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1. 发明申请

US20200058461A1 VAPOUR MONITORING 审中-公开
公开(公告)号：US20200058461A1
公开(公告)日：2020-02-20
申请号：US16499582
申请日：2018-03-27
申请人： Excillum AB
发明人： Per TAKMAN , Tomi TUOHIMAA
IPC分类号： H01J35/08 , H05G1/36 , H05G1/26 , H01J35/16
摘要： A method for generating X-ray radiation, the method including providing a liquid target in a chamber, directing an electron beam towards the liquid target such that the electron beam interacts with the liquid target to generated X-ray radiation, estimating a number of particles produced from the interaction between the electron beam and the liquid target by measuring a number of positively charged particles in the chamber and eliminating a contribution from scattered electrons to the estimated number of particles, and controlling the electron beam, and/or a temperature in a region of the liquid target in which the electron beam interacts with the target, such that the estimated number of particles is below a predetermined limit. Also, a corresponding X-ray source.

2. 发明授权

US10466372B2 X-ray beam intensity monitoring device and X-ray inspection 有权
公开(公告)号：US10466372B2
公开(公告)日：2019-11-05
申请号：US14981953
申请日：2015-12-29
申请人： TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
发明人： Kejun Kang , Shuwei Li , Qingjun Zhang , Yuanjing Li , Yulan Li , Ziran Zhao , Yinong Liu , Yaohong Liu , Weibin Zhu , Xiaolin Zhao , Huishao He
IPC分类号： G01T7/00 , G01T1/20 , H04N5/57 , G01T1/16 , H01L27/30 , H05G1/36 , G21K1/02 , G01T1/17 , G01V5/00 , H04N5/369 , G06T1/00
摘要： The present invention discloses an X-ray beam intensity monitoring device and an X-ray inspection system. The X-ray beam intensity monitoring device comprises an intensity detecting module and a data processing module, wherein the intensity detecting module is adopted to be irradiated by the X-ray beam and send a detecting signal, the data processing module is coupled with the intensity detecting module to receive the detecting signal and output an X-ray beam intensity monitoring signal, wherein the X-ray beam intensity monitoring signal includes a dose monitoring signal for the X-ray beam and a brightness correction signal for correcting signal values of the X-ray beam. The X-ray beam intensity monitoring device can simultaneously perform dose monitoring and brightness monitoring, thereby improving the service efficiency of the X-ray beam intensity monitoring device. Moreover, the monitoring result of the X-ray beam intensity can be more accurate and reliable.

3. 发明授权

US09384547B2 X-ray image diagnostic apparatus and method for controlling X-ray generation device 有权
标题翻译：用于控制X射线产生装置的X射线图像诊断装置和方法
公开(公告)号：US09384547B2
公开(公告)日：2016-07-05
申请号：US14232338
申请日：2012-07-12
申请人： Konosuke Temmei , Tadashi Nakamura , Yuji Sakai
发明人： Konosuke Temmei , Tadashi Nakamura , Yuji Sakai
IPC分类号： A61B6/00 , G06T7/00 , H05G1/36 , G06T5/00 , G06T5/40
CPC分类号： G06T7/0012 , A61B6/542 , G06T5/009 , G06T5/40 , G06T2207/10116 , G06T2207/30004 , H05G1/36
摘要： In order to follow the ABS conditions when the movement of the object position, such as the movement of an object or the movement of an X-ray tube, occurs during fluoroscopy, an X-ray image diagnostic apparatus includes a histogram generation unit 6b that generates a histogram showing the distribution of brightness values of an X-ray image of an object; an object region detection unit 6c that detects an object region, which is a region where the object is imaged, in the X-ray image on the basis of the histogram; and an X-ray condition determination unit 2a that determines X-ray conditions defining an output of X-rays so that a brightness value representing the object region approaches a target brightness value of the object region set in advance.
摘要翻译：为了在荧光透视期间发生诸如物体的运动或X射线管的运动之类的物体位置的运动时遵循ABS条件，X射线图像诊断装置包括直方图生成单元6b，其直方图生成单元6b 生成对象的X射线图像的亮度分布的直方图，基于直方图，在X射线图像中检测作为成像对象的区域的对象区域的对象区域检测单元6c; 以及X射线条件确定单元2a，其确定定义X射线输出的X射线条件，使得表示对象区域的亮度值接近预先设定的对象区域的目标亮度值。

