46 ,  H05G1/44

CPC classification number: A61B6/589 ,  A61B6/00 ,  A61B6/542 ,  H05G1/46

Abstract: The radiation applied to an object (input dose rate) during irradiation of the object by a radiation source (1) is limited during X-ray exposures. Pairs of values of a control curve which give rise to an input dose rate on the object to be examined which exceeds a predetermined maximum input dose rate are corrected by an arithmetic unit (76). This results in a corrected control curve whose entire length can be used for adjusting the desired tube parameters (tube voltage, tube current or load) without giving rise to the risk of exceeding the maximum input dose rate.

Abstract translation: 在X射线曝光期间，由辐射源（1）照射物体期间施加于物体的辐射（输入剂量率）受到限制。 通过算术单元（76）校正控制曲线对的值，该控制曲线导致超过预定最大输入剂量率的待检查对象上的输入剂量率。 这导致校正的控制曲线，其整个长度可用于调节所需的管参数（管电压，管电流或负载），而不会导致超过最大输入剂量率的风险。

公开(公告)号：US06870898B1

公开(公告)日：2005-03-22

申请号：US10009859

申请日：2000-04-25

Applicant: Thomas von der Haar

Inventor： Thomas von der Haar

IPC: A61B6/03 ,  G01N23/04 ,  H05G1/30 ,  H05G1/46 ,  H05G1/42

CPC classification number: A61B6/032 ,  A61B6/542 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612 ,  H05G1/46

Abstract: A computed tomography (CT) device has adjustable operational parameters and a control unit and a unit for preselecting a combination of operational parameters for an examination to be carried out. The control unit determines, for the case where a combination of operational parameters which might lead to an impermissible operating state is preselected for an examination to be carried out, a value for at least one operational parameter which deviates from the preselected combination of operational parameters and for which the planned examination can be carried out in a manner avoiding the impermissible operating state without a significant reduction in the image quality by comparison with the preselected combination of operational parameters.

Abstract translation: 计算机断层摄影（CT）装置具有可调节的操作参数，以及控制单元和用于预选用于要进行检查的操作参数的组合的单元。 控制单元确定对于可能导致不允许的操作状态的操作参数的组合被预先选择用于要执行的检查的情况，确定偏离预先选择的操作参数组合的至少一个操作参数的值，以及 可以通过与预先选择的操作参数的组合相比较，以避免不允许的操作状态的方式进行计划检查而不显着降低图像质量。