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1. 发明授权

US11751838B2 Systems and methods for controlling an X-ray tube filament 有权
公开(公告)号：US11751838B2
公开(公告)日：2023-09-12
申请号：US17134552
申请日：2020-12-28
申请人： SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
发明人： Hua Li , Jiawen Zhou , Yifeng Jiang , Tao He , Yong Yang
IPC分类号： A61B6/03 , H05G1/34 , A61B6/00 , H05G1/26
CPC分类号： A61B6/582 , A61B6/032 , H05G1/265 , H05G1/34
摘要： This application disclosures a method for calibrating filament current data of an X-ray tube. The method includes obtaining a first value of tube current to be calibrated and a value of filament current to be calibrated, the tube current to be calibrated and the filament current to be calibrated corresponding to a first calibration point; performing an emission operation based on the first value of the tube current to be calibrated and the value of the filament current to be calibrated; determining an actual value of the tube current during the emission operation; determining a difference between the actual value of the tube current and the first value of the tube current to be calibrated; and calibrating, based on the difference, the first calibration point.

2. 发明申请

US20180184990A1 PORTABLE X-RAY GENERATION DEVICE HAVING ELECTRIC FIELD EMISSION X-RAY SOURCE 审中-公开
公开(公告)号：US20180184990A1
公开(公告)日：2018-07-05
申请号：US15741237
申请日：2016-06-30
申请人： VATECH Co., Ltd. , VATECH EWOO Holdings Co.,Ltd.
发明人： Seunghun SHIN , Jinpyo CHUN , Taewoo KIM
IPC分类号： A61B6/14 , H01J35/02 , H05G1/34
CPC分类号： A61B6/145 , A61B6/00 , A61B6/14 , A61B6/40 , A61B6/4405 , G01T1/00 , H01J35/02 , H01J35/025 , H05G1/06 , H05G1/085 , H05G1/12 , H05G1/34
摘要： Disclosed is a portable X-ray generation device, which uses an electric field emission X-ray source, and is thus advantageous in reducing weight and volume and has excellent reliability in X-ray emission performance. The portable X-ray generation device according to the present invention includes an electric field emission X-ray source, which includes a cathode electrode having an electron emitter, an anode electrode having an X-ray target surface, and a gate electrode between the cathode electrode and the anode electrode; and a driving signal generator configured to generate at least three driving signals applied to the cathode electrode, the anode electrode, and the gate electrode, respectively, by direct current power having a predetermined voltage, wherein the driving signal generator includes a current controller maintaining a tube current between the anode electrode and the cathode electrode to have a constant value during X-ray emission.

3. 发明申请

US20180064410A1 SYSTEMS AND METHODS FOR CONTROLLING AN X-RAY TUBE FILAMENT 审中-公开
公开(公告)号：US20180064410A1
公开(公告)日：2018-03-08
申请号：US15798568
申请日：2017-10-31
申请人： SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
发明人： Hua LI , Jiawen ZHOU , Yifeng JIANG , Tao HE , Yong YANG
IPC分类号： A61B6/00
CPC分类号： A61B6/582 , A61B6/032 , H05G1/265 , H05G1/34
摘要： This application disclosures a method for calibrating filament current data of an X-ray tube. The method includes obtaining a first value of tube current to be calibrated and a value of filament current to be calibrated, the tube current to be calibrated and the filament current to be calibrated corresponding to a first calibration point; performing an emission operation based on the first value of the tube current to be calibrated and the value of the filament current to be calibrated; determining an actual value of the tube current during the emission operation; determining a difference between the actual value of the tube current and the first value of the tube current to be calibrated; and calibrating, based on the difference, the first calibration point.

4. 发明授权

US09659739B2 Blanking of electron beam during dynamic focal spot jumping in circumferential direction of a rotating anode disk of an X-ray tube 有权
公开(公告)号：US09659739B2
公开(公告)日：2017-05-23
申请号：US14399658
申请日：2013-05-17
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Christoph Helmut Bathe , Thorben Repenning
IPC分类号： H05G1/34 , H01J35/14 , H01J35/30 , H05G1/46 , A61B6/00 , G01N23/225 , H01J35/24
CPC分类号： H01J35/14 , A61B6/4021 , A61B6/405 , A61B6/4441 , A61B6/54 , G01N23/2252 , H01J35/24 , H01J35/30 , H01J35/305 , H05G1/34 , H05G1/46
摘要： An apparatus (210) and method for total or partial blanking of an electron beam (e) during a jump between the 2 or more positions of a dynamic focal spot (FP) movement in circumferential direction of the electron beam impinging on the focal track (FPTR) of a rotating target disk (230) of a X-ray tube (110). Alternatively the focal spot size can be increased during this short time interval. Overheating of the anode at the focal spot can be prevented.

5. 发明申请

US20170094763A1 BULB TUBE PREHEATING 审中-公开
公开(公告)号：US20170094763A1
公开(公告)日：2017-03-30
申请号：US15206090
申请日：2016-07-08
申请人： SHENYANG NEUSOFT MEDICAL SYSTEMS CO., LTD.
发明人： Jinjun Liu , Qinghe Song , Qingxiang Shu
IPC分类号： H05G1/34 , A61B6/03 , A61B6/00 , H05G1/36
CPC分类号： H05G1/34 , A61B6/032 , A61B6/40 , A61B6/54 , A61B6/58 , A61B6/582 , H05G1/36
摘要： A method and apparatus for preheating a bulb tube of medical equipment is provided. The method includes: selecting a scanning condition which satisfies an equipment calibration condition, as a preheating condition for the bulb tube, from scanning conditions used by the medical equipment; selecting a new preheating condition if an accumulated thermal capacity according to selected preheating conditions is smaller than a target thermal capacity, until the accumulated thermal capacity reaches the target thermal capacity, wherein the accumulated thermal capacity indicates a sum of a thermal capacity estimated to be generated when the bulb tube is preheated according to the selected preheating conditions, and the target thermal capacity indicates a thermal capacity required to complete the preheating of the bulb tube; preheating the bulb tube according to selected preheating conditions and executing an equipment calibration corresponding to each of the preheating conditions during the bulb tube preheating.

6. 发明授权

US09374880B2 Method and apparatus for modulating current in computed tomography imaging system 有权
标题翻译：用于在计算机断层摄影成像系统中调制电流的方法和装置
公开(公告)号：US09374880B2
公开(公告)日：2016-06-21
申请号：US14142956
申请日：2013-12-30
申请人： Shenyang Neusoft Medical Systems Co., Ltd.
发明人： Hongbo Wang
IPC分类号： H05G1/34 , H05G1/10 , A61B6/00 , H05G1/08 , H03C1/10 , H05G1/26
CPC分类号： H05G1/34 , A61B6/405 , A61B6/54 , G05B2219/33155 , G05B2219/36495 , G05B2219/41214 , G05B2219/42067 , H03C1/10 , H05G1/08 , H05G1/10 , H05G1/265
摘要： A method and apparatus of current modulation in a computed tomography imaging system are provided. The method may include: selecting a plurality of sample points from an expected current modulation curve as approach points; establishing an actual current modulation curve, wherein an actual current value of the actual current modulation curve at an approach point approximates an expected current value of an expected current modulation curve, and a variation rate of the actual current is within an allowed range of the computed tomography imaging system; and modulating a current in an X-ray tube of the computed tomography imaging system according to the actual current modulation curve. According to the disclosure, an image valuable to the diagnosis can be obtained with the smallest radiation dose.
摘要翻译：提供了一种计算机断层成像系统中的电流调制方法和装置。该方法可以包括：从预期的当前调制曲线中选择多个采样点作为接近点; 建立实际电流调制曲线，其中接近点处的实际电流调制曲线的实际电流值近似于预期电流调制曲线的预期电流值，并且实际电流的变化率在计算的层析成像系统; 并根据实际的电流调制曲线调制计算机断层摄影成像系统的X射线管中的电流。根据本公开，可以以最小的辐射剂量获得对诊断有价值的图像。

