JPH03105833A - 電子源 - Google Patents

電子源

Info

Publication number
JPH03105833A
JPH03105833A JP2239803A JP23980390A JPH03105833A JP H03105833 A JPH03105833 A JP H03105833A JP 2239803 A JP2239803 A JP 2239803A JP 23980390 A JP23980390 A JP 23980390A JP H03105833 A JPH03105833 A JP H03105833A
Authority
JP
Japan
Prior art keywords
electron source
electron
cathode
source according
flat
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.)
Pending
Application number
JP2239803A
Other languages
English (en)
Japanese (ja)
Inventor
Hermann Schaefer
ヘルマン、シエーフアー
Karl-Heinz Herrmann
カールハインツ、ヘルマン
Joerg Droemer
イエルク、ドレーマー
Peter Schaeffer
ペーター、シエーフアー
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 Corp
Original Assignee
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 Corp filed Critical Siemens Corp
Publication of JPH03105833A publication Critical patent/JPH03105833A/ja
Pending legal-status Critical Current

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

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Electron Beam Exposure (AREA)
  • Solid Thermionic Cathode (AREA)
JP2239803A 1989-09-12 1990-09-10 電子源 Pending JPH03105833A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP89116881.7 1989-09-12
EP89116881A EP0417340A1 (de) 1989-09-12 1989-09-12 Elektronenquelle

Publications (1)

Publication Number Publication Date
JPH03105833A true JPH03105833A (ja) 1991-05-02

Family

ID=8201884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2239803A Pending JPH03105833A (ja) 1989-09-12 1990-09-10 電子源

Country Status (2)

Country Link
EP (1) EP0417340A1 (de)
JP (1) JPH03105833A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009069335A1 (ja) * 2007-11-30 2009-06-04 Denki Kagaku Kogyo Kabushiki Kaisha 電子放出源及び電子放出源の製造方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR903976A (fr) * 1942-08-19 1945-10-23 Fides Gmbh Perfectionnements aux cathodes destinées à la production d'un faisceau électronique
US4528474A (en) * 1982-03-05 1985-07-09 Kim Jason J Method and apparatus for producing an electron beam from a thermionic cathode
US4551649A (en) * 1983-12-08 1985-11-05 Rockwell International Corporation Rounded-end protuberances for field-emission cathodes
EP0207772A3 (de) * 1985-07-02 1987-11-19 Wilhelm Heinrich Dr. Brünger Lanthan-Hexaboridelektronenquelle und Verfahren zur Herstellung derselben

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009069335A1 (ja) * 2007-11-30 2009-06-04 Denki Kagaku Kogyo Kabushiki Kaisha 電子放出源及び電子放出源の製造方法
US8456076B2 (en) 2007-11-30 2013-06-04 Denki Kagaku Kogyo Kabushiki Kaisha Electron emitting source and manufacturing method of electron emitting source

Also Published As

Publication number Publication date
EP0417340A1 (de) 1991-03-20

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