DE69913985D1 - Röntgenröhre mit variabler abbildungs-fleckgrösse - Google Patents

Röntgenröhre mit variabler abbildungs-fleckgrösse

Info

Publication number
DE69913985D1
DE69913985D1 DE69913985T DE69913985T DE69913985D1 DE 69913985 D1 DE69913985 D1 DE 69913985D1 DE 69913985 T DE69913985 T DE 69913985T DE 69913985 T DE69913985 T DE 69913985T DE 69913985 D1 DE69913985 D1 DE 69913985D1
Authority
DE
Germany
Prior art keywords
cathode
electron beam
target
anode
spot
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
DE69913985T
Other languages
English (en)
Other versions
DE69913985T2 (de
Inventor
Brownell True
Charles Taylor
Christopher Paul Ferrari
Gary Allen
Michael Bemis
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.)
L3 Technologies Inc
Original Assignee
L3 Communications Corp
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 L3 Communications Corp filed Critical L3 Communications Corp
Publication of DE69913985D1 publication Critical patent/DE69913985D1/de
Application granted granted Critical
Publication of DE69913985T2 publication Critical patent/DE69913985T2/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
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/12—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
    • 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
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
    • H01J35/153—Spot position control

Landscapes

  • X-Ray Techniques (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
DE69913985T 1998-10-27 1999-10-27 Röntgenröhre mit variabler abbildungs-fleckgrösse Expired - Fee Related DE69913985T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/179,805 US6236713B1 (en) 1998-10-27 1998-10-27 X-ray tube providing variable imaging spot size
US179805 1998-10-27
PCT/US1999/025239 WO2000025342A1 (en) 1998-10-27 1999-10-27 X-ray tube providing variable imaging spot size

Publications (2)

Publication Number Publication Date
DE69913985D1 true DE69913985D1 (de) 2004-02-05
DE69913985T2 DE69913985T2 (de) 2004-12-09

Family

ID=22658069

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69913985T Expired - Fee Related DE69913985T2 (de) 1998-10-27 1999-10-27 Röntgenröhre mit variabler abbildungs-fleckgrösse

Country Status (6)

Country Link
US (1) US6236713B1 (de)
EP (1) EP1133784B1 (de)
JP (1) JP2002528878A (de)
AT (1) ATE257276T1 (de)
DE (1) DE69913985T2 (de)
WO (1) WO2000025342A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7027559B2 (en) * 2001-09-07 2006-04-11 General Electric Company Method and apparatus for generating x-ray beams
US7180981B2 (en) * 2002-04-08 2007-02-20 Nanodynamics-88, Inc. High quantum energy efficiency X-ray tube and targets
US6785359B2 (en) * 2002-07-30 2004-08-31 Ge Medical Systems Global Technology Company, Llc Cathode for high emission x-ray tube
JP2004265602A (ja) 2003-01-10 2004-09-24 Toshiba Corp Ｘ線装置
ATE470948T1 (de) * 2003-07-30 2010-06-15 Koninkl Philips Electronics Nv Röntgenröhre mit geformter anode
US6968039B2 (en) * 2003-08-04 2005-11-22 Ge Medical Systems Global Technology Co., Llc Focal spot position adjustment system for an imaging tube
US6901136B1 (en) * 2003-12-02 2005-05-31 Ge Medical Systems Global Technology Co., Llc X-ray tube system and apparatus with conductive proximity between cathode and electromagnetic shield
US7145988B2 (en) * 2003-12-03 2006-12-05 General Electric Company Sealed electron beam source
US7257194B2 (en) * 2004-02-09 2007-08-14 Varian Medical Systems Technologies, Inc. Cathode head with focal spot control
US7197116B2 (en) * 2004-11-16 2007-03-27 General Electric Company Wide scanning x-ray source
US8716925B2 (en) * 2011-08-09 2014-05-06 L-3 Communications Corporation Adjustable perveance electron gun header
JP6498535B2 (ja) * 2015-06-10 2019-04-10 キヤノン電子管デバイス株式会社 Ｘ線管
US20190193193A1 (en) * 2017-12-22 2019-06-27 Arcam Ab Electron beam source and the use of the same
US20190272970A1 (en) * 2018-03-02 2019-09-05 AcceleRAD Technologies, Inc. Static collimator for reducing spot size of an electron beam

