WO2012139872A3 - Elektronenquelle zur erzeugung eines elektronenstrahls sowie röntgenquelle zur erzeugung von röntgenstrahlung - Google Patents

Elektronenquelle zur erzeugung eines elektronenstrahls sowie röntgenquelle zur erzeugung von röntgenstrahlung Download PDF

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Publication number
WO2012139872A3
WO2012139872A3 PCT/EP2012/055205 EP2012055205W WO2012139872A3 WO 2012139872 A3 WO2012139872 A3 WO 2012139872A3 EP 2012055205 W EP2012055205 W EP 2012055205W WO 2012139872 A3 WO2012139872 A3 WO 2012139872A3
Authority
WO
WIPO (PCT)
Prior art keywords
electron
source
generating
ray
emitter
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.)
Ceased
Application number
PCT/EP2012/055205
Other languages
English (en)
French (fr)
Other versions
WO2012139872A2 (de
Inventor
Reiner Franz Schulz
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
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2012139872A2 publication Critical patent/WO2012139872A2/de
Publication of WO2012139872A3 publication Critical patent/WO2012139872A3/de
Anticipated expiration legal-status Critical
Ceased 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements common to two or more basic types of discharge tubes or lamps
    • H01J3/06—Details of electron-optical or ion-optical arrangements common to two or more basic types of discharge tubes or lamps two or more guns being arranged in a single vacuum space, e.g. for plural-ray tubes
    • 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
    • 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
    • H05G1/70—Circuit arrangements for X-ray tubes with more than one anode; Circuit arrangements for apparatus comprising more than one X ray tube or more than one cathode
    • 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)

Abstract

Elektronenquelle zur Erzeugung eines Elektronenstrahls sowie Röntgenquelle zur Erzeugung von Röntgenstrahlung. Die Erfindung betrifft eine Elektronenquelle (1) zur Erzeugung eines Elektronenstrahls (22), in der ein erster Elektronenemitter (20) zur Erzeugung von Elektronen und zumindest ein zweiter Elektronenemitter (21) zur Erzeugung von Elektronen angeordnet sind, wobei der erste Elektronenemitter (20) und der zumindest eine zweite Elektronenemitter (21) alternativ betreibbar ausgestaltet sind und zueinander ortsfest angeordnet sind. Zusätzlich ist bei der Elektronenquelle (1) wenigstens eine gemeinsame Vorrichtung zur Fokussierung der Elektronen des ersten Elektronenemitters (20) und des zumindest einen zweiten Elektronenemitters (21) vorgesehen, wobei durch die wenigstens eine Vorrichtung zur Fokussierung der Elektronen der gebildete Elektronenstrahl (22) des ersten Elektronenemitters (20) und der gebildete Elektronenstrahl (22) des zumindest einen zweiten Elektronenemitters (21) auf eine gemeinsame Fokussierflache (23) gerichtet werden können. Ferner betrifft die Erfindung eine Röntgenquelle (100), wobei die Röntgenquelle (100) eine Elektronenquelle (1) und eine Anode (24) aufweist, wobei die Elektronenquelle (1) wie oben erläutert ausgebildet ist.
PCT/EP2012/055205 2011-04-12 2012-03-23 Elektronenquelle zur erzeugung eines elektronenstrahls sowie röntgenquelle zur erzeugung von röntgenstrahlung Ceased WO2012139872A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011007215.2 2011-04-12
DE102011007215A DE102011007215A1 (de) 2011-04-12 2011-04-12 Elektronenquelle zur Erzeugung eines Elektronenstrahls sowie Röntgenquelle zur Erzeugung von Röntgenstrahlung

Publications (2)

Publication Number Publication Date
WO2012139872A2 WO2012139872A2 (de) 2012-10-18
WO2012139872A3 true WO2012139872A3 (de) 2012-12-06

Family

ID=46017793

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/055205 Ceased WO2012139872A2 (de) 2011-04-12 2012-03-23 Elektronenquelle zur erzeugung eines elektronenstrahls sowie röntgenquelle zur erzeugung von röntgenstrahlung

Country Status (2)

Country Link
DE (1) DE102011007215A1 (de)
WO (1) WO2012139872A2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3832689A3 (de) 2019-12-05 2021-08-11 Hologic, Inc. Systeme und verfahren für verbesserte röntgenröhrenlebensdauer
US11471118B2 (en) 2020-03-27 2022-10-18 Hologic, Inc. System and method for tracking x-ray tube focal spot position
EP4163948A1 (de) * 2021-10-08 2023-04-12 Excillum AB Kathodenanordnung
US12414217B2 (en) 2022-02-07 2025-09-09 Hologic, Inc. Systems and methods for adaptively controlling filament current in an X-ray tube

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799248A (en) * 1987-08-06 1989-01-17 Picker International, Inc. X-ray tube having multiple cathode filaments
US5241577A (en) * 1992-01-06 1993-08-31 Picker International, Inc. X-ray tube with bearing slip ring
US5303281A (en) * 1992-07-09 1994-04-12 Varian Associates, Inc. Mammography method and improved mammography X-ray tube
US5901197A (en) * 1997-08-20 1999-05-04 Continental X-Ray Corporation Method of extending the life of a multiple filament x-ray tube
DE10011294A1 (de) * 1999-03-31 2000-10-05 Siemens Ag Röntgenröhre
US20050025284A1 (en) * 2003-01-21 2005-02-03 Masaji Kanagami X-ray tube apparatus
US20060018430A1 (en) * 2004-07-20 2006-01-26 Communications & Power Industries Canada Inc. Active dose reduction device and method
US20070237300A1 (en) * 2006-04-05 2007-10-11 Jong Uk Kim X-ray tube system with disassembled carbon nanotube substrate for generating micro focusing level electron-beam

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3168824B2 (ja) * 1994-04-30 2001-05-21 株式会社島津製作所 Ｘ線ｃｔ装置
DE19953613A1 (de) * 1999-11-08 2001-05-17 Siemens Ag CT-Gerät sowie Verfahren zum Betrieb eines CT-Geräts

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799248A (en) * 1987-08-06 1989-01-17 Picker International, Inc. X-ray tube having multiple cathode filaments
US5241577A (en) * 1992-01-06 1993-08-31 Picker International, Inc. X-ray tube with bearing slip ring
US5303281A (en) * 1992-07-09 1994-04-12 Varian Associates, Inc. Mammography method and improved mammography X-ray tube
US5901197A (en) * 1997-08-20 1999-05-04 Continental X-Ray Corporation Method of extending the life of a multiple filament x-ray tube
DE10011294A1 (de) * 1999-03-31 2000-10-05 Siemens Ag Röntgenröhre
US20050025284A1 (en) * 2003-01-21 2005-02-03 Masaji Kanagami X-ray tube apparatus
US20060018430A1 (en) * 2004-07-20 2006-01-26 Communications & Power Industries Canada Inc. Active dose reduction device and method
US20070237300A1 (en) * 2006-04-05 2007-10-11 Jong Uk Kim X-ray tube system with disassembled carbon nanotube substrate for generating micro focusing level electron-beam

Also Published As

Publication number Publication date
WO2012139872A2 (de) 2012-10-18
DE102011007215A1 (de) 2012-10-18

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