4. 发明申请

US20050163284A1 X-ray generator 有权
标题翻译： X光发生器
公开(公告)号：US20050163284A1
公开(公告)日：2005-07-28
申请号：US10513610
申请日：2003-04-25
申请人： Tutomu Inazuru
发明人： Tutomu Inazuru
IPC分类号： G01N23/04 , G21K5/00 , G21K5/02 , H01J35/18 , H05G1/26 , H05G1/30 , H05G1/36 , H05G1/44 , G21G4/00 , H01J35/00 , H05H1/00
CPC分类号： H05G1/30 , G01N23/04 , H05G1/36
摘要： An X-ray generator of this invention has an X-ray monitor that monitors a state of an X-ray emitted from a target. Hence the state of the X-ray can be monitored in real time to maintain the X-ray in a constant state. The X-ray monitor is positioned off the path on which an X-ray transmitted from a first exit window travels. Hence, when the X-ray is emitted from the first exit window to an object to be inspected, the X-ray monitor does not obstruct the approaching of the object to the first exit window. This makes it possible to acquire X-ray images of high magnification.
摘要翻译：本发明的X射线发生器具有监视从目标射出的X射线状态的X射线监视器。因此，可以实时监测X射线的状态，以将X射线维持在恒定状态。 X射线监视器位于从第一出口窗口传播的X射线行进的路径上。因此，当X射线从第一出射窗口发射到被检查物体时，X射线监视器不妨碍物体接近第一出射窗口。这使得可以获取高倍率的X射线图像。

5. 发明授权

US6088425A X-ray apparatus 失效
标题翻译： X光装置
公开(公告)号：US6088425A
公开(公告)日：2000-07-11
申请号：US53130
申请日：1998-04-01
申请人： Katsuhiro Ono
发明人： Katsuhiro Ono
IPC分类号： H05G1/30 , A61B6/03 , G21K5/02 , G21K5/08 , H01J35/10 , H05G1/26 , H05G1/36 , H05G1/66
CPC分类号： H05G1/36 , H05G1/26
摘要： A rotary anode type X-ray tube is controlled by an X-ray emission control device. In the X-ray emission control device, the maximum permissible storage heat quantity which can be applied to the rotary anode of the X-ray tube is set, the anode storage heat quantity which is lowered based on the cooling characteristic of the rotary anode is calculated, the present anode storage heat quantity is calculated, and the imaginary anode storage heat quantity for the next X-ray emitting condition which is derived by calculation using the correction functions based on the anode input power, emission continuation time, anode rotation speed and focal point size, the anode input power of the next predicted X-ray emission, and X-ray emission continuation time is calculated. The maximum permissible storage heat quantity, the present anode storage heat quantity and the imaginary anode storage heat quantity in the next X-ray emitting condition are compared and calculated to determine permission or inhibition of the next X-ray emission. The performance of the mounted X-ray tube is fully utilized by use of the X-ray emission control device, the wait time to the next X-ray emission can always be suppressed to minimum, and the X-ray tube apparatus can be controlled with high speed and high reliability.
摘要翻译：旋转阳极型X射线管由X射线发射控制装置控制。在X射线发射控制装置中，设定能够施加到X射线管的旋转阳极的最大容许积存热量，基于旋转阳极的冷却特性而降低的阳极储存热量为计算出当前的阳极储存热量，并且通过使用基于阳极输入功率，发射持续时间，阳极转速和基于阳极的输入功率的校正功能计算导出的下一个X射线发射条件的虚拟阳极储存热量计算焦点尺寸，下一预测X射线发射的阳极输入功率和X射线发射持续时间。比较并计算下一个X射线发射条件下的最大允许存储热量，当前阳极储存热量和虚拟阳极储存热量，以确定下一个X射线发射的允许或抑制。通过使用X射线发射控制装置可充分利用安装的X射线管的性能，可以总是将下一个X射线发射的等待时间抑制到最小，并且可以控制X射线管装置具有高速度和高可靠性。