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL18969C (nl) 1925-02-11 1928-11-15 Chf Mueller inrichting voor het regelen van de grootte der brandvlek bij een roentgenbuis met gloeikathode
US2011540A (en) 1934-04-18 1935-08-13 James F Lee X-ray tube
GB460181A (en) 1934-05-19 1937-01-20 Felix Raymund Ajkay Improvements in and relating to roentgen-ray tubes
US2683223A (en) 1952-07-24 1954-07-06 Licentia Gmbh X-ray tube
JPS5435078B1 (de) 1970-07-30 1979-10-31
JPS5318318B2 (de) 1972-12-27 1978-06-14
SU458899A1 (ru) * 1973-03-22 1975-01-30 Предприятие П/Я М-5659 Ренгеновска трубка
FR2333344A1 (fr) 1975-11-28 1977-06-24 Radiologie Cie Gle Tube radiogene a cathode chaude avec anode en bout et appareil comportant un tel tube
DE3142281A1 (de) 1981-10-24 1983-05-05 Philips Patentverwaltung Gmbh, 2000 Hamburg Roentgenroehre mit einem metallteil und einer gegenueber dem metallteil positive hochspannung fuehrenden elektrode
US4566116A (en) * 1982-04-30 1986-01-21 Hitachi, Ltd. Soft X-ray generator
US4689809A (en) * 1982-11-23 1987-08-25 Elscint, Inc. X-ray tube having an adjustable focal spot
JPS5994348A (ja) * 1983-10-28 1984-05-31 Hitachi Ltd 可変焦点ｘ線管
DE3401749A1 (de) 1984-01-19 1985-08-01 Siemens AG, 1000 Berlin und 8000 München Roentgendiagnostikeinrichtung mit einer roentgenroehre
DE3426623A1 (de) 1984-07-19 1986-01-30 Scanray A/S, Kopenhagen Roentgenroehre
US4731804A (en) 1984-12-31 1988-03-15 North American Philips Corporation Window configuration of an X-ray tube
US4993055A (en) 1988-11-23 1991-02-12 Imatron, Inc. Rotating X-ray tube with external bearings
FR2644931A1 (fr) 1989-03-24 1990-09-28 Gen Electric Cgr Tube a rayons x a balayage avec plaques de deflexion
US4979199A (en) 1989-10-31 1990-12-18 General Electric Company Microfocus X-ray tube with optical spot size sensing means
NL9000203A (nl) 1990-01-29 1991-08-16 Philips Nv Eindvenster roentgenbuis.
US5128977A (en) * 1990-08-24 1992-07-07 Michael Danos X-ray tube
JPH0613195A (ja) * 1992-06-29 1994-01-21 Shimadzu Corp Ｘ線透視撮影装置
DE19513290C1 (de) * 1995-04-07 1996-07-25 Siemens Ag Röntgenröhre mit einem Niedrigtemperatur-Emitter
EP0900449A1 (de) 1996-05-07 1999-03-10 American Science & Engineering, Inc. Röntgenröhre für bilderzeugungssysteme
DE19639918C2 (de) * 1996-09-27 2001-02-22 Siemens Ag Röntgengerät mit einer Röntgenröhre mit Variofokus
GB9620160D0 (en) 1996-09-27 1996-11-13 Bede Scient Instr Ltd X-ray generator

Also Published As

Publication number Publication date
US6236713B1 (en) 2001-05-22
EP1133784A1 (de) 2001-09-19
ATE257276T1 (de) 2004-01-15
WO2000025342A1 (en) 2000-05-04
JP2002528878A (ja) 2002-09-03
EP1133784B1 (de) 2004-01-02
DE69913985T2 (de) 2004-12-09

Similar Documents

Publication Publication Date Title
US6259765B1 (en) X-ray tube comprising an electron source with microtips and magnetic guiding means
US1355126A (en) X-ray tube
DE69913985D1 (de) Röntgenröhre mit variabler abbildungs-fleckgrösse
EP0924742A2 (de) Einrichtung zur Vermeidung einer Überhitzung des Fensters einer Röntgenröhre
US3751701A (en) Convergent flow hollow beam x-ray gun with high average power
GB2015245A (en) X-ray tubes
US9048064B2 (en) Cathode assembly for a long throw length X-ray tube
US3732426A (en) X-ray source for generating an x-ray beam having selectable sectional shapes
US10121629B2 (en) Angled flat emitter for high power cathode with electrostatic emission control
US9928985B2 (en) Robust emitter for minimizing damage from ion bombardment
US3344298A (en) Flash x-ray tube with gas focusing of beam
US3310678A (en) Method of producing electron multiplication utilizing an amplification cycle
JPS6318297B2 (de)
GB2018507A (en) A single use X-ray source
JP4091217B2 (ja) Ｘ線管
US3892989A (en) Convergent flow hollow beam X-ray gun construction
JP4204717B2 (ja) 透過型ｘ線管装置
US3543034A (en) X-ray image transducer tube having crenelated fluorescent layer ahead of solid-state image intensifier
AU763548B2 (en) High energy X-ray tube
JP2005190757A (ja) Ｘ線発生装置
Gaines et al. An improved annular-shaped electron gun for an X-ray generator
US2992360A (en) Suppressor device for the secondary emission current in magnetic field electronic tubes
JPH0714503A (ja) レーザー熱陰極構造体
JP7395086B1 (ja) Ｘ線発生装置、ターゲットの調整方法、および、ｘ線発生装置の使用方法
US5796805A (en) X-ray source

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee