FR2370356A1 - Perfectionnements aux emetteurs d'electrons - Google Patents

Perfectionnements aux emetteurs d'electrons

Info

Publication number
FR2370356A1
FR2370356A1 FR7732872A FR7732872A FR2370356A1 FR 2370356 A1 FR2370356 A1 FR 2370356A1 FR 7732872 A FR7732872 A FR 7732872A FR 7732872 A FR7732872 A FR 7732872A FR 2370356 A1 FR2370356 A1 FR 2370356A1
Authority
FR
France
Prior art keywords
electron
perforated
electrode arrangement
field emitting
tubes
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.)
Granted
Application number
FR7732872A
Other languages
English (en)
Other versions
FR2370356B1 (fr
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.)
EMI Varian Ltd
Original Assignee
EMI Varian Ltd
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 EMI Varian Ltd filed Critical EMI Varian Ltd
Publication of FR2370356A1 publication Critical patent/FR2370356A1/fr
Application granted granted Critical
Publication of FR2370356B1 publication Critical patent/FR2370356B1/fr
Granted 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
    • H01J1/30—Cold cathodes, e.g. field-emissive cathode
    • H01J1/304—Field-emissive cathodes

Landscapes

  • Microwave Tubes (AREA)
  • Lasers (AREA)

Abstract

L'invention concerne les émetteurs d'électrons. L'émetteur décrit comprend une masse de matière présentant de multiples saillies formant zones émettrices de champ, ainsi qu'une disposition d'électrode extractice ajourée et une disposition d'électrode de concentration ajourée, ces deux électrodes ayant une configuration telle qu'elles forment de multiples champs électriques de concentration en face de chaque zone émettrice de champ. Application : sources d'électrons non chauffées pour tubes électroniques tels que klystrons, tubes à microns-ondes etc.
FR7732872A 1976-11-04 1977-11-02 Perfectionnements aux emetteurs d'electrons Granted FR2370356A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB45835/76A GB1555800A (en) 1976-11-04 1976-11-04 Electron emitters

Publications (2)

Publication Number Publication Date
FR2370356A1 true FR2370356A1 (fr) 1978-06-02
FR2370356B1 FR2370356B1 (fr) 1982-09-10

Family

ID=10438789

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7732872A Granted FR2370356A1 (fr) 1976-11-04 1977-11-02 Perfectionnements aux emetteurs d'electrons

Country Status (5)

Country Link
US (1) US4145635A (fr)
JP (1) JPS5357739A (fr)
DE (1) DE2747266A1 (fr)
FR (1) FR2370356A1 (fr)
GB (1) GB1555800A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0430461A2 (fr) * 1989-11-29 1991-06-05 THE GENERAL ELECTRIC COMPANY, p.l.c. Dispositifs utilisant l'émission de champ

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227116A (en) * 1978-07-24 1980-10-07 Varian Associates, Inc. Zero-bias gridded gun
US4593230A (en) * 1982-03-29 1986-06-03 Litton Systems, Inc. Dual-mode electron gun
US4782267A (en) * 1986-02-07 1988-11-01 Applied Electron Corporation In-situ wide area vacuum ultraviolet lamp
US5227701A (en) * 1988-05-18 1993-07-13 Mcintyre Peter M Gigatron microwave amplifier
FR2644627B1 (fr) * 1989-03-17 1996-01-05 Videocolor Canon de tube cathodique a source d'electrons a effet de champ
DE4002049C2 (de) * 1990-01-24 1993-12-09 Deutsche Forsch Luft Raumfahrt Elektronenemissionsquelle und Einrichtung zum Bestrahlen von Medien mit einer solchen Elektronenemissionsquelle
GB2318208B (en) * 1990-07-13 1998-09-02 Marconi Gec Ltd Electronic switching devices
US5159241A (en) * 1990-10-25 1992-10-27 General Dynamics Corporation Air Defense Systems Division Single body relativistic magnetron
US5162698A (en) * 1990-12-21 1992-11-10 General Dynamics Corporation Air Defense Systems Div. Cascaded relativistic magnetron
US5191217A (en) * 1991-11-25 1993-03-02 Motorola, Inc. Method and apparatus for field emission device electrostatic electron beam focussing
US5332945A (en) * 1992-05-11 1994-07-26 Litton Systems, Inc. Pierce gun with grading electrode
US5327094A (en) * 1992-12-11 1994-07-05 Litton Systems, Inc. Jitter suppression in crossed-field amplifier by use of field emitter
JPH07107829B2 (ja) * 1993-06-08 1995-11-15 日本電気株式会社 密度変調電子銃とこれを用いたマイクロ波管
JP2625370B2 (ja) * 1993-12-22 1997-07-02 日本電気株式会社 電界放出冷陰極とこれを用いたマイクロ波管
US5534747A (en) * 1994-05-13 1996-07-09 Litton Systems, Inc. Variable focus electron gun assembly with ceramic spacers
JPH08315721A (ja) * 1995-05-19 1996-11-29 Nec Kansai Ltd 電界放出冷陰極
AU6626096A (en) * 1995-08-04 1997-03-05 Printable Field Emitters Limited Field electron emission materials and devices
US5903804A (en) * 1996-09-30 1999-05-11 Science Applications International Corporation Printer and/or scanner and/or copier using a field emission array
US5874806A (en) * 1996-10-02 1999-02-23 Litton Systems, Inc. Passive jitter reduction in crossed-field amplifier with secondary emission material on anode vanes
DE102013223517A1 (de) * 2013-11-19 2015-06-03 Siemens Aktiengesellschaft Elektronenkanone und Strahlungserzeugungsanlage
US20240234075A1 (en) * 2021-04-12 2024-07-11 Ncx Corporation Energy tuner for a gated field emission cathode device, and associated method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2100370A5 (fr) * 1970-11-16 1972-03-17 Varian Associates
US3665241A (en) * 1970-07-13 1972-05-23 Stanford Research Inst Field ionizer and field emission cathode structures and methods of production
US3720856A (en) * 1970-07-29 1973-03-13 Westinghouse Electric Corp Binary material field emitter structure
US3921022A (en) * 1974-09-03 1975-11-18 Rca Corp Field emitting device and method of making same
US3921027A (en) * 1974-09-13 1975-11-18 Joe Shelton Microwave beam tube

Patent Citations (6)

* 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
US3720856A (en) * 1970-07-29 1973-03-13 Westinghouse Electric Corp Binary material field emitter structure
FR2100370A5 (fr) * 1970-11-16 1972-03-17 Varian Associates
US3921022A (en) * 1974-09-03 1975-11-18 Rca Corp Field emitting device and method of making same
FR2331145A1 (fr) * 1974-09-03 1977-06-03 Rca Corp Dispositif a emission par champ et procede pour sa realisation
US3921027A (en) * 1974-09-13 1975-11-18 Joe Shelton Microwave beam tube

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/70 *
EXBK/75 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0430461A2 (fr) * 1989-11-29 1991-06-05 THE GENERAL ELECTRIC COMPANY, p.l.c. Dispositifs utilisant l'émission de champ
EP0430461A3 (en) * 1989-11-29 1992-03-18 The General Electric Company, P.L.C. Field emission devices

Also Published As

Publication number Publication date
JPS5357739A (en) 1978-05-25
DE2747266A1 (de) 1978-05-11
GB1555800A (en) 1979-11-14
FR2370356B1 (fr) 1982-09-10
US4145635A (en) 1979-03-20

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Legal Events

Date Code Title Description
ST Notification of lapse