JP4810056B2 - 高放出x線管用のカソード - Google Patents
高放出x線管用のカソード Download PDFInfo
- Publication number
- JP4810056B2 JP4810056B2 JP2003281406A JP2003281406A JP4810056B2 JP 4810056 B2 JP4810056 B2 JP 4810056B2 JP 2003281406 A JP2003281406 A JP 2003281406A JP 2003281406 A JP2003281406 A JP 2003281406A JP 4810056 B2 JP4810056 B2 JP 4810056B2
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- emitter
- backing
- anode
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
- H01J35/153—Spot position control
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/06—Cathodes
- H01J35/066—Details of electron optical components, e.g. cathode cups
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
- H01J35/147—Spot size control
Description
24 エミッタ
26 空洞
30 開口
32 カソード前面部材
36 バッキング
42 バッキング絶縁体
Claims (12)
- X線源を作動させるための方法であって、
カソード(12)の単一のエミッタ(24)から電子を放出する段階と、
前記エミッタの前面に配置され、開口を有するカソード前面部材と、前記エミッタを挟んで前記カソード前面部材と向かい合うように配置されたバッキングとの間をバイアスすることにより、前記開口を通過する電子ビーム(34)をアノード(18)上の焦点上へ集束させかつ偏向させ、該アノード(18)からX線が放出されるようにする段階と、
を含み、
前記エミッタは前記バッキングと前記開口との間に配置され、
前記エミッタは前記開口と平行で平坦な形状の前面(28)を備え、該前面が前記エミッタにおける電子の放出面積の最も大きな部分であり、
前記カソード前面部材と前記バッキングとの間のバイアスを変更することにより前記電子ビーム(34)の圧縮比を修正する段階を含むことを特徴とする方法。 - 前記バッキング(36)は、Vハ゛ックでバイアスされ、前記カソード前面部材(32)の前記開口(30)は、V開口でバイアスされ、前記エミッタ(24)は、Vエミッタでバイアスされていることを特徴とする、請求項1に記載の方法。
- Vハ゛ック<Vエミッタの場合には、Vハ゛ック≧Vエミッタの場合よりも大きなビーム圧縮比が得られる、請求項2に記載の方法。
- 前記バッキングは、複数のバッキング絶縁体(42)を介して前記カソード前面部材に対して接合され、前記カソード前面部材と前記バッキングとの間に開放された空洞(26)が形成される、請求項1乃至3のいずれかに記載の方法。
- 前記圧縮比を修正する段階が、より大きい熱電子エミッタ面積からの熱電子の電子放出を開始し、引き続いてより高い電子ビーム圧縮比と組み合わせる段階を含む、請求項1乃至4のいずれかに記載の方法。
- アノード(18)に対向し、該アノードから間隔を置いて配置されたカソード組立体(22)における電子放出の高ビーム電流を、X線管(10)における様々な寸法にされた焦点へ集束させる方法であって、
請求項1乃至5のいずれかに記載のX線源を作動させるための方法により、前記電子ビーム(34)を前記アノード(18)上の前記焦点へ導く、
ことを特徴とする方法。 - X線管(10)用のカソード(12)であって、
アノード(18)に対向し、該アノードから間隔を置いて配置され、前記X線管(10)の作動中に前記カソード(12)が前記アノード(18)に対して負の電位に維持されているカソード組立体(22)を含み、該カソード組立体(22)は、
前記カソード組立体中に配置された、前記X線管(10)の作動中に電子ビーム(34)を前記アノード(18)上の焦点に対して放出するための単一のエミッタ(24)と、
前記エミッタ(24)の第1の側に配置された、それによって形成された開口(30)を有するカソード前面部材(32)と、
前記エミッタ(24)の第2の側に配置され、バッキング絶縁体(42)を介して前記カソード前面部材(32)に作動可能に接合されたバッキング(36)と、
前記カソード前面部材と前記バッキングとの間にバイアスを加えるための手段と、
前記カソード前面部材と前記バッキングとの間のバイアスを変更することにより前記電子ビーム(34)の圧縮比を修正する手段と、
を含み、
前記エミッタは前記バッキングと前記開口との間に配置され、
前記エミッタは前記開口と平行で平坦な形状の前面(28)を備え、該前面が前記エミッタにおける電子の放出面積の最も大きな部分であることを特徴とするカソード(12)。 - 前記圧縮比を修正する手段が、より大きい熱電子エミッタ面積からの熱電子の電子放出を開始し、引き続いてより高い電子ビーム圧縮比と組み合わせる、請求項7に記載のカソード(12)。
- 前記バッキング(36)は、Vハ゛ックでバイアスされ、前記カソード前面部材(32)の前記開口(30)は、V開口でバイアスされ、前記エミッタ(24)は、Vエミッタでバイアスされており、Vハ゛ック<Vエミッタの場合には、Vハ゛ック≧Vエミッタの場合よりも大きなビーム圧縮比が得られることを特徴とする、請求項7に記載のカソード(12)。
- それによって形成された開口(30)を有する少なくとも1つの中間電極部材(52)を更に含み、前記少なくとも1つの中間電極部材(52)は、前記カソード前面部材(32)と前記バッキング(36)との間に配置され、前記少なくとも1つの電極部材(52)は、前記エミッタ(24)から放出された前記電子ビーム(34)を意のままに成形するように構成されていることを特徴とする、請求項7乃至9のいずれかに記載のカソード(12)。
- 前記バッキングは、複数のバッキング絶縁体(42)を介して前記カソード前面部材に対して接合され、前記カソード前面部材と前記バッキングとの間に開放された空洞(26)が形成される、請求項7乃至10のいずれかに記載のカソード(12)。
- アノードと、請求項7乃至11のいずれかに記載のカソード(12)とを備えるX線管(10)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/064,606 US6785359B2 (en) | 2002-07-30 | 2002-07-30 | Cathode for high emission x-ray tube |
US10/064,606 | 2002-07-30 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2004063471A JP2004063471A (ja) | 2004-02-26 |
JP2004063471A5 JP2004063471A5 (ja) | 2006-09-07 |
JP4810056B2 true JP4810056B2 (ja) | 2011-11-09 |
