DE102004037367A1 - System zum Einstellen der Position eines Brennflecks für eine Bildgebungsröhre - Google Patents
System zum Einstellen der Position eines Brennflecks für eine Bildgebungsröhre Download PDFInfo
- Publication number
- DE102004037367A1 DE102004037367A1 DE102004037367A DE102004037367A DE102004037367A1 DE 102004037367 A1 DE102004037367 A1 DE 102004037367A1 DE 102004037367 A DE102004037367 A DE 102004037367A DE 102004037367 A DE102004037367 A DE 102004037367A DE 102004037367 A1 DE102004037367 A1 DE 102004037367A1
- Authority
- DE
- Germany
- Prior art keywords
- anode
- cathode
- emitter
- focal spot
- electron beam
- 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.)
- Ceased
Links
- 238000003384 imaging method Methods 0.000 title claims abstract description 26
- 238000010894 electron beam technology Methods 0.000 claims abstract description 38
- 230000005855 radiation Effects 0.000 claims abstract description 23
- 239000000523 sample Substances 0.000 claims abstract description 20
- 230000005670 electromagnetic radiation Effects 0.000 claims abstract description 19
- 230000004044 response Effects 0.000 claims abstract description 8
- 238000007493 shaping process Methods 0.000 claims abstract description 5
- 239000012212 insulator Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 27
- 238000002591 computed tomography Methods 0.000 description 24
- 238000005070 sampling Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 4
- 238000013170 computed tomography imaging Methods 0.000 description 4
- 238000005305 interferometry Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 210000001061 forehead Anatomy 0.000 description 3
- 239000005350 fused silica glass Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012633 nuclear imaging Methods 0.000 description 1
- 239000000382 optic material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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
- H01J35/147—Spot size control
-
- 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
Landscapes
- Apparatus For Radiation Diagnosis (AREA)
- X-Ray Techniques (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/604605 | 2003-08-04 | ||
| US10/604,605 US6968039B2 (en) | 2003-08-04 | 2003-08-04 | Focal spot position adjustment system for an imaging tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102004037367A1 true DE102004037367A1 (de) | 2005-03-03 |
Family
ID=34115653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102004037367A Ceased DE102004037367A1 (de) | 2003-08-04 | 2004-07-30 | System zum Einstellen der Position eines Brennflecks für eine Bildgebungsröhre |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6968039B2 (https=) |
| JP (1) | JP4831455B2 (https=) |
| DE (1) | DE102004037367A1 (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007129249A3 (en) * | 2006-05-08 | 2008-01-24 | Philips Intellectual Property | Rotating anode x-ray tube with a saddle shaped anode |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7257194B2 (en) * | 2004-02-09 | 2007-08-14 | Varian Medical Systems Technologies, Inc. | Cathode head with focal spot control |
| FR2889352A1 (fr) * | 2005-07-29 | 2007-02-02 | Commissariat Energie Atomique | Dispositif et procede pour asservir en position le lieu d'emission d'une source de rayons x |
| US7657002B2 (en) * | 2006-01-31 | 2010-02-02 | Varian Medical Systems, Inc. | Cathode head having filament protection features |
| US7447297B2 (en) * | 2006-08-04 | 2008-11-04 | General Electric Company | X-ray source focal spot deflection methods and apparatus |
| US20080095317A1 (en) * | 2006-10-17 | 2008-04-24 | General Electric Company | Method and apparatus for focusing and deflecting the electron beam of an x-ray device |
| CN101536134B (zh) * | 2006-11-10 | 2014-03-12 | 皇家飞利浦电子股份有限公司 | 具有多电子束操作单元的多焦斑x射线管 |
| CN101573776A (zh) * | 2006-12-04 | 2009-11-04 | 皇家飞利浦电子股份有限公司 | 具有多个电子源和公共电子偏转单元的x射线管 |
| US7852979B2 (en) * | 2007-04-05 | 2010-12-14 | General Electric Company | Dual-focus X-ray tube for resolution enhancement and energy sensitive CT |
| EP1983546A1 (en) * | 2007-04-20 | 2008-10-22 | PANalytical B.V. | X-ray cathode and tube |
| US7496180B1 (en) | 2007-08-29 | 2009-02-24 | General Electric Company | Focal spot temperature reduction using three-point deflection |
| JP5426089B2 (ja) * | 2007-12-25 | 2014-02-26 | 株式会社東芝 | Ｘ線管及びｘ線ｃｔ装置 |
| DE102009023183B4 (de) * | 2009-05-29 | 2015-05-28 | Siemens Aktiengesellschaft | Strahlungsquelle für eine strahlungsbasierte Bildaufnahmeeinrichtung, strahlungsbasierte Bildaufnahmeeinrichtung und Verfahren zur Ermittlung eines asymmetrischen Leistungseintragsprofils eines Brennflecks einer Strahlungsquelle |
