DE69221280D1 - Röntgenröhre mit kapazitiv gekoppelter Glühwendelansteuerung - Google Patents

Röntgenröhre mit kapazitiv gekoppelter Glühwendelansteuerung

Info

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
Application number
DE69221280T
Other languages
English (en)
Other versions
DE69221280T2 (de
Inventor
Lester Miller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Nuclear Medicine Inc
Original Assignee
Picker International Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Picker International Inc filed Critical Picker International Inc
Publication of DE69221280D1 publication Critical patent/DE69221280D1/de
Application granted granted Critical
Publication of DE69221280T2 publication Critical patent/DE69221280T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
DE69221280T 1992-01-06 1992-12-16 Röntgenröhre mit kapazitiv gekoppelter Glühwendelansteuerung Expired - Fee Related DE69221280T2 (de)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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
US6125167A (en) * 1998-11-25 2000-09-26 Picker International, Inc. Rotating anode x-ray tube with multiple simultaneously emitting focal spots
US6229870B1 (en) 1998-11-25 2001-05-08 Picker International, Inc. Multiple fan beam computed tomography system
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)

* Cited by examiner, † Cited by third party
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
EP0187020B1 (de) * 1984-12-20 1993-02-10 Varian Associates, Inc. Röntgenstrahlenquelle mit hoher Intensität
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

Also Published As

Publication number Publication date
EP0550981B1 (de) 1997-07-30
JP3517664B2 (ja) 2004-04-12
US5200985A (en) 1993-04-06
JPH0684488A (ja) 1994-03-25
EP0550981A1 (de) 1993-07-14
DE69221280T2 (de) 1997-12-04

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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