DE69221280D1 - Röntgenröhre mit kapazitiv gekoppelter Glühwendelansteuerung - Google Patents
Röntgenröhre mit kapazitiv gekoppelter GlühwendelansteuerungInfo
- Publication number
- DE69221280D1 DE69221280D1 DE69221280T DE69221280T DE69221280D1 DE 69221280 D1 DE69221280 D1 DE 69221280D1 DE 69221280 T DE69221280 T DE 69221280T DE 69221280 T DE69221280 T DE 69221280T DE 69221280 D1 DE69221280 D1 DE 69221280D1
- Authority
- DE
- Germany
- Prior art keywords
- ray tube
- capacitively coupled
- filament control
- coupled filament
- control
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/24—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof
-
- 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
- H01J35/064—Details of the emitter, e.g. material or structure
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/10—Power supply arrangements for feeding the X-ray tube
- H05G1/14—Power supply arrangements for feeding the X-ray tube with single-phase low-frequency ac also when a rectifer element is in series with the X-ray tube
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/10—Power supply arrangements for feeding the X-ray tube
- H05G1/20—Power supply arrangements for feeding the X-ray tube with high-frequency ac; with pulse trains
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/26—Measuring, controlling or protecting
- H05G1/30—Controlling
- H05G1/34—Anode current, heater current or heater voltage of X-ray tube
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/26—Measuring, controlling or protecting
- H05G1/30—Controlling
- H05G1/52—Target size or shape; Direction of electron beam, e.g. in tubes with one anode and more than one cathode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2235/00—X-ray tubes
- H01J2235/16—Vessels
- H01J2235/161—Non-stationary vessels
- H01J2235/162—Rotation
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- X-Ray Techniques (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/817,295 US5200985A (en) | 1992-01-06 | 1992-01-06 | X-ray tube with capacitively coupled filament drive |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69221280D1 true DE69221280D1 (de) | 1997-09-04 |
DE69221280T2 DE69221280T2 (de) | 1997-12-04 |
Family
ID=25222756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69221280T Expired - Fee Related DE69221280T2 (de) | 1992-01-06 | 1992-12-16 | Röntgenröhre mit kapazitiv gekoppelter Glühwendelansteuerung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5200985A (de) |
EP (1) | EP0550981B1 (de) |
JP (1) | JP3517664B2 (de) |
DE (1) | DE69221280T2 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5581591A (en) * | 1992-01-06 | 1996-12-03 | Picker International, Inc. | Focal spot motion control for rotating housing and anode/stationary cathode X-ray tubes |
US5274690A (en) * | 1992-01-06 | 1993-12-28 | Picker International, Inc. | Rotating housing and anode/stationary cathode x-ray tube with magnetic susceptor for holding the cathode stationary |
US5305363A (en) * | 1992-01-06 | 1994-04-19 | Picker International, Inc. | Computerized tomographic scanner having a toroidal x-ray tube with a stationary annular anode and a rotating cathode assembly |
US5268955A (en) * | 1992-01-06 | 1993-12-07 | Picker International, Inc. | Ring tube x-ray source |
US5475729A (en) * | 1994-04-08 | 1995-12-12 | Picker International, Inc. | X-ray reference channel and x-ray control circuit for ring tube CT scanners |
US5493599A (en) * | 1992-04-03 | 1996-02-20 | Picker International, Inc. | Off-focal radiation limiting precollimator and adjustable ring collimator for x-ray CT scanners |
DE4230880A1 (de) * | 1992-09-16 | 1994-03-17 | Philips Patentverwaltung | Röntgengenerator zur Speisung einer Röntgenröhre mit wenigstens zwei Elektronenquellen |