7. 发明申请

US20160174350A1 RADIANT RAY GENERATION CONTROL APPARATUS, RADIATION IMAGING SYSTEM, AND METHOD FOR CONTROLLING THE SAME 审中-公开
公开(公告)号：US20160174350A1
公开(公告)日：2016-06-16
申请号：US15048758
申请日：2016-02-19
申请人： CANON KABUSHIKI KAISHA
发明人： Toshikazu Tamura , Taro Hiroike , Tadahiko Iijima , Hirokazu Ohguri , Toshiya Ishioka
IPC分类号： H05G1/56 , H05G1/30
CPC分类号： A61B6/542 , A61B6/42 , A61B6/4208 , A61B6/4233 , A61B6/4266 , A61B6/4283 , A61B6/4405 , A61B6/4411 , A61B6/4441 , A61B6/465 , A61B6/54 , A61B6/548 , A61B6/56 , A61B6/563 , A61B6/566 , H05G1/30 , H05G1/32 , H05G1/34 , H05G1/38 , H05G1/40 , H05G1/42 , H05G1/44 , H05G1/46 , H05G1/56
摘要： A radiation imaging control apparatus includes an exposure switch configured to instruct radiation emission, an acquisition unit configured to acquire a first signal indicating that the exposure switch is pressed, a first connection unit configured to detachably connect with a control unit of a radiant ray detector to transmit a second signal indicating the driving state of the radiant ray detector, a second connection unit configured to detachably connect with a control unit of a radiant ray generation apparatus to transmit a specific signal, and a control unit configured to perform control to output the specific signal via the second connection unit upon acquisition of the first and second signals, wherein the second connection unit is a connector for making wired connection.

8. 发明授权

US09265135B2 Method and apparatus for heating current control of a pulsed X-ray tube 有权
标题翻译：用于加热脉冲X射线管电流控制的方法和装置
公开(公告)号：US09265135B2
公开(公告)日：2016-02-16
申请号：US14151591
申请日：2014-01-09
申请人： Rudolf Auernhammer , Andreas Böhme , Johannes Walk
发明人： Rudolf Auernhammer , Andreas Böhme , Johannes Walk
IPC分类号： H05G1/34 , H05G1/30 , H05G1/26
CPC分类号： H05G1/34
摘要： A method and an associated apparatus for controlling a heating current flowing through an emitter of a pulsed X-ray tube during pulse pauses are provided. The heating current is controlled by comparing a measured actual value of the heating current with a predefinable desired value of the heating current. A low-pass filtering of the actual value of the heating current is effected before the comparison. A time constant of the low-pass filtering is equal to a thermal time constant of the emitter. A correction of the actual value of the heating current is provided before the low-pass filtering by a first correction value. The first correction value is determined such that a tube current control during the pulses is not compensated for by the heating current control in the pulse pauses.
摘要翻译：提供了一种用于在脉冲暂停期间控制流过脉冲X射线管的发射器的加热电流的方法和相关联的装置。通过将加热电流的测量实际值与加热电流的预定的期望值进行比较来控制加热电流。在比较之前进行加热电流的实际值的低通滤波。低通滤波的时间常数等于发射极的热时间常数。在低通滤波前提供加热电流的实际值的校正第一校正值。第一校正值被确定为使得在脉冲期间的管电流控制不被脉冲暂停中的加热电流控制补偿。

