FR2784225B1 - SOURCE OF ELECTRONS WITH EMISSIVE CATHODES COMPRISING AT LEAST ONE ELECTRODE FOR PROTECTION AGAINST INTERFERENCE EMISSIONS - Google Patents

SOURCE OF ELECTRONS WITH EMISSIVE CATHODES COMPRISING AT LEAST ONE ELECTRODE FOR PROTECTION AGAINST INTERFERENCE EMISSIONS

Info

Publication number
FR2784225B1
FR2784225B1 FR9812367A FR9812367A FR2784225B1 FR 2784225 B1 FR2784225 B1 FR 2784225B1 FR 9812367 A FR9812367 A FR 9812367A FR 9812367 A FR9812367 A FR 9812367A FR 2784225 B1 FR2784225 B1 FR 2784225B1
Authority
FR
France
Prior art keywords
electrons
electrode
source
protection against
against interference
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
FR9812367A
Other languages
French (fr)
Other versions
FR2784225A1 (en
Inventor
Francois Levy
Brigitte Montmayeul
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR9812367A priority Critical patent/FR2784225B1/en
Priority to PCT/FR1999/002328 priority patent/WO2000021112A1/en
Publication of FR2784225A1 publication Critical patent/FR2784225A1/en
Application granted granted Critical
Publication of FR2784225B1 publication Critical patent/FR2784225B1/en
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
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/06—Cathodes
    • H01J35/065—Field emission, photo emission or secondary emission cathodes
    • 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
    • H01J3/02—Electron guns
    • H01J3/021—Electron guns using a field emission, photo emission, or secondary emission electron source
    • H01J3/022—Electron guns using a field emission, photo emission, or secondary emission electron source with microengineered cathode, e.g. Spindt-type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/123—Flat display tubes
    • H01J31/125—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection
    • H01J31/127—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection using large area or array sources, i.e. essentially a source for each pixel group
FR9812367A 1998-10-02 1998-10-02 SOURCE OF ELECTRONS WITH EMISSIVE CATHODES COMPRISING AT LEAST ONE ELECTRODE FOR PROTECTION AGAINST INTERFERENCE EMISSIONS Expired - Fee Related FR2784225B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9812367A FR2784225B1 (en) 1998-10-02 1998-10-02 SOURCE OF ELECTRONS WITH EMISSIVE CATHODES COMPRISING AT LEAST ONE ELECTRODE FOR PROTECTION AGAINST INTERFERENCE EMISSIONS
PCT/FR1999/002328 WO2000021112A1 (en) 1998-10-02 1999-09-30 Electron source comprising at least a protective electrode against spurious emissions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9812367A FR2784225B1 (en) 1998-10-02 1998-10-02 SOURCE OF ELECTRONS WITH EMISSIVE CATHODES COMPRISING AT LEAST ONE ELECTRODE FOR PROTECTION AGAINST INTERFERENCE EMISSIONS

Publications (2)

Publication Number Publication Date
FR2784225A1 FR2784225A1 (en) 2000-04-07
FR2784225B1 true FR2784225B1 (en) 2001-03-09

Family

ID=9531131

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9812367A Expired - Fee Related FR2784225B1 (en) 1998-10-02 1998-10-02 SOURCE OF ELECTRONS WITH EMISSIVE CATHODES COMPRISING AT LEAST ONE ELECTRODE FOR PROTECTION AGAINST INTERFERENCE EMISSIONS

Country Status (2)

Country Link
FR (1) FR2784225B1 (en)
WO (1) WO2000021112A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030002628A1 (en) * 2001-06-27 2003-01-02 Wilson Colin R. Method and system for generating an electron beam in x-ray generating devices
JP2007538359A (en) * 2004-05-19 2007-12-27 コメット ホールディング アーゲー High-dose X-ray tube

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665241A (en) * 1970-07-13 1972-05-23 Stanford Research Inst Field ionizer and field emission cathode structures and methods of production
FR2669465B1 (en) * 1990-11-16 1996-07-12 Thomson Rech SOURCE OF ELECTRONS AND METHOD FOR THE PRODUCTION THEREOF.
FR2687841B1 (en) * 1992-02-21 1994-04-08 Commissariat A Energie Atomique CATHODOLUMINESCENT SCREEN COMPRISING A MATRIX SOURCE OF ELECTRONS.
US5717285A (en) * 1993-03-17 1998-02-10 Commissariat A L 'energie Atomique Microtip display device having a current limiting layer and a charge avoiding layer
JPH08264139A (en) * 1995-03-22 1996-10-11 Hamamatsu Photonics Kk X-ray generating apparatus
EP0896730B1 (en) * 1996-05-03 2003-03-26 Micron Technology, Inc. Shielded field emission display
FR2748347B1 (en) * 1996-05-06 1998-07-24 Pixtech Sa FLAT VISUALIZATION SCREEN ANODE WITH PROTECTIVE RING
JPH1092348A (en) * 1996-07-23 1998-04-10 Futaba Corp Field emission image display device and its driving method
US5760535A (en) * 1996-10-31 1998-06-02 Motorola, Inc. Field emission device
US5929560A (en) * 1996-10-31 1999-07-27 Motorola, Inc. Field emission display having an ion shield
JP2939943B2 (en) * 1996-11-01 1999-08-25 日本電気株式会社 Cold cathode electron gun and microwave tube device having the same
US5847407A (en) * 1997-02-03 1998-12-08 Motorola Inc. Charge dissipation field emission device

Also Published As

Publication number Publication date
FR2784225A1 (en) 2000-04-07
WO2000021112A1 (en) 2000-04-13

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Legal Events

Date Code Title Description
ST Notification of lapse