Family
ID=31186014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003281406A Expired - Lifetime JP4810056B2 (ja) | 2002-07-30 | 2003-07-29 | 高放出x線管用のカソード |
Country Status (3)
Country | Link |
---|---|
US (1) | US6785359B2 (ja) |
JP (1) | JP4810056B2 (ja) |
DE (1) | DE10334606A1 (ja) |
Families Citing this family (124)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0525593D0 (en) | 2005-12-16 | 2006-01-25 | Cxr Ltd | X-ray tomography inspection systems |
US8451974B2 (en) | 2003-04-25 | 2013-05-28 | Rapiscan Systems, Inc. | X-ray tomographic inspection system for the identification of specific target items |
US8243876B2 (en) | 2003-04-25 | 2012-08-14 | Rapiscan Systems, Inc. | X-ray scanners |
US8094784B2 (en) | 2003-04-25 | 2012-01-10 | Rapiscan Systems, Inc. | X-ray sources |
GB0812864D0 (en) | 2008-07-15 | 2008-08-20 | Cxr Ltd | Coolign anode |
US8837669B2 (en) | 2003-04-25 | 2014-09-16 | Rapiscan Systems, Inc. | X-ray scanning system |
US10483077B2 (en) | 2003-04-25 | 2019-11-19 | Rapiscan Systems, Inc. | X-ray sources having reduced electron scattering |
US8223919B2 (en) | 2003-04-25 | 2012-07-17 | Rapiscan Systems, Inc. | X-ray tomographic inspection systems for the identification of specific target items |
US9113839B2 (en) | 2003-04-25 | 2015-08-25 | Rapiscon Systems, Inc. | X-ray inspection system and method |
US7949101B2 (en) | 2005-12-16 | 2011-05-24 | Rapiscan Systems, Inc. | X-ray scanners and X-ray sources therefor |
US9208988B2 (en) | 2005-10-25 | 2015-12-08 | Rapiscan Systems, Inc. | Graphite backscattered electron shield for use in an X-ray tube |
US9077022B2 (en) * | 2004-10-29 | 2015-07-07 | Medtronic, Inc. | Lithium-ion battery |
US7576481B2 (en) * | 2005-06-30 | 2009-08-18 | General Electric Co. | High voltage stable cathode for x-ray tube |
US9046465B2 (en) | 2011-02-24 | 2015-06-02 | Rapiscan Systems, Inc. | Optimization of the source firing pattern for X-ray scanning systems |
US7479798B1 (en) * | 2006-05-16 | 2009-01-20 | Altera Corporation | Selectively disabled output |
US7409043B2 (en) * | 2006-05-23 | 2008-08-05 | General Electric Company | Method and apparatus to control radiation tube focal spot size |
WO2008047269A2 (en) * | 2006-10-17 | 2008-04-24 | Philips Intellectual Property & Standards Gmbh | Emitter for x-ray tubes and heating method therefore |
US8311186B2 (en) * | 2007-12-14 | 2012-11-13 | Schlumberger Technology Corporation | Bi-directional dispenser cathode |
US7939809B2 (en) * | 2008-05-22 | 2011-05-10 | Vladimir Balakin | Charged particle beam extraction method and apparatus used in conjunction with a charged particle cancer therapy system |
US9095040B2 (en) | 2008-05-22 | 2015-07-28 | Vladimir Balakin | Charged particle beam acceleration and extraction method and apparatus used in conjunction with a charged particle cancer therapy system |
US8436327B2 (en) | 2008-05-22 | 2013-05-07 | Vladimir Balakin | Multi-field charged particle cancer therapy method and apparatus |
US9498649B2 (en) | 2008-05-22 | 2016-11-22 | Vladimir Balakin | Charged particle cancer therapy patient constraint apparatus and method of use thereof |
US8718231B2 (en) | 2008-05-22 | 2014-05-06 | Vladimir Balakin | X-ray tomography method and apparatus used in conjunction with a charged particle cancer therapy system |
US9155911B1 (en) | 2008-05-22 | 2015-10-13 | Vladimir Balakin | Ion source method and apparatus used in conjunction with a charged particle cancer therapy system |
US8378321B2 (en) | 2008-05-22 | 2013-02-19 | Vladimir Balakin | Charged particle cancer therapy and patient positioning method and apparatus |
US8907309B2 (en) | 2009-04-17 | 2014-12-09 | Stephen L. Spotts | Treatment delivery control system and method of operation thereof |
US8373145B2 (en) | 2008-05-22 | 2013-02-12 | Vladimir Balakin | Charged particle cancer therapy system magnet control method and apparatus |
US8975600B2 (en) | 2008-05-22 | 2015-03-10 | Vladimir Balakin | Treatment delivery control system and method of operation thereof |
US8089054B2 (en) * | 2008-05-22 | 2012-01-03 | Vladimir Balakin | Charged particle beam acceleration and extraction method and apparatus used in conjunction with a charged particle cancer therapy system |
US8129699B2 (en) | 2008-05-22 | 2012-03-06 | Vladimir Balakin | Multi-field charged particle cancer therapy method and apparatus coordinated with patient respiration |
US8710462B2 (en) | 2008-05-22 | 2014-04-29 | Vladimir Balakin | Charged particle cancer therapy beam path control method and apparatus |
US8569717B2 (en) | 2008-05-22 | 2013-10-29 | Vladimir Balakin | Intensity modulated three-dimensional radiation scanning method and apparatus |
US8093564B2 (en) | 2008-05-22 | 2012-01-10 | Vladimir Balakin | Ion beam focusing lens method and apparatus used in conjunction with a charged particle cancer therapy system |
US9056199B2 (en) | 2008-05-22 | 2015-06-16 | Vladimir Balakin | Charged particle treatment, rapid patient positioning apparatus and method of use thereof |
US8144832B2 (en) | 2008-05-22 | 2012-03-27 | Vladimir Balakin | X-ray tomography method and apparatus used in conjunction with a charged particle cancer therapy system |
US9177751B2 (en) | 2008-05-22 | 2015-11-03 | Vladimir Balakin | Carbon ion beam injector apparatus and method of use thereof |
US8178859B2 (en) | 2008-05-22 | 2012-05-15 | Vladimir Balakin | Proton beam positioning verification method and apparatus used in conjunction with a charged particle cancer therapy system |
US10029122B2 (en) | 2008-05-22 | 2018-07-24 | Susan L. Michaud | Charged particle—patient motion control system apparatus and method of use thereof |
US9782140B2 (en) | 2008-05-22 | 2017-10-10 | Susan L. Michaud | Hybrid charged particle / X-ray-imaging / treatment apparatus and method of use thereof |
US10143854B2 (en) | 2008-05-22 | 2018-12-04 | Susan L. Michaud | Dual rotation charged particle imaging / treatment apparatus and method of use thereof |
EP2283713B1 (en) | 2008-05-22 | 2018-03-28 | Vladimir Yegorovich Balakin | Multi-axis charged particle cancer therapy apparatus |
US9910166B2 (en) | 2008-05-22 | 2018-03-06 | Stephen L. Spotts | Redundant charged particle state determination apparatus and method of use thereof |
US7943913B2 (en) * | 2008-05-22 | 2011-05-17 | Vladimir Balakin | Negative ion source method and apparatus used in conjunction with a charged particle cancer therapy system |
US8598543B2 (en) | 2008-05-22 | 2013-12-03 | Vladimir Balakin | Multi-axis/multi-field charged particle cancer therapy method and apparatus |