US5550890A (en) * | 1995-06-06 | 1996-08-27 | Anderson; Weston A. | Magnetically supported cathode X-ray source |
DE19542439C1 (de) * | 1995-11-14 | 1997-04-03 | Siemens Ag | Kathodenanordnung für eine Elektronenröhre sowie derartige Elektronenröhre |
US6144720A (en) * | 1998-08-28 | 2000-11-07 | Picker International, Inc. | Iron oxide coating for x-ray tube rotors |
US6256364B1 (en) | 1998-11-24 | 2001-07-03 | General Electric Company | Methods and apparatus for correcting for x-ray beam movement |
US6229870B1 (en) | 1998-11-25 | 2001-05-08 | Picker International, Inc. | Multiple fan beam computed tomography system |
US6125167A (en) * | 1998-11-25 | 2000-09-26 | Picker International, Inc. | Rotating anode x-ray tube with multiple simultaneously emitting focal spots |
US7343002B1 (en) * | 2003-02-05 | 2008-03-11 | Varian Medical Systems Technologies, Inc. | Bearing assembly |
CN102723251B (zh) * | 2012-06-28 | 2015-10-28 | 珠海瑞能真空电子有限公司 | 外壳旋转ct-x射线管 |
EP3872835A1 (de) * | 2020-02-28 | 2021-09-01 | Siemens Healthcare GmbH | Rotierbare röntgenröhre |
EP3933881A1 (de) | 2020-06-30 | 2022-01-05 | VEC Imaging GmbH & Co. KG | Röntgenquelle mit mehreren gittern |
CN115209599A (zh) * | 2021-04-14 | 2022-10-18 | 上海超群检测科技股份有限公司 | 一种射线源多泵自动循环互备装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2111412A (en) * | 1928-12-08 | 1938-03-15 | Gen Electric | X-ray apparatus |
JPS5318318B2 (de) * | 1972-12-27 | 1978-06-14 | ||
US4045672A (en) * | 1975-09-11 | 1977-08-30 | Nihon Denshi Kabushiki Kaisha | Apparatus for tomography comprising a pin hole for forming a microbeam of x-rays |
GB1604252A (en) * | 1977-06-03 | 1981-12-09 | Emi Ltd | X-ray generating arrangements |
DK290077A (da) * | 1977-06-29 | 1978-12-30 | Scadera As | Fremgangsmaade til bestemmelse af elektrotaetheden i et delvolumen |
FR2415876A1 (fr) * | 1978-01-27 | 1979-08-24 | Radiologie Cie Gle | Tube a rayons x, notamment pour tomodensitometre |
DE3043046A1 (de) * | 1980-11-14 | 1982-07-15 | Siemens AG, 1000 Berlin und 8000 München | Drehanoden-roentgenroehre |
US4521900A (en) * | 1982-10-14 | 1985-06-04 | Imatron Associates | Electron beam control assembly and method for a scanning electron beam computed tomography scanner |
JP2539193B2 (ja) * | 1984-12-20 | 1996-10-02 | バリアン・アソシエイツ・インコーポレイテッド | 高強度x線源 |
US4869257A (en) * | 1985-06-03 | 1989-09-26 | Picker International, Inc. | Ultrasonic mechanical sector scanning transducer probe assembly |
DE3540303A1 (de) * | 1985-11-13 | 1987-05-14 | Siemens Ag | Drehanoden-roentgenroehre |
DE3785728D1 (de) * | 1986-11-25 | 1993-06-09 | Siemens Ag | Computertomograph. |
US4878235A (en) * | 1988-02-25 | 1989-10-31 | Varian Associates, Inc. | High intensity x-ray source using bellows |
IL88904A0 (en) * | 1989-01-06 | 1989-08-15 | Yehuda Elyada | X-ray tube apparatus |
-
1992
- 1992-01-06 US US07/817,295 patent/US5200985A/en not_active Expired - Lifetime
- 1992-12-16 EP EP92311470A patent/EP0550981B1/de not_active Expired - Lifetime
- 1992-12-16 DE DE69221280T patent/DE69221280T2/de not_active Expired - Fee Related
-
1993
- 1993-01-05 JP JP01596493A patent/JP3517664B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69221280T2 (de) | 1997-12-04 |
EP0550981A1 (de) | 1993-07-14 |
EP0550981B1 (de) | 1997-07-30 |
US5200985A (en) | 1993-04-06 |
JPH0684488A (ja) | 1994-03-25 |
JP3517664B2 (ja) | 2004-04-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Free format text: PATENTANWAELTE REICHEL UND REICHEL, 60322 FRANKFURT |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: PHILIPS MEDICAL SYSTEMS (CLEVELAND), INC., CLEVELA |
|
8339 | Ceased/non-payment of the annual fee |