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1. 发明公开

EP4336540A1 SMALL-TARGET X-RAY SYSTEM 审中-公开
公开(公告)号：EP4336540A1
公开(公告)日：2024-03-13
申请号：EP22195135.3
申请日：2022-09-12
申请人： Excillum AB
发明人： NILSSON, Daniel , LUNDSTRÖM, Ulf
IPC分类号： H01J35/08 , H01J35/14 , H01J35/30 , H05G1/52
摘要： An X-ray system comprising an X-ray source; a sample position; a detector arranged to detect X-ray radiation downstream of said sample position; and a controller is disclosed. The X-ray source comprises an electron source arranged to provide an electron beam; a target arranged to produce X-ray radiation upon impact by said electron beam at an electron beam spot, wherein said target comprises a substrate and a target layer, and wherein said target layer exhibits a hole having a diameter smaller than a diameter of the electron beam spot; a deflector for directing the electron beam to a first position on said target where the electron beam spot is formed at a uniform portion of said target layer away from said hole, and to a second position on said target where the electron beam spot is formed at a portion of said target exhibiting said hole. The controller is configured to acquire, using said detector, a first image with the electron beam directed to said first position, and a second image with the electron beam directed to said second position, and to generate a difference image between the first image and the second image. A corresponding method is also disclosed.

2. 发明公开

EP4195235A1 METHOD AND ARRANGEMENT FOR AN X-RAY SOURCE 无效
公开(公告)号：EP4195235A1
公开(公告)日：2023-06-14
申请号：EP21213046.2
申请日：2021-12-08
申请人： Excillum AB
发明人： TAKMAN, Per , TUOHIMAA, Tomi , LUNDSTRÖM, Ulf
IPC分类号： H01J35/14 , H01J35/06 , H05G1/52
摘要： There is provided an X-ray source comprising an electron source for providing an electron beam, the electron source comprising a cathode, a Wehnelt, and an anode; an electron optic arrangement configured to deflect and focus the electron beam towards a target for generation of X-ray radiation; an arrangement for determining a quantity indicative of a width of the electron beam; and a controller operatively connected to the electron source, the electron optic arrangement, and the arrangement for determining the quantity indicative of a width of the electron beam, the controller configured to compute a quantity dependent on a divergence of the electron beam at an entrance of the electron optic arrangement based on the quantity indicative of a width of the electron beam; and apply a bias voltage to the Wehnelt such that the quantity dependent on the divergence of the electron beam at the entrance of the electron optic arrangement is adjusted towards a desired value. A corresponding method is also provided.

3. 发明授权

EP3804473B1 METHOD FOR CONTROLLING AN X-RAY SOURCE AND X-RAY SOURCE 有权
公开(公告)号：EP3804473B1
公开(公告)日：2022-03-23
申请号：EP19728453.2
申请日：2019-06-07
发明人： TAKMAN, Per , LUNDSTRÖM, Ulf
IPC分类号： H05G1/46 , H05G1/28 , H05G1/26 , H05G1/52

4. 发明授权

EP3597013B1 APPARATUS FOR GENERATING X-RAYS 有权转让
公开(公告)号：EP3597013B1
公开(公告)日：2020-07-15
申请号：EP18726491.6
申请日：2018-05-30
申请人： Koninklijke Philips N.V.
发明人： DOKANIA, Anand, Kumar , BEHLING, Rolf, Karl, Otto
IPC分类号： H05G1/52 , H05G1/34

5. 发明授权

EP2283712B1 X-RAY APPARATUS USED IN CONJUNCTION WITH A CHARGED PARTICLE CANCER THERAPY SYSTEM 失效
标题翻译：连同带电粒子癌症治疗系统使用的X射线装置
公开(公告)号：EP2283712B1
公开(公告)日：2018-01-24
申请号：EP09750857.6
申请日：2009-05-21
申请人： Balakin, Vladimir Yegorovich
发明人： Balakin, Vladimir Yegorovich
IPC分类号： H05H13/04 , A61N5/10 , A61B6/04 , H05H7/10 , H05H7/08 , H01J35/00 , H05G1/00 , H05G1/02 , H05G1/52
CPC分类号： G21K1/087 , A61B6/4258 , A61N2005/1087 , G21K1/093 , G21K1/14 , H05H7/04 , H05H7/08 , H05H7/10 , H05H13/04
摘要： The invention comprises an X-ray method and apparatus used in conjunction with charged particle radiation therapy of cancerous tumors. The system uses an X-ray beam that lies in substantially the same path as a charged particle beam path of a particle beam cancer therapy system, has an elongated lifetime, and/or that is synchronized with patient respiration. The system creates an electron beam that strikes an X-ray generation source where the X-ray generation source is located proximate to the proton beam path. By generating the X-rays near the proton beam path, an X-ray path that is essentially the proton beam path is created. Using the generated X-rays, the system collects X-ray images of a localized body tissue region about a cancerous tumor, which are usable for: fine tuning body alignment relative to the proton beam path and/or to control the proton beam path to accurately and precisely target the tumor.

6. 发明公开

EP3240012A2 ELECTRONIC CALIBRATION OF FOCAL SPOT POSITION IN AN X-RAY TUBE 有权
公开(公告)号：EP3240012A2
公开(公告)日：2017-11-01
申请号：EP17168624.9
申请日：2017-04-28
申请人： Varex Imaging Corporation
发明人： CANFIELD, Bradley , MEILER, Michael , WOODMAN, Colton , YOON, Inwoo
IPC分类号： H01J35/14 , A61B6/00 , H05G1/52
CPC分类号： H05G1/52 , A61B6/032 , A61B6/40 , A61B6/4435 , A61B6/582 , A61B6/583 , H01J35/06 , H01J35/08 , H01J35/14
摘要： Technology is described for calibrating a deflected position of a central ray 352 of an x-ray tube 210 to a radiation imager 240. An x-ray system includes an x-ray tube and a tube control unit (TCU). The x-ray tube includes a cathode that includes an electron emitter configured to emit an electron beam, an anode configured to receive the electron beam and generate x-rays with a central ray from electrons of the electron beam colliding on a focal spot of the anode, and a steering magnetic multipole between the cathode and the anode that is configured to produce a steering magnetic field from a steering signal. At least two poles of the steering magnetic multipole are on opposite sides of the electron beam. The TCU includes at least one steering driver configured to generate the steering signal. The TCU is configured to convert a position correction value to the steering signal.

7. 发明授权

EP1995757B1 MULTI X-RAY GENERATOR AND MULTI-RADIOGRAPHY SYSTEM 有权
标题翻译：多个X射线发生器和多放射成像系统
公开(公告)号：EP1995757B1
公开(公告)日：2013-06-19
申请号：EP07715172.8
申请日：2007-03-02
申请人： Canon Kabushiki Kaisha
发明人： OKUNUKI, Masahiko , TSUJII, Osamu , TSUKAMOTO, Takeo
IPC分类号： H01J35/08 , G01T1/24 , H05G1/02 , H05G1/52
CPC分类号： H01J35/065 , H01J35/08 , H01J35/16 , H01J35/18 , H01J2235/062 , H01J2235/068 , H01J2235/087 , H01J2235/166 , H01J2235/168

8. 发明公开

EP2283712A2 X-RAY METHOD AND APPARATUS USED IN CONJUNCTION WITH A CHARGED PARTICLE CANCER THERAPY SYSTEM 失效
标题翻译：用于与癌症治疗系统连接使用带电粒子X的方法和装置
公开(公告)号：EP2283712A2
公开(公告)日：2011-02-16
申请号：EP09750857.6
申请日：2009-05-21
申请人： Balakin, Vladimir Yegorovich
发明人： Balakin, Vladimir Yegorovich
IPC分类号： H05H13/04 , A61N5/10 , A61B6/04 , H05H7/10 , H05H7/08 , H01J35/00 , H05G1/00 , H05G1/02 , H05G1/52
CPC分类号： G21K1/087 , A61B6/4258 , A61N2005/1087 , G21K1/093 , G21K1/14 , H05H7/04 , H05H7/08 , H05H7/10 , H05H13/04
摘要： The invention comprises an X-ray method and apparatus used in conjunction with charged particle radiation therapy of cancerous tumors. The system uses an X-ray beam that lies in substantially the same path as a charged particle beam path of a particle beam cancer therapy system, has an elongated lifetime, and/or that is synchronized with patient respiration. The system creates an electron beam that strikes an X-ray generation source where the X-ray generation source is located proximate to the proton beam path. By generating the X-rays near the proton beam path, an X-ray path that is essentially the proton beam path is created. Using the generated X-rays, the system collects X-ray images of a localized body tissue region about a cancerous tumor, which are usable for: fine tuning body alignment relative to the proton beam path and/or to control the proton beam path to accurately and precisely target the tumor.

9. 发明授权

EP1958230B1 X-RAY TUBE AND METHOD FOR DETERMINATION OF FOCAL SPOT PROPERTIES 有权
标题翻译： X射线管和VERFARHEN焦点特性的测定
公开(公告)号：EP1958230B1
公开(公告)日：2010-07-28
申请号：EP06831958.1
申请日：2006-11-27
申请人： Philips Intellectual Property & Standards GmbH , Koninklijke Philips Electronics N.V.
发明人： BEHLING, Rolf, Karl, Otto , CHROST, Wolfgang , LÜBCKE, Michael
IPC分类号： H01J35/10 , H01J35/14 , H05G1/52
CPC分类号： H01J35/10 , H01J35/14 , H01J2235/086 , H05G1/52

10. 发明公开

EP2139397A2 X-RAY BEAM Z-AXIS POSITIONING 有权
标题翻译： Z-轴定位X射线
公开(公告)号：EP2139397A2
公开(公告)日：2010-01-06
申请号：EP08751091.3
申请日：2008-03-28
申请人： Koninklijke Philips Electronics N.V.
发明人： MILLER, Lester, M. , KAMATH, Janardhan, K. , LUHTA, Randall, P.
IPC分类号： A61B6/00 , A61B6/08 , H05G1/36 , G21K1/02 , A61B6/06 , H05G1/26 , H01J35/10 , H05G1/52
CPC分类号： A61B6/08 , A61B6/032 , A61B6/4021 , A61B6/4488 , H01J35/14 , H05G1/52
摘要： A medical imaging system includes an x-ray source (112) having a focal spot that emits radiation that traverses an examination region (108). The position of the focal spot along a longitudinal direction is a function of a temperature of one or more x-ray source components. The system further includes a detector (120) that detects the radiation and a collimator (116), disposed between the x-ray source (112) and the examination region (108), that collimates that radiation along the longitudinal direction. A focal spot position estimator (132) dynamically computes an estimated position of the focal spot along the longitudinal direction based on the temperature of one or more x-ray source components. A collimator positioner (128) positions the collimator (116) along the longitudinal direction based on the estimated focal spot position prior to performing a scan.

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