US8198607B2 (en) | 2008-05-22 | 2012-06-12 | Vladimir Balakin | Tandem accelerator method and apparatus used in conjunction with a charged particle cancer therapy system |
US9044600B2 (en) | 2008-05-22 | 2015-06-02 | Vladimir Balakin | Proton tomography apparatus and method of operation therefor |
US9168392B1 (en) | 2008-05-22 | 2015-10-27 | Vladimir Balakin | Charged particle cancer therapy system X-ray apparatus and method of use thereof |
US9579525B2 (en) | 2008-05-22 | 2017-02-28 | Vladimir Balakin | Multi-axis charged particle cancer therapy method and apparatus |
US8129694B2 (en) | 2008-05-22 | 2012-03-06 | Vladimir Balakin | Negative ion beam source vacuum method and apparatus used in conjunction with a charged particle cancer therapy system |
US9737272B2 (en) | 2008-05-22 | 2017-08-22 | W. Davis Lee | Charged particle cancer therapy beam state determination apparatus and method of use thereof |
US8373143B2 (en) | 2008-05-22 | 2013-02-12 | Vladimir Balakin | Patient immobilization and repositioning method and apparatus used in conjunction with charged particle cancer therapy |
US8368038B2 (en) | 2008-05-22 | 2013-02-05 | Vladimir Balakin | Method and apparatus for intensity control of a charged particle beam extracted from a synchrotron |
US8373146B2 (en) | 2008-05-22 | 2013-02-12 | Vladimir Balakin | RF accelerator method and apparatus used in conjunction with a charged particle cancer therapy system |
US8045679B2 (en) * | 2008-05-22 | 2011-10-25 | Vladimir Balakin | Charged particle cancer therapy X-ray method and apparatus |
MX2010012714A (es) | 2008-05-22 | 2011-06-01 | Vladimir Yegorovich Balakin | Metodo y aparato de control de la trayectoria de haces para la terapia contra el cancer mediante particulas cargadas. |
US9744380B2 (en) | 2008-05-22 | 2017-08-29 | Susan L. Michaud | Patient specific beam control assembly of a cancer therapy apparatus and method of use thereof |
US9682254B2 (en) | 2008-05-22 | 2017-06-20 | Vladimir Balakin | Cancer surface searing apparatus and method of use thereof |
US9974978B2 (en) | 2008-05-22 | 2018-05-22 | W. Davis Lee | Scintillation array apparatus and method of use thereof |
US8896239B2 (en) | 2008-05-22 | 2014-11-25 | Vladimir Yegorovich Balakin | Charged particle beam injection method and apparatus used in conjunction with a charged particle cancer therapy system |
US9737733B2 (en) | 2008-05-22 | 2017-08-22 | W. Davis Lee | Charged particle state determination apparatus and method of use thereof |
US7940894B2 (en) * | 2008-05-22 | 2011-05-10 | Vladimir Balakin | Elongated lifetime X-ray method and apparatus used in conjunction with a charged particle cancer therapy system |
US10070831B2 (en) | 2008-05-22 | 2018-09-11 | James P. Bennett | Integrated cancer therapy—imaging apparatus and method of use thereof |
US9616252B2 (en) | 2008-05-22 | 2017-04-11 | Vladimir Balakin | Multi-field cancer therapy apparatus and method of use thereof |
US8642978B2 (en) | 2008-05-22 | 2014-02-04 | Vladimir Balakin | Charged particle cancer therapy dose distribution method and apparatus |
US10684380B2 (en) | 2008-05-22 | 2020-06-16 | W. Davis Lee | Multiple scintillation detector array imaging apparatus and method of use thereof |
US8969834B2 (en) | 2008-05-22 | 2015-03-03 | Vladimir Balakin | Charged particle therapy patient constraint apparatus and method of use thereof |