9. 发明申请

US20150289352A1 X-RAY COMPUTED TOMOGRAPHY APPARATUS AND X-RAY GENERATION APPARATUS 有权
标题翻译： X射线计算机摄影装置和X射线发生装置
公开(公告)号：US20150289352A1
公开(公告)日：2015-10-08
申请号：US14746191
申请日：2015-06-22
申请人： Kabushiki Kaisha Toshiba , Toshiba Medical Systems Corporation
发明人： Toyomasa HONDA
IPC分类号： H05G1/12 , G06T11/00 , H05G1/32 , G01N23/04 , H05G1/56
CPC分类号： A61B6/542 , A61B6/03 , A61B6/032 , A61B6/40 , A61B6/4435 , A61B6/54 , G01N23/046 , G01N2223/304 , G01N2223/419 , G06T11/003 , G06T2207/10072 , G06T2207/10116 , H05G1/04 , H05G1/08 , H05G1/10 , H05G1/12 , H05G1/22 , H05G1/26 , H05G1/265 , H05G1/30 , H05G1/32 , H05G1/34 , H05G1/46 , H05G1/54 , H05G1/56
摘要： According to on embodiment, an inverter high voltage generator includes a DC power supply, an inverter, a high voltage converter, a discharge detector, a controller. The DC power supply generates a direct current. The inverter converts the direct current from the DC power supply to an alternating current by switching. The high voltage converter converts an AC output pulse from the inverter to a high voltage. The discharge detector detects an electric discharge that has occurred in an X-ray tube. The controller controls, upon detection of the discharge, switching of the inverter to change a pulse width or a frequency of the AC output pulse from the inverter so as to gradually increase a measured tube voltage value of the X-ray tube up to a target tube voltage value.
摘要翻译：根据本实施例，逆变器高压发生器包括直流电源，逆变器，高压转换器，放电检测器，控制器。直流电源产生直流电流。逆变器通过切换将直流电源的直流电转换为交流电。高电压转换器将来自逆变器的交流输出脉冲转换成高电压。放电检测器检测在X射线管中发生的放电。控制器在检测到放电时控制逆变器的切换以改变来自逆变器的交流输出脉冲的脉冲宽度或频率，以便将测量的X射线管的管电压值逐渐增大到目标值管电压值。

10. 发明授权

US08360640B2 X-ray tube and method for examining a target by scanning with an electron beam 有权
标题翻译： X射线管和用电子束扫描检查靶的方法
公开(公告)号：US08360640B2
公开(公告)日：2013-01-29
申请号：US12521622
申请日：2007-12-28
申请人： Alfred Reinhold
发明人： Alfred Reinhold
IPC分类号： G01D18/00 , H01J35/14
CPC分类号： H01J35/24 , H01J35/14 , H01J2235/08 , H05G1/265 , H05G1/34 , H05G1/52
摘要： The invention relates to an X-ray tube, especially a microfocus X-ray tube (2), comprising means (18) for orienting an electron beam (10) towards a target (4). A control device (20) is used to control the means for orienting the electron beam (10) towards the target (4) in such a way that the electron beam (10) scans the target (4), in addition to a measuring device (22) for measuring the intensity of the target current which flows to different scanning sites when the target (4) is scanned by the electron beam (10), or a measuring variable dependent on the target current, and an evaluation device (24) for associating each measured value of the target flow with the corresponding scanning site. Said X-ray tube enables the easy and economical implementation of a method for checking the operability of the target (4).
摘要翻译：本发明涉及一种X射线管，特别是微焦X射线管（2），其包括用于使电子束（10）朝向靶（4）定向的装置（18）。控制装置（20）用于控制用于使电子束（10）朝向目标（4）定向的装置，使得电子束（10）扫描靶（4），除了测量装置（22），用于测量当通过电子束（10）扫描目标（4）时流动到不同扫描位置的目标电流的强度或取决于目标电流的测量变量，以及评估装置（24）用于将目标流的每个测量值与相应的扫描位置相关联。所述X射线管使得能够容易且经济地实现用于检查目标（4）的可操作性的方法。

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