6. 发明授权

US5675624A Adaptive x-ray brightness and display control for a medical imaging system 失效
标题翻译：医疗成像系统的自适应x射线亮度和显示控制
公开(公告)号：US5675624A
公开(公告)日：1997-10-07
申请号：US572414
申请日：1995-12-14
申请人： Gary F. Relihan , Steven P. Roehm , Ruchi Mangalik
发明人： Gary F. Relihan , Steven P. Roehm , Ruchi Mangalik
IPC分类号： H05G1/64 , A61B6/00 , H04N5/32 , H05G1/36 , H05G1/60
CPC分类号： H04N5/32 , H05G1/36 , H05G1/60
摘要： An x-ray imaging system includes a source of x-rays, a video camera which produces an image signal formed by x-ray attenuation values, and image signal processor and a video monitor for displaying the x-ray image. The system also has an automatic image control that includes a peak detector, an average brightness detector and a transfer function generator for the image processor. The peak detector receives the image signal and produces a video gain control signal for controlling the video camera in response to a comparison of a peak level of the image signal to a peak reference level. The average the brightness detector employs the image signal to produce a feedback signal which controls by the source of x-rays. The transfer function generator produces a histogram of intensity levels in the image signal which histogram forms a look-up table that is used by the image processor to transform the image signal into the adjusted image signal for display.
摘要翻译： x射线成像系统包括x射线源，产生由x射线衰减值形成的图像信号的摄像机，以及用于显示x射线图像的图像信号处理器和视频监视器。该系统还具有包括用于图像处理器的峰值检测器，平均亮度检测器和传递函数发生器的自动图像控制。峰值检测器接收图像信号并产生用于响应于图像信号的峰值电平与峰值参考电平的比较来控制摄像机的视频增益控制信号。亮度检测器的平均值采用图像信号产生由X射线源控制的反馈信号。传递函数发生器产生图像信号中的强度级的直方图，该直方图形成由图像处理器将图像信号转换成经调整的图像信号进行显示的查找表。

7. 发明授权

US5461658A X-ray examination apparatus 失效
标题翻译： X光检查仪
公开(公告)号：US5461658A
公开(公告)日：1995-10-24
申请号：US229502
申请日：1994-04-19
申请人： Johannes H. M. Joosten
发明人： Johannes H. M. Joosten
IPC分类号： A61B6/00 , H04N5/32 , H04N7/18 , H05G1/36 , H05G1/64
CPC分类号： H05G1/64 , H05G1/36
摘要： An x-ray examination apparatus is provided with an auxiliary light-detection system for performing brightness control of a visible image produced on the exit screen of the x-ray image intensifier. The auxiliary light-detection system includes a photosensor having a wide dynamic range and a photodetector having a multitude of photosensitive elements so as to provide spatial resolving power. In particular the photodetector is a charge-coupled device (CCD-detector) having an inherently limited dynamic range. Brightness-control, notably avoiding overexposure in certain regions, is carried out by assembling relevant pixel-values of parts of the image into a control signal. The sensitivity of the CCD-sensor is adjusted by employing of the signal of the photosensor and a sensitivity-control device. Therefore, the sensitivity of the light-detection system is made to match the dynamic range of images due to a collection of x-ray exposures. In order to obtain a control signal that is optimized to relevant pans of the visible image and being independent of average brightness over the entire area of an image, the signal produced by the CCD-detector, that is reciprocal to the average brightness, is multiplied by the signal of the photosensor, that is proportional to the average brightness.
摘要翻译： X射线检查装置设置有用于对在X射线图像增强器的出射屏幕上产生的可视图像进行亮度控制的辅助光检测系统。辅助光检测系统包括具有宽动态范围的光传感器和具有多个感光元件的光电检测器，以便提供空间分辨能力。特别地，光电检测器是具有固有有限的动态范围的电荷耦合器件（CCD检测器）。通过将图像的各部分的相关像素值组装成控制信号来执行亮度控制，特别是避免某些区域中的过度曝光。通过采用光电传感器和灵敏度控制装置的信号来调整CCD传感器的灵敏度。因此，由于X射线曝光的收集，使光检测系统的灵敏度与图像的动态范围相匹配。为了获得对可视图像的相关平板进行优化并且与图像的整个区域上的平均亮度无关的控制信号，由CCD检测器产生的与平均亮度相反的信号被乘以通过光电传感器的信号，这与平均亮度成比例。