US9981147B2 (en) | 2008-05-22 | 2018-05-29 | W. Davis Lee | Ion beam extraction apparatus and method of use thereof |
US20090314960A1 (en) * | 2008-05-22 | 2009-12-24 | Vladimir Balakin | Patient positioning method and apparatus used in conjunction with a charged particle cancer therapy system |
US9737734B2 (en) | 2008-05-22 | 2017-08-22 | Susan L. Michaud | Charged particle translation slide control apparatus and method of use thereof |
US8288742B2 (en) | 2008-05-22 | 2012-10-16 | Vladimir Balakin | Charged particle cancer therapy patient positioning method and apparatus |
US8309941B2 (en) | 2008-05-22 | 2012-11-13 | Vladimir Balakin | Charged particle cancer therapy and patient breath monitoring method and apparatus |
US7953205B2 (en) * | 2008-05-22 | 2011-05-31 | Vladimir Balakin | Synchronized X-ray / breathing method and apparatus used in conjunction with a charged particle cancer therapy system |
US8188688B2 (en) | 2008-05-22 | 2012-05-29 | Vladimir Balakin | Magnetic field control method and apparatus used in conjunction with a charged particle cancer therapy system |
US8519365B2 (en) | 2008-05-22 | 2013-08-27 | Vladimir Balakin | Charged particle cancer therapy imaging method and apparatus |
US8624528B2 (en) | 2008-05-22 | 2014-01-07 | Vladimir Balakin | Method and apparatus coordinating synchrotron acceleration periods with patient respiration periods |
US10548551B2 (en) | 2008-05-22 | 2020-02-04 | W. Davis Lee | Depth resolved scintillation detector array imaging apparatus and method of use thereof |
WO2009142546A2 (en) * | 2008-05-22 | 2009-11-26 | Vladimir Yegorovich Balakin | Multi-field charged particle cancer therapy method and apparatus |
US8487278B2 (en) | 2008-05-22 | 2013-07-16 | Vladimir Yegorovich Balakin | X-ray method and apparatus used in conjunction with a charged particle cancer therapy system |
US8374314B2 (en) | 2008-05-22 | 2013-02-12 | Vladimir Balakin | Synchronized X-ray / breathing method and apparatus used in conjunction with a charged particle cancer therapy system |
US8688197B2 (en) * | 2008-05-22 | 2014-04-01 | Vladimir Yegorovich Balakin | Charged particle cancer therapy patient positioning method and apparatus |
US9855444B2 (en) | 2008-05-22 | 2018-01-02 | Scott Penfold | X-ray detector for proton transit detection apparatus and method of use thereof |
US9058910B2 (en) | 2008-05-22 | 2015-06-16 | Vladimir Yegorovich Balakin | Charged particle beam acceleration method and apparatus as part of a charged particle cancer therapy system |
US8637833B2 (en) | 2008-05-22 | 2014-01-28 | Vladimir Balakin | Synchrotron power supply apparatus and method of use thereof |
US8399866B2 (en) | 2008-05-22 | 2013-03-19 | Vladimir Balakin | Charged particle extraction apparatus and method of use thereof |
US8378311B2 (en) | 2008-05-22 | 2013-02-19 | Vladimir Balakin | Synchrotron power cycling apparatus and method of use thereof |
US9937362B2 (en) | 2008-05-22 | 2018-04-10 | W. Davis Lee | Dynamic energy control of a charged particle imaging/treatment apparatus and method of use thereof |
US8841866B2 (en) | 2008-05-22 | 2014-09-23 | Vladimir Yegorovich Balakin | Charged particle beam extraction method and apparatus used in conjunction with a charged particle cancer therapy system |
