ES2031546T3 - Tubo de rayos x. - Google Patents

Tubo de rayos x.

Info

Publication number
ES2031546T3
ES2031546T3 ES198888104375T ES88104375T ES2031546T3 ES 2031546 T3 ES2031546 T3 ES 2031546T3 ES 198888104375 T ES198888104375 T ES 198888104375T ES 88104375 T ES88104375 T ES 88104375T ES 2031546 T3 ES2031546 T3 ES 2031546T3
Authority
ES
Spain
Prior art keywords
ray tube
area
rendija
perfection
discovered
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
Application number
ES198888104375T
Other languages
English (en)
Inventor
James Joseph Dowd
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of ES2031546T3 publication Critical patent/ES2031546T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/06—Cathode assembly
    • H01J2235/068—Multi-cathode assembly

Landscapes

  • X-Ray Techniques (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

UN PERFECCIONAMIENTO DEL ELECTRODO DEL CATODO DEL TUBO DE RAYOS X ESTA DESCUBIERTO PARA UTILIZAR UN FRENTE FOCAL DE RENDIJA (65) TENIENDO UNA SEPARACION DEL AREA DEL CORTE TRANSVERSAL A FOCO DE UN HAZ ELECTRONICO (76) QUE SUMINISTRA UNA GRAN EMISION, PEQUEÑA AREA FOCAL MANCHADA (80).
ES198888104375T 1987-03-19 1988-03-18 Tubo de rayos x. Expired - Lifetime ES2031546T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/027,787 US4868842A (en) 1987-03-19 1987-03-19 Cathode cup improvement

Publications (1)

Publication Number Publication Date
ES2031546T3 true ES2031546T3 (es) 1992-12-16

Family

ID=21839788

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198888104375T Expired - Lifetime ES2031546T3 (es) 1987-03-19 1988-03-18 Tubo de rayos x.

Country Status (4)

Country Link
US (2) US4868842A (es)
EP (1) EP0283039B1 (es)
DE (1) DE3871829T2 (es)
ES (1) ES2031546T3 (es)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633773B1 (fr) * 1988-07-01 1991-02-08 Gen Electric Cgr Tube radiogene a auto-limitation du flux electronique par saturation
FR2658002B1 (fr) * 1990-02-02 1992-05-22 Gen Electric Cgr Cathode a deflexion en diedre pour tube a rayons x.
EP0553914A1 (en) * 1992-01-27 1993-08-04 Koninklijke Philips Electronics N.V. Variable-focus X-ray tube
US5303281A (en) * 1992-07-09 1994-04-12 Varian Associates, Inc. Mammography method and improved mammography X-ray tube
USH1467H (en) * 1993-11-16 1995-08-01 Shell Oil Company Detergent formulations containing a surface active composition containing a nonionic surfactant component and a secondary alkyl sulfate anionic surfactant component
DE19504305A1 (de) * 1995-02-09 1996-08-14 Siemens Ag Röntgenröhre
US5907595A (en) * 1997-08-18 1999-05-25 General Electric Company Emitter-cup cathode for high-emission x-ray tube
JP4250206B2 (ja) * 1998-03-16 2009-04-08 株式会社東芝 Ｘ線管
US6259193B1 (en) 1998-06-08 2001-07-10 General Electric Company Emissive filament and support structure
DE10025807A1 (de) * 2000-05-24 2001-11-29 Philips Corp Intellectual Pty Röntgenröhre mit Flachkathode
US7327829B2 (en) * 2004-04-20 2008-02-05 Varian Medical Systems Technologies, Inc. Cathode assembly
US7576481B2 (en) * 2005-06-30 2009-08-18 General Electric Co. High voltage stable cathode for x-ray tube
US9125572B2 (en) 2012-06-22 2015-09-08 University Of Utah Research Foundation Grated collimation system for computed tomography
DE102013225589B4 (de) * 2013-12-11 2015-10-08 Siemens Aktiengesellschaft Röntgenstrahler
US20150173692A1 (en) * 2013-12-20 2015-06-25 University Of Utah Research Foundation Computed tomography devices, systems, and methods
FR3073702A1 (fr) 2017-11-10 2019-05-17 General Electric Company Systemes permettant d'ameliorer le fonctionnement de generateurs de rayons x
USD1104265S1 (en) 2021-12-21 2025-12-02 GE Precision Healthcare LLC Control electrode for an x-ray tube cathode
USD1104264S1 (en) 2021-12-21 2025-12-02 GE Precision Healthcare LLC Control electrode for an x-ray tube cathode
US12046441B2 (en) * 2021-12-21 2024-07-23 GE Precision Healthcare LLC X-ray tube cathode focusing element
US12183536B2 (en) 2021-12-21 2024-12-31 GE Precision Healthcare LLC X-ray cathode focusing element

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2146900A (en) * 1936-11-14 1939-02-14 Eureka X Ray Tube Corp X-ray tube
BE469098A (es) * 1946-05-09
US3567928A (en) * 1969-06-12 1971-03-02 Du Pont Fluorescent analytical radiation source for producing soft x-rays and secondary electrons
US3649861A (en) * 1970-09-09 1972-03-14 Picker Corp Double focus x-ray tube
DE2417820C3 (de) * 1974-04-11 1980-12-04 Philips Patentverwaltung Gmbh, 2000 Hamburg Katodenkopf einer Drehanoden-Röntgenröhre
US3916202A (en) * 1974-05-03 1975-10-28 Gen Electric Lens-grid system for electron tubes
US4065689A (en) * 1974-11-29 1977-12-27 Picker Corporation Dual filament X-ray tube
US3946261A (en) * 1975-01-03 1976-03-23 The Machlett Laboratories, Inc. Dual filament X-Ray tube
JPS5330292A (en) * 1976-09-01 1978-03-22 Toshiba Corp X-ray tube
JPS5568056A (en) * 1978-11-17 1980-05-22 Hitachi Ltd X-ray tube
JPS55108158A (en) * 1979-02-13 1980-08-19 Hitachi Ltd Cathode for x-ray tube
US4331875A (en) * 1980-04-07 1982-05-25 Burroughs Corporation Shadow casting electron-beam system
DE3222511C2 (de) * 1982-06-16 1985-08-29 Feinfocus Röntgensysteme GmbH, 3050 Wunstorf Feinfokus-Röntgenröhre
JPS59165353A (ja) * 1983-03-11 1984-09-18 Toshiba Corp 回転陽極型ｘ線管
JPS60254538A (ja) * 1984-05-31 1985-12-16 Toshiba Corp Ｘ線管装置
JPS6224543A (ja) * 1985-07-24 1987-02-02 Toshiba Corp Ｘ線管装置

Also Published As

Publication number Publication date
EP0283039A2 (en) 1988-09-21
US4868842A (en) 1989-09-19
DE3871829D1 (de) 1992-07-16
EP0283039B1 (en) 1992-06-10
DE3871829T2 (de) 1992-12-10
EP0283039A3 (en) 1989-04-12
US4894853A (en) 1990-01-16

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