EP0991106A3 - High power X-Ray tube - Google Patents

High power X-Ray tube Download PDF

Info

Publication number
EP0991106A3
EP0991106A3 EP99123769A EP99123769A EP0991106A3 EP 0991106 A3 EP0991106 A3 EP 0991106A3 EP 99123769 A EP99123769 A EP 99123769A EP 99123769 A EP99123769 A EP 99123769A EP 0991106 A3 EP0991106 A3 EP 0991106A3
Authority
EP
European Patent Office
Prior art keywords
window
high power
anode
secondary electrons
ray generating
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.)
Withdrawn
Application number
EP99123769A
Other languages
German (de)
French (fr)
Other versions
EP0991106A2 (en
Inventor
John E. Richardson
James E. Boye
Thomas J. Koller
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates 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 Varian Associates Inc filed Critical Varian Associates Inc
Publication of EP0991106A2 publication Critical patent/EP0991106A2/en
Publication of EP0991106A3 publication Critical patent/EP0991106A3/en
Withdrawn legal-status Critical Current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
    • 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
    • H01J35/18—Windows
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/12—Cooling
    • H01J2235/122—Cooling of the window
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/12—Cooling
    • H01J2235/1225—Cooling characterised by method
    • H01J2235/1262—Circulating fluids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/16—Vessels
    • H01J2235/165—Shielding arrangements
    • H01J2235/167—Shielding arrangements against thermal (heat) energy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/16—Vessels
    • H01J2235/165—Shielding arrangements
    • H01J2235/168—Shielding arrangements against charged particles

Abstract

A high power x-ray generating tube (2) for reducing the effects of excessive heating of the window (16) through which the x-rays (16) are transmitted. The x-ray generating tube consists of a metal center section (6) having a stationary cathode (8) and a rotating anode (10). Various embodiments are employed for deflecting secondary electrons back scattered from the anode away from the window (16) to avoid overheating of the window. In particular the invention is characterised in that the window (16) includes insulating means for providing a build-up of negative charge on the inner surface of the window to repel secondary electrons (20). A grounded anode simplifies the mechanisms required to prevent overheating.
EP99123769A 1990-11-21 1991-11-21 High power X-Ray tube Withdrawn EP0991106A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US61646490A 1990-11-21 1990-11-21
US616464 1990-11-21
EP19910310751 EP0491471A3 (en) 1990-11-21 1991-11-21 High power x-ray tube

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP19910310751 Division EP0491471A3 (en) 1990-11-21 1991-11-21 High power x-ray tube

Publications (2)

Publication Number Publication Date
EP0991106A2 EP0991106A2 (en) 2000-04-05
EP0991106A3 true EP0991106A3 (en) 2000-05-03

Family

ID=24469581

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19910310751 Withdrawn EP0491471A3 (en) 1990-11-21 1991-11-21 High power x-ray tube
EP99123769A Withdrawn EP0991106A3 (en) 1990-11-21 1991-11-21 High power X-Ray tube

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19910310751 Withdrawn EP0491471A3 (en) 1990-11-21 1991-11-21 High power x-ray tube

Country Status (2)

Country Link
EP (2) EP0491471A3 (en)
JP (1) JPH04315752A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5802140A (en) 1997-08-29 1998-09-01 Varian Associates, Inc. X-ray generating apparatus with integral housing
US6005918A (en) * 1997-12-19 1999-12-21 Picker International, Inc. X-ray tube window heat shield
US6215852B1 (en) * 1998-12-10 2001-04-10 General Electric Company Thermal energy storage and transfer assembly
US6714626B1 (en) * 2002-10-11 2004-03-30 Ge Medical Systems Global Technology Company, Llc Jet cooled x-ray tube window
US7016472B2 (en) * 2002-10-11 2006-03-21 General Electric Company X-ray tube window cooling apparatus
US7260181B2 (en) 2003-05-30 2007-08-21 Koninklijke Philips Electronics, N.V. Enhanced electron backscattering in x-ray tubes
JP5237636B2 (en) * 2004-06-30 2013-07-17 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ X-ray tube cooling system
JP4644508B2 (en) * 2005-03-30 2011-03-02 東芝電子管デバイス株式会社 X-ray tube
JP4828895B2 (en) * 2005-08-29 2011-11-30 株式会社東芝 Voltage application method for X-ray tube apparatus and X-ray tube apparatus
DE102005049455B4 (en) * 2005-10-15 2007-11-22 Ziehm Imaging Gmbh Heat exchanger for a single-boiler generator of an X-ray diagnostic device with a rotary anode tube with glass housing
US7616736B2 (en) * 2007-09-28 2009-11-10 Varian Medical Systems, Inc. Liquid cooled window assembly in an x-ray tube
JP5225881B2 (en) * 2008-02-08 2013-07-03 バリアン・メディカル・システムズ・インコーポレイテッド X-ray tube and X-ray tube cooling system
EP2277189B1 (en) 2008-04-17 2013-11-27 Philips Intellectual Property & Standards GmbH X-ray tube with passive ion collecting electrode
DE102008038569A1 (en) * 2008-08-20 2010-02-25 Siemens Aktiengesellschaft X-ray tube
US8130910B2 (en) * 2009-08-14 2012-03-06 Varian Medical Systems, Inc. Liquid-cooled aperture body in an x-ray tube
JP2010104819A (en) * 2010-02-01 2010-05-13 Toshiba Corp X-ray computer tomographic apparatus and x-ray tube device
JP5787626B2 (en) * 2011-06-07 2015-09-30 キヤノン株式会社 X-ray tube
DE102013215673B4 (en) * 2013-08-08 2016-05-25 Siemens Aktiengesellschaft Single pole X-ray source
CN106504967B (en) * 2016-12-14 2018-01-30 云南电网有限责任公司电力科学研究院 Negative and positive two have the X-ray tube of spinfunction

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1946312A (en) * 1927-10-18 1934-02-06 Gen Electric X-ray tube
US2665391A (en) * 1950-03-04 1954-01-05 Amperex Electronic Corp X-ray tube having a mica window
JPS5818900A (en) * 1981-07-27 1983-02-03 Hitachi Ltd X-ray tube device
US4731804A (en) * 1984-12-31 1988-03-15 North American Philips Corporation Window configuration of an X-ray tube

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124710A (en) * 1960-03-17 1964-03-10 X-ray tubes
US3334256A (en) * 1964-03-20 1967-08-01 Dunlee Corp Sealed window for x-ray generator with shield for seal
DE2833093A1 (en) * 1978-07-28 1980-02-07 Licentia Gmbh X=ray tube with slanting anode and copper casing with window - which comprises two beryllium, aluminium titanium or epoxy! discs doubling as cooling duct
EP0009946A1 (en) * 1978-10-02 1980-04-16 Pfizer Inc. X-ray tube
JPS60101848A (en) * 1983-11-09 1985-06-05 Hitachi Ltd X-ray tube

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1946312A (en) * 1927-10-18 1934-02-06 Gen Electric X-ray tube
US2665391A (en) * 1950-03-04 1954-01-05 Amperex Electronic Corp X-ray tube having a mica window
JPS5818900A (en) * 1981-07-27 1983-02-03 Hitachi Ltd X-ray tube device
US4731804A (en) * 1984-12-31 1988-03-15 North American Philips Corporation Window configuration of an X-ray tube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 094 (E - 171) 20 April 1983 (1983-04-20) *

Also Published As

Publication number Publication date
EP0491471A3 (en) 1992-09-30
JPH04315752A (en) 1992-11-06
EP0991106A2 (en) 2000-04-05
EP0491471A2 (en) 1992-06-24

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