US10092776B2 (en) | 2008-05-22 | 2018-10-09 | Susan L. Michaud | Integrated translation/rotation charged particle imaging/treatment apparatus and method of use thereof |
US20100002842A1 (en) * | 2008-07-01 | 2010-01-07 | Bruker Axs, Inc. | Cathode assembly for rapid electron source replacement in a rotating anode x-ray generator |
US8625739B2 (en) * | 2008-07-14 | 2014-01-07 | Vladimir Balakin | Charged particle cancer therapy x-ray method and apparatus |
US8627822B2 (en) | 2008-07-14 | 2014-01-14 | Vladimir Balakin | Semi-vertical positioning method and apparatus used in conjunction with a charged particle cancer therapy system |
US8229072B2 (en) | 2008-07-14 | 2012-07-24 | Vladimir Balakin | Elongated lifetime X-ray method and apparatus used in conjunction with a charged particle cancer therapy system |
GB0816823D0 (en) | 2008-09-13 | 2008-10-22 | Cxr Ltd | X-ray tubes |
GB0901338D0 (en) | 2009-01-28 | 2009-03-11 | Cxr Ltd | X-Ray tube electron sources |
EP2403599A4 (en) | 2009-03-04 | 2017-11-22 | Zakrytoe Aktsionernoe Obshchestvo Protom | Multi-field charged particle cancer therapy method and apparatus |
US8401151B2 (en) * | 2009-12-16 | 2013-03-19 | General Electric Company | X-ray tube for microsecond X-ray intensity switching |
US8385506B2 (en) * | 2010-02-02 | 2013-02-26 | General Electric Company | X-ray cathode and method of manufacture thereof |
US8938050B2 (en) | 2010-04-14 | 2015-01-20 | General Electric Company | Low bias mA modulation for X-ray tubes |
US10556126B2 (en) | 2010-04-16 | 2020-02-11 | Mark R. Amato | Automated radiation treatment plan development apparatus and method of use thereof |
US10518109B2 (en) | 2010-04-16 | 2019-12-31 | Jillian Reno | Transformable charged particle beam path cancer therapy apparatus and method of use thereof |
US10376717B2 (en) | 2010-04-16 | 2019-08-13 | James P. Bennett | Intervening object compensating automated radiation treatment plan development apparatus and method of use thereof |
US11648420B2 (en) | 2010-04-16 | 2023-05-16 | Vladimir Balakin | Imaging assisted integrated tomography—cancer treatment apparatus and method of use thereof |
US10179250B2 (en) | 2010-04-16 | 2019-01-15 | Nick Ruebel | Auto-updated and implemented radiation treatment plan apparatus and method of use thereof |
US10086214B2 (en) | 2010-04-16 | 2018-10-02 | Vladimir Balakin | Integrated tomography—cancer treatment apparatus and method of use thereof |
US10751551B2 (en) | 2010-04-16 | 2020-08-25 | James P. Bennett | Integrated imaging-cancer treatment apparatus and method of use thereof |
US10625097B2 (en) | 2010-04-16 | 2020-04-21 | Jillian Reno | Semi-automated cancer therapy treatment apparatus and method of use thereof |
US10188877B2 (en) | 2010-04-16 | 2019-01-29 | W. Davis Lee | Fiducial marker/cancer imaging and treatment apparatus and method of use thereof |
US10638988B2 (en) | 2010-04-16 | 2020-05-05 | Scott Penfold | Simultaneous/single patient position X-ray and proton imaging apparatus and method of use thereof |
US10349906B2 (en) | 2010-04-16 | 2019-07-16 | James P. Bennett | Multiplexed proton tomography imaging apparatus and method of use thereof |
US10555710B2 (en) | 2010-04-16 | 2020-02-11 | James P. Bennett | Simultaneous multi-axes imaging apparatus and method of use thereof |
