BR112012025675A2 - elemento de catálogo para um tubo de raios-x microfoco - Google Patents

elemento de catálogo para um tubo de raios-x microfoco

Info

Publication number
BR112012025675A2
BR112012025675A2 BR112012025675A BR112012025675A BR112012025675A2 BR 112012025675 A2 BR112012025675 A2 BR 112012025675A2 BR 112012025675 A BR112012025675 A BR 112012025675A BR 112012025675 A BR112012025675 A BR 112012025675A BR 112012025675 A2 BR112012025675 A2 BR 112012025675A2
Authority
BR
Brazil
Prior art keywords
microfocus
ray tube
catalog element
electron beam
catalog
Prior art date
Application number
BR112012025675A
Other languages
English (en)
Inventor
Neuser Eberhard
Schmitt Andreas
Sperner Wolfgang
Original Assignee
Ge Sensing & Inspection Tech
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 Ge Sensing & Inspection Tech filed Critical Ge Sensing & Inspection Tech
Publication of BR112012025675A2 publication Critical patent/BR112012025675A2/pt

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/16—Cathodes heated directly by an electric current characterised by the shape
    • 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

Landscapes

  • X-Ray Techniques (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

elemento de catálogo para um tubo de raios-x microfoco. um elemento de catálogo para um tubo de raios-x microfoco compreende um filamento que consiste de fio aquecível para emissão termiônica de elétrons para formar um feixe de elétrons. o filamento compreende em uma região de fonte do feixe de elétrons uma extensão alongada (11, 12) em cada uma das duas direções perpendiculares ao feixe de elétrons.
BR112012025675A 2010-04-09 2010-04-09 elemento de catálogo para um tubo de raios-x microfoco BR112012025675A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/002223 WO2011124237A1 (de) 2010-04-09 2010-04-09 Kathodenelement für eine mikrofokus-röntgenröhre

Publications (1)

Publication Number Publication Date
BR112012025675A2 true BR112012025675A2 (pt) 2016-07-05

Family

ID=43216547

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012025675A BR112012025675A2 (pt) 2010-04-09 2010-04-09 elemento de catálogo para um tubo de raios-x microfoco

Country Status (5)

Country Link
US (1) US9601300B2 (pt)
EP (1) EP2556525B1 (pt)
CN (1) CN102884606A (pt)
BR (1) BR112012025675A2 (pt)
WO (1) WO2011124237A1 (pt)

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5435078B1 (pt) * 1970-07-30 1979-10-31
JPS5433512B2 (pt) * 1972-05-22 1979-10-20
DE2249365C3 (de) * 1972-10-09 1983-11-17 Siemens AG, 1000 Berlin und 8000 München Röntgengerät mit einer der Glühkathode der Röntgenröhre vorgelagerten Rechteckblende, an der eine einstellbare Spannung liegt
JPS5444688U (pt) 1977-09-02 1979-03-27
JPS63105427A (ja) * 1986-10-20 1988-05-10 Toshiba Corp Ｘ線管用陰極構体の製造方法
US4825123A (en) 1986-12-31 1989-04-25 General Electric Company Two-piece cathode cup
US4979199A (en) * 1989-10-31 1990-12-18 General Electric Company Microfocus X-ray tube with optical spot size sensing means
JP3149449B2 (ja) 1991-03-27 2001-03-26 株式会社島津製作所 Ｘ線管
DE69940637D1 (de) * 1998-07-09 2009-05-07 Hamamatsu Photonics Kk Röntgenröhre
GB9906886D0 (en) * 1999-03-26 1999-05-19 Bede Scient Instr Ltd Method and apparatus for prolonging the life of an X-ray target
JP3934836B2 (ja) * 1999-10-29 2007-06-20 浜松ホトニクス株式会社 非破壊検査装置
JP2005190757A (ja) * 2003-12-25 2005-07-14 Showa Optronics Co Ltd Ｘ線発生装置
US7352846B2 (en) * 2005-10-21 2008-04-01 Rigaku Corporation Filament for X-ray tube and X-ray tube having the same
JP2007165236A (ja) * 2005-12-16 2007-06-28 Hitachi Medical Corp マイクロフォーカスｘ線管及びそれを用いたｘ線装置
DE102006032607B4 (de) * 2006-07-11 2011-08-25 Carl Zeiss Industrielle Messtechnik GmbH, 73447 Anordnung zur Erzeugung elektromagnetischer Strahlung und Verfahren zum Betreiben der Anordnung
CN101536135A (zh) 2006-11-21 2009-09-16 株式会社岛津制作所 X射线发生装置
FR2918501B1 (fr) * 2007-07-02 2009-11-06 Xenocs Soc Par Actions Simplif Dispositif de delivrance d'un faisceau de rayons x a haute energie
WO2009019791A1 (ja) * 2007-08-09 2009-02-12 Shimadzu Corporation Ｘ線管装置
US7539286B1 (en) * 2007-11-19 2009-05-26 Varian Medical Systems, Inc. Filament assembly having reduced electron beam time constant
US7860219B2 (en) * 2008-09-26 2010-12-28 Varian Medical Systems, Inc. Cathode assembly with integral tabs

Also Published As

Publication number Publication date
CN102884606A (zh) 2013-01-16
EP2556525B1 (de) 2018-08-22
US9601300B2 (en) 2017-03-21
WO2011124237A1 (de) 2011-10-13
EP2556525A1 (de) 2013-02-13
US20130039475A1 (en) 2013-02-14

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]