8. 发明授权

US5448613A X-ray diagnostics installation 失效
标题翻译： X光诊断安装
公开(公告)号：US5448613A
公开(公告)日：1995-09-05
申请号：US160654
申请日：1993-12-02
申请人： Joerg Haendle , Heinz Horbaschek
发明人： Joerg Haendle , Heinz Horbaschek
IPC分类号： A61B6/02 , H04N5/235 , H04N5/32 , H05G1/36 , H05G1/64
CPC分类号： A61B6/4225 , H04N5/2351 , H04N5/32 , H05G1/36 , H05G1/64
摘要： An x-ray diagnostics installation has an x-ray image intensifier video chain which includes a semiconductor detector composed of pixels arranged in a matrix, serving as the video pick-up and a detector for identifying the average image brightness at the output luminescence screen of the x-ray image intensifier within a predetermined image region. A first read-out circuit is provided for pixels of a first group in the image, which is operated with a read-out clock at a first frequency, and a second read-out circuit is provided for pixels of a second group distributed over the area of the semiconductor detector, which is operated with a read-out clock at a second frequency. The second frequency is higher than the first frequency. The output signals of the pixels of the second group are supplied to an evaluation circuit, and the output signals of the first group of pixels are supplied to the video chain. Image production parameters, such as image brightness, can be controlled on the basis of the output signals of the second group of pixels.
摘要翻译： x射线诊断装置具有x射线图像增强器视频链，其包括由排列成矩阵的像素组成的半导体检测器，用作视频拾取器，以及用于识别输出发光屏幕上的平均图像亮度的检测器 x射线图像增强器在预定图像区域内。为图像中的第一组的像素提供第一读出电路，其以第一频率的读出时钟操作，并且为第二组分配的第二组的像素提供第二读出电路半导体检测器的区域，其以第二频率的读出时钟操作。第二频率高于第一频率。将第二组的像素的输出信号提供给评估电路，并将第一组像素的输出信号提供给视频链。可以基于第二组像素的输出信号来控制诸如图像亮度的图像产生参数。

9. 发明授权

US5446780A X-ray apparatus with mechanical distance-measuring device 失效
标题翻译：具有机械距离测量装置的X射线装置
公开(公告)号：US5446780A
公开(公告)日：1995-08-29
申请号：US202018
申请日：1994-03-25
申请人： Horst Aichinger , Thomas Schmitt
发明人： Horst Aichinger , Thomas Schmitt
IPC分类号： A61B6/06 , A61B6/08 , G01B7/02 , H05G1/36 , H05G1/44 , A61B10/00
CPC分类号： A61B6/589 , G01B7/026 , H05G1/36 , H05G1/44
摘要： An x-ray apparatus includes an x-ray tube having a focus, the x-ray tube being contained in a housing and the housing having a mechanical distance-measuring device attache thereto. The mechanical distance-measuring device is suitable for obtaining a measured value which exactly corresponds to the focus-to-skin distance for all types of examinations. The mechanical distance-measuring device, which may be a tape measure, is connected to an electrical signal generator which converts the mechanically measured value into a corresponding electrical signal.
摘要翻译： X射线装置包括具有焦点的X射线管，X射线管被容纳在壳体中，并且壳体具有附着的机械距离测量装置。机械距离测量装置适用于获得与所有类型检查的对焦 - 皮肤距离精确对应的测量值。可以是卷尺的机械距离测量装置连接到电信号发生器，其将机械测量值转换成相应的电信号。

10. 发明授权

US5155753A X-ray diagnostics installation which permits adjustment of the position or size of the dominant region of the image 失效
标题翻译：允许调整图像主要区域的位置或尺寸的X射线诊断装置
公开(公告)号：US5155753A
公开(公告)日：1992-10-13
申请号：US647700
申请日：1991-01-29
申请人： Gerhard Kuetterer
发明人： Gerhard Kuetterer
IPC分类号： A61B6/00 , H04N5/32 , H05G1/36 , H05G1/64
CPC分类号： H05G1/64 , H05G1/36
摘要： An x-ray diagnostics installation for producing x-ray images has an x-ray image intensifier with an output screen on which a light image corresponding to x-rays attenuated by an examination subject is present, the light image having a dominant region of primary medical interest. A detector is provided for measuring the mean image brightness of the dominant region, the detector having an optical imaging scale. An adjustment element is provided for varying the optical imaging scale of the detector so that at least one of the position and size of the dominant region is adjustable with respect to the light image.
摘要翻译：用于产生X射线图像的X射线诊断装置具有X射线图像增强器，其具有输出屏幕，在该输出屏幕上存在对应于由检查对象衰减的x射线的光图像，所述光图像具有主要区域的主要区域医疗利益。提供了一种用于测量主要区域的平均图像亮度的检测器，该检测器具有光学成像标尺。提供调节元件以改变检测器的光学成像标度，使得主要区域的位置和尺寸中的至少一个相对于光图像是可调节的。

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