US10589128B2 (en) | 2010-04-16 | 2020-03-17 | Susan L. Michaud | Treatment beam path verification in a cancer therapy apparatus and method of use thereof |
US9737731B2 (en) | 2010-04-16 | 2017-08-22 | Vladimir Balakin | Synchrotron energy control apparatus and method of use thereof |
US8963112B1 (en) | 2011-05-25 | 2015-02-24 | Vladimir Balakin | Charged particle cancer therapy patient positioning method and apparatus |
US8933651B2 (en) | 2012-11-16 | 2015-01-13 | Vladimir Balakin | Charged particle accelerator magnet apparatus and method of use thereof |
US9484179B2 (en) | 2012-12-18 | 2016-11-01 | General Electric Company | X-ray tube with adjustable intensity profile |
US9224572B2 (en) | 2012-12-18 | 2015-12-29 | General Electric Company | X-ray tube with adjustable electron beam |
US9048064B2 (en) * | 2013-03-05 | 2015-06-02 | Varian Medical Systems, Inc. | Cathode assembly for a long throw length X-ray tube |
DE102013214393A1 (de) * | 2013-07-23 | 2014-11-20 | Siemens Aktiengesellschaft | Röntgenaufnahmesystem zur differentiellen Phasenkontrast-Bildgebung eines Untersuchungsobjekts mit Phase-Stepping |
US9508523B2 (en) * | 2014-03-15 | 2016-11-29 | Stellarray, Inc. | Forward flux channel X-ray source |
MX2017009342A (es) | 2015-01-20 | 2017-11-17 | American Science & Eng Inc | Punto focal dinamicamente ajustable. |
US9907981B2 (en) | 2016-03-07 | 2018-03-06 | Susan L. Michaud | Charged particle translation slide control apparatus and method of use thereof |
US10037863B2 (en) | 2016-05-27 | 2018-07-31 | Mark R. Amato | Continuous ion beam kinetic energy dissipater apparatus and method of use thereof |
KR101966794B1 (ko) * | 2017-07-12 | 2019-08-27 | (주)선재하이테크 | 전자 집속 개선용 엑스선관 |
US20230197397A1 (en) * | 2021-12-21 | 2023-06-22 | GE Precision Healthcare LLC | X-ray tube cathode focusing element |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2633774B1 (fr) * | 1988-07-01 | 1991-02-08 | Gen Electric Cgr | Tube a rayons x a foyer variable auto-adapte a la charge |
FR2644931A1 (fr) * | 1989-03-24 | 1990-09-28 | Gen Electric Cgr | Tube a rayons x a balayage avec plaques de deflexion |
JPH0320766U (ja) * | 1989-07-11 | 1991-02-28 | ||
FR2650703B1 (fr) * | 1989-08-07 | 1991-10-11 | Gen Electric Cgr | Cathode de tube a rayons x et tube ainsi obtenu |
DE19510048C2 (de) * | 1995-03-20 | 1998-05-14 | Siemens Ag | Röntgenröhre |
US5637953A (en) | 1996-01-22 | 1997-06-10 | American International Technologies, Inc. | Cathode assembly for a line focus electron beam device |
US5633907A (en) | 1996-03-21 | 1997-05-27 | General Electric Company | X-ray tube electron beam formation and focusing |
US5907595A (en) | 1997-08-18 | 1999-05-25 | General Electric Company | Emitter-cup cathode for high-emission x-ray tube |
US6115453A (en) * | 1997-08-20 | 2000-09-05 | Siemens Aktiengesellschaft | Direct-Heated flats emitter for emitting an electron beam |
US6236713B1 (en) * | 1998-10-27 | 2001-05-22 | Litton Systems, Inc. | X-ray tube providing variable imaging spot size |
US6438207B1 (en) * | 1999-09-14 | 2002-08-20 | Varian Medical Systems, Inc. | X-ray tube having improved focal spot control |
DE10025807A1 (de) * | 2000-05-24 | 2001-11-29 | Philips Corp Intellectual Pty | Röntgenröhre mit Flachkathode |
-
2002