| JP5535532B2 (ja) * | 2009-06-26 | 2014-07-02 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | Ｘ線ｃｔ装置 |
| FR2947691B1 (fr) * | 2009-07-06 | 2016-12-16 | Gen Electric | Procede pour le controle de l'emission d'un faisceau d'electrons dans une cathode, cathode, tube et systeme d'imagerie correspondants |
| JP5675808B2 (ja) * | 2009-08-13 | 2015-02-25 | コーニンクレッカ フィリップス エヌ ヴェ | 独立したｘ及びｚ方向の動的フォーカルスポット偏向を持つＸ線管 |
| DE102009037688B4 (de) * | 2009-08-17 | 2011-06-16 | Siemens Aktiengesellschaft | Vorrichtung und Verfahren zur Steuerung eines Elektronenstrahls für die Erzeugung von Röntgenstrahlung sowie Röntgenröhre |
| JP5622371B2 (ja) * | 2009-08-28 | 2014-11-12 | 株式会社東芝 | Ｘ線管及びそれを用いたｘ線ｃｔ装置 |
| 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 |
| US9524845B2 (en) | 2012-01-18 | 2016-12-20 | Varian Medical Systems, Inc. | X-ray tube cathode with magnetic electron beam steering |
| EP2869327B1 (en) * | 2012-07-02 | 2023-10-25 | Canon Electron Tubes & Devices Co., Ltd. | X-ray tube |
| US8923484B2 (en) * | 2012-08-31 | 2014-12-30 | General Electric Company | Motion correction system and method for an x-ray tube |
| JP5716069B2 (ja) * | 2013-09-30 | 2015-05-13 | 株式会社東芝 | Ｘ線ｃｔ装置 |
| US9448327B2 (en) * | 2013-12-16 | 2016-09-20 | Schlumberger Technology Corporation | X-ray generator having multiple extractors with independently selectable potentials |
| JP6816921B2 (ja) | 2016-10-03 | 2021-01-20 | キヤノン電子管デバイス株式会社 | Ｘ線管 |
| CN106859687B (zh) * | 2017-04-26 | 2023-04-07 | 重庆明峰医疗设备有限公司 | 一种可精确调整位置的球管 |
| CN110664420B (zh) * | 2019-10-11 | 2023-04-07 | 上海联影医疗科技股份有限公司 | 焦点校正方法、装置、计算机设备和计算机可读存储介质 |
| US12046441B2 (en) * | 2021-12-21 | 2024-07-23 | GE Precision Healthcare LLC | X-ray tube cathode focusing element |
| USD1104265S1 (en) | 2021-12-21 | 2025-12-02 | GE Precision Healthcare LLC | Control electrode for an x-ray tube cathode |
| US12183536B2 (en) | 2021-12-21 | 2024-12-31 | GE Precision Healthcare LLC | X-ray cathode focusing element |
| USD1104264S1 (en) | 2021-12-21 | 2025-12-02 | GE Precision Healthcare LLC | Control electrode for an x-ray tube cathode |
| CN114690169B (zh) * | 2022-03-09 | 2024-05-24 | 中国科学院国家空间科学中心 | 一种利用主动电子束探测空间目标的装置及方法 |
| US12176099B2 (en) | 2022-03-31 | 2024-12-24 | GE Precision Healthcare LLC | Low-cost estimation and/or tracking of intra-scan focal-spot displacement |
| US12125662B2 (en) | 2022-04-01 | 2024-10-22 | GE Precision Healthcare LLC | Correction of intra-scan focal-spot displacement |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61153934A (ja) * | 1984-12-27 | 1986-07-12 | Toshiba Corp | 焦点位置可変形ｘ線管 |
| JPS61198536A (ja) * | 1985-02-26 | 1986-09-02 | Shimadzu Corp | 焦点寸法調節形ｘ線管 |
| DE3542127A1 (de) * | 1985-11-28 | 1987-06-04 | Siemens Ag | Roentgenstrahler |
| FR2644931A1 (fr) * | 1989-03-24 | 1990-09-28 | Gen Electric Cgr | Tube a rayons x a balayage avec plaques de deflexion |
| FR2667723B1 (fr) * | 1990-10-09 | 1992-11-27 | Gen Electric Cgr | Dispositif d'obtention et de commutation de hautes tensions de polarisation d'electrodes de tube a rayons x. |
| US5633907A (en) * | 1996-03-21 | 1997-05-27 | General Electric Company | X-ray tube electron beam formation and focusing |
| DE19832972A1 (de) * | 1998-07-22 | 2000-01-27 | Siemens Ag | Röntgenstrahler |
| 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 |
| JP2002238885A (ja) * | 2001-02-02 | 2002-08-27 | Ge Medical Systems Global Technology Co Llc | Ｘ線焦点位置制御方法及びそのプログラム並びにｘ線ｃｔ装置及びｘ線管 |
| US6839405B2 (en) * | 2002-05-31 | 2005-01-04 | Siemens Medical Solutions Usa, Inc. | System and method for electronic shaping of X-ray beams |
-
2003
- 2003-08-04 US US10/604,605 patent/US6968039B2/en not_active Expired - Fee Related
-
2004
- 2004-07-30 DE DE102004037367A patent/DE102004037367A1/de not_active Ceased
- 2004-08-03 JP JP2004226290A patent/JP4831455B2/ja not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007129249A3 (en) * | 2006-05-08 | 2008-01-24 | Philips Intellectual Property | Rotating anode x-ray tube with a saddle shaped anode |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4831455B2 (ja) | 2011-12-07 |
| JP2005056843A (ja) | 2005-03-03 |
| US6968039B2 (en) | 2005-11-22 |
| US20050029957A1 (en) | 2005-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R012 | Request for examination validly filed | ||
| R409 | Internal rectification of the legal status completed | ||
| R074 | Re-establishment allowed | ||
| R409 | Internal rectification of the legal status completed | ||
| R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20110802 |
|
| R012 | Request for examination validly filed |
Effective date: 20110628 |
|
| R016 | Response to examination communication | ||
| R002 | Refusal decision in examination/registration proceedings | ||
| R003 | Refusal decision now final |