DE69221281T2 - Röntgenröhre mit Schleifringlager - Google Patents

Röntgenröhre mit Schleifringlager

Info

Publication number
DE69221281T2
DE69221281T2 DE69221281T DE69221281T DE69221281T2 DE 69221281 T2 DE69221281 T2 DE 69221281T2 DE 69221281 T DE69221281 T DE 69221281T DE 69221281 T DE69221281 T DE 69221281T DE 69221281 T2 DE69221281 T2 DE 69221281T2
Authority
DE
Germany
Prior art keywords
ray tube
slip ring
ring bearing
bearing
slip
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
DE69221281T
Other languages
English (en)
Other versions
DE69221281D1 (de
Inventor
James E Burke
Salvatore G Perno
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
Application granted granted Critical
Publication of DE69221281D1 publication Critical patent/DE69221281D1/de
Publication of DE69221281T2 publication Critical patent/DE69221281T2/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
    • H01J35/16—Vessels; Containers; Shields associated therewith
    • H01J35/165—Vessels; Containers; Shields associated therewith joining connectors to the 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
    • 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
    • H05G1/66—Circuit arrangements for X-ray tubes with target movable relatively to the anode
    • 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
DE69221281T 1992-01-06 1992-12-16 Röntgenröhre mit Schleifringlager Expired - Fee Related DE69221281T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/817,294 US5241577A (en) 1992-01-06 1992-01-06 X-ray tube with bearing slip ring

Publications (2)

Publication Number Publication Date
DE69221281D1 DE69221281D1 (de) 1997-09-04
DE69221281T2 true DE69221281T2 (de) 1997-12-04

Family

ID=25222754

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69221281T Expired - Fee Related DE69221281T2 (de) 1992-01-06 1992-12-16 Röntgenröhre mit Schleifringlager

Country Status (4)

Country Link
US (1) US5241577A (de)
EP (1) EP0550982B1 (de)
JP (1) JP3455917B2 (de)
DE (1) DE69221281T2 (de)

Families Citing this family (15)

* 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
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
US5550890A (en) * 1995-06-06 1996-08-27 Anderson; Weston A. Magnetically supported cathode X-ray source
US5978448A (en) * 1998-01-21 1999-11-02 General Electric Company Bearing preload arrangement with linear bearing component for X-ray tube
US5995584A (en) * 1998-01-26 1999-11-30 General Electric Company X-ray tube having high-speed bearings
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
US6295338B1 (en) 1999-10-28 2001-09-25 Marconi Medical Systems, Inc. Oil cooled bearing assembly
US6445769B1 (en) 2000-10-25 2002-09-03 Koninklijke Philips Electronics N.V. Internal bearing cooling using forced air
DE102011007215A1 (de) * 2011-04-12 2012-10-18 Siemens Aktiengesellschaft Elektronenquelle zur Erzeugung eines Elektronenstrahls sowie Röntgenquelle zur Erzeugung von Röntgenstrahlung
EP3933881A1 (de) 2020-06-30 2022-01-05 VEC Imaging GmbH & Co. KG Röntgenquelle mit mehreren gittern

Family Cites Families (27)

* 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
US4068127A (en) * 1976-07-08 1978-01-10 The United States Of America As Represented By The Department Of Health, Education And Welfare X-ray generating apparatus comprising means for rotating the filament
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
US4521900A (en) * 1982-10-14 1985-06-04 Imatron Associates Electron beam control assembly and method for a scanning electron beam computed tomography scanner
US4521901A (en) * 1983-03-01 1985-06-04 Imatron Associates Scanning electron beam computed tomography scanner with ion aided focusing
US4535243A (en) * 1983-03-17 1985-08-13 Imatron Associates X-ray detector for high speed X-ray scanning system
US4531226A (en) * 1983-03-17 1985-07-23 Imatron Associates Multiple electron beam target for use in X-ray scanner
US4631741A (en) * 1984-04-05 1986-12-23 Imatron, Inc. Beam spot monitoring arrangement for use in a scanning electron beam computed tomography scanner and method
US4618970A (en) * 1984-04-05 1986-10-21 Imatron, Inc. Beam positioning arrangement for use in a scanning electron beam computed tomography scanner and method
US4625150A (en) * 1984-04-16 1986-11-25 Imatron, Inc. Electron beam control assembly for a scanning electron beam computed tomography scanner
US4644168A (en) * 1984-05-14 1987-02-17 Imatron Inc. Electron beam deflecting magnet assembly for a scanning electron beam computed tomography scanner
US4573179A (en) * 1984-05-29 1986-02-25 Imatron, Inc. Scanned projection radiography using high speed computed tomographic scanning system
US4672649A (en) * 1984-05-29 1987-06-09 Imatron, Inc. Three dimensional scanned projection radiography using high speed computed tomographic scanning system
US4736396A (en) * 1984-05-29 1988-04-05 Imatron, Inc. Tomosynthesis using high speed CT scanning system
US4610021A (en) * 1984-06-13 1986-09-02 Imatron, Inc. X-ray transmission scanning system having variable fan beam geometry
US4621213A (en) * 1984-07-02 1986-11-04 Imatron, Inc. Electron gun
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
US4944448A (en) * 1986-05-09 1990-07-31 Imatron, Inc. Composite electron beam target for use in X-ray imaging system and method of making same
EP0269927B1 (de) * 1986-11-25 1993-05-05 Siemens Aktiengesellschaft 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
DE4004013A1 (de) * 1990-02-09 1991-08-14 Siemens Ag Roentgen-drehroehre

Also Published As

Publication number Publication date
US5241577A (en) 1993-08-31
EP0550982B1 (de) 1997-07-30
EP0550982A1 (de) 1993-07-14
JP3455917B2 (ja) 2003-10-14
JPH05275036A (ja) 1993-10-22
DE69221281D1 (de) 1997-09-04

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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