- 2002-07-30 US US10/064,606 patent/US6785359B2/en not_active Expired - Lifetime
-
2003
- 2003-07-29 JP JP2003281406A patent/JP4810056B2/ja not_active Expired - Lifetime
- 2003-07-29 DE DE10334606A patent/DE10334606A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE10334606A1 (de) | 2004-02-26 |
US20040022361A1 (en) | 2004-02-05 |
JP2004063471A (ja) | 2004-02-26 |
US6785359B2 (en) | 2004-08-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4810056B2 (ja) | 高放出x線管用のカソード | |
US5907595A (en) | Emitter-cup cathode for high-emission x-ray tube | |
JP5236393B2 (ja) | 三点偏向を用いた焦点スポット温度の低減 | |
US8175222B2 (en) | Electron emitter and method of making same | |
JPH103872A (ja) | X線管用の電子を集束させるカソード、電子ビームを集束させるカソード・アセンブリ、及び電子ビームの焦点の寸法を変化させる方法 | |
US10008359B2 (en) | X-ray tube having magnetic quadrupoles for focusing and magnetic dipoles for steering | |
US4336476A (en) | Grooved X-ray generator | |
JP6502514B2 (ja) | 電子ビームの操縦及び集束用の2元的グリッド及び2元的フィラメントの陰極を有するx線管 | |
US3751701A (en) | Convergent flow hollow beam x-ray gun with high average power | |
WO2020261339A1 (ja) | X線発生管、x線発生装置およびx線撮像装置 | |
US20030002628A1 (en) | Method and system for generating an electron beam in x-ray generating devices | |
US7327829B2 (en) | Cathode assembly | |
JP2002528878A (ja) | 可変結像スポットサイズを提供するx線管 | |
US10121629B2 (en) | Angled flat emitter for high power cathode with electrostatic emission control | |
US7062017B1 (en) | Integral cathode | |
JPS6122545A (ja) | X線管 | |
US10032595B2 (en) | Robust electrode with septum rod for biased X-ray tube cathode | |
US9928985B2 (en) | Robust emitter for minimizing damage from ion bombardment | |
US10468222B2 (en) | Angled flat emitter for high power cathode with electrostatic emission control | |
EP3226277A1 (en) | Angled flat emitter for high power cathode with electrostatic emission control | |
US20200211807A1 (en) | X-ray Tube | |
US20190189384A1 (en) | Bipolar grid for controlling an electron beam in an x-ray tube | |
JP6202317B2 (ja) | X線発生装置及びx線照射装置 | |
JPS63207038A (ja) | X線管装置 | |
JP2000200555A (ja) | 電子銃並びに電界放射陰極電子銃、及びマイクロ波管 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060726 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060726 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090526 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090713 |
|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20090713 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20090713 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090825 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20091002 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20091027 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100222 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100324 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20100330 |
|
A912 | Re-examination (zenchi) completed and case transferred to appeal board |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20100806 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20110322 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20110325 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20110822 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140826 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 4810056 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |