FR2451099A1 - Tube electronique a emission secondaire reduite - Google Patents

Tube electronique a emission secondaire reduite

Info

Publication number
FR2451099A1
FR2451099A1 FR8003555A FR8003555A FR2451099A1 FR 2451099 A1 FR2451099 A1 FR 2451099A1 FR 8003555 A FR8003555 A FR 8003555A FR 8003555 A FR8003555 A FR 8003555A FR 2451099 A1 FR2451099 A1 FR 2451099A1
Authority
FR
France
Prior art keywords
electronic tube
secondary emission
reduced secondary
reduced
emission
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
FR8003555A
Other languages
English (en)
Other versions
FR2451099B1 (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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
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 Varian Associates Inc filed Critical Varian Associates Inc
Publication of FR2451099A1 publication Critical patent/FR2451099A1/fr
Application granted granted Critical
Publication of FR2451099B1 publication Critical patent/FR2451099B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • 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
    • H01J1/36—Solid anodes; Solid auxiliary anodes for maintaining a discharge
    • 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
    • H01J1/46—Control electrodes, e.g. grid; Auxiliary electrodes

Abstract

L'INVENTION CONCERNE UN TUBE ELECTRONIQUE A EMISSION SECONDAIRE REDUITE. L'EMISSION DES ELECTRONS SECONDAIRES A GRANDE VITESSE EST REDUITE PAR UN REVETEMENT 21 SUR LA SURFACE COLLECTRICE, D'UNE MATIERE DE FAIBLE NOMBRE ATOMIQUE. CETTE MATIERE PEUT ETRE DU BORURE D'ALUMINIUM, DU CARBURE D'ALUMINIUM OU DU CARBURE DE BORE. L'INVENTION S'APPLIQUE NOTAMMENT AUX TUBES TETRODES, AUX TUBES A ONDE PROGRESSIVE ET AUX KLYSTRONS.
FR8003555A 1979-03-05 1980-02-19 Tube electronique a emission secondaire reduite Granted FR2451099A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/017,316 US4233539A (en) 1979-03-05 1979-03-05 Electron tube with reduced secondary emission

Publications (2)

Publication Number Publication Date
FR2451099A1 true FR2451099A1 (fr) 1980-10-03
FR2451099B1 FR2451099B1 (fr) 1983-07-08

Family

ID=21781919

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8003555A Granted FR2451099A1 (fr) 1979-03-05 1980-02-19 Tube electronique a emission secondaire reduite

Country Status (5)

Country Link
US (1) US4233539A (fr)
JP (1) JPS55130042A (fr)
CA (1) CA1136691A (fr)
FR (1) FR2451099A1 (fr)
GB (1) GB2044991B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506190A (en) * 1982-09-27 1985-03-19 Varian Associates, Inc. Linear beam tube with reflected electron trap
DE3247268C1 (de) * 1982-12-21 1984-03-29 Max Planck Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen Zum Verringern von Stoerungen durch Sekundaerelektronenemission dienende Beschichtung fuer einen Hochfrequenzleiter und Verfahren zum Herstellen einer solchen Beschichtung
US5334909A (en) * 1991-07-05 1994-08-02 Nec Corporationcorporation Microwave tube collector assembly including a chromium oxide film
US6285254B1 (en) * 2000-01-14 2001-09-04 Teledyne Technologies Incorporated System and method for linearizing vacuum electronic amplification
US6498532B2 (en) 2001-01-12 2002-12-24 Teledyne Technologies Incorporated System and method for linearizing vacuum electronic amplification
US6922455B2 (en) * 2002-01-28 2005-07-26 Starfire Industries Management, Inc. Gas-target neutron generation and applications
US6734734B2 (en) 2002-07-24 2004-05-11 Teledyne Technologies Incorporated Amplifier phase droop and phase noise systems and methods
FR2854728B1 (fr) * 2003-05-06 2005-07-29 Thales Sa Tube hyperfrequence a faible rayonnement parasite
US7656236B2 (en) 2007-05-15 2010-02-02 Teledyne Wireless, Llc Noise canceling technique for frequency synthesizer
US8179045B2 (en) 2008-04-22 2012-05-15 Teledyne Wireless, Llc Slow wave structure having offset projections comprised of a metal-dielectric composite stack
US9202660B2 (en) 2013-03-13 2015-12-01 Teledyne Wireless, Llc Asymmetrical slow wave structures to eliminate backward wave oscillations in wideband traveling wave tubes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR842981A (fr) * 1937-09-06 1939-06-22 Lorenz C Ag Procédé d'application de dépôts à fort pouvoir de rayonnement calorifuge et à faible pouvoir d'émission électronique secondaire, en particulier dans les tubes àdécharge électronique
FR57448E (fr) * 1947-07-12 1953-01-28 Int Standard Electric Corp Perfectionnements aux dispositifs à décharge électronique
US3389285A (en) * 1964-09-08 1968-06-18 Int Standard Electric Corp Grid electrode having a barrier layer of metal carbide and a surface coating of metal boride thereon
FR2133212A5 (fr) * 1971-04-13 1972-11-24 Thomson Csf

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2171230A (en) * 1938-02-28 1939-08-29 Rca Corp Insulating coating
US2516841A (en) * 1946-01-16 1950-08-01 Standard Telephones Cables Ltd Grid for electron discharge devices
US2821496A (en) * 1951-08-03 1958-01-28 Gen Electric Non-emissive grids
US2990495A (en) * 1953-09-14 1961-06-27 Varian Associates Thermionic tube
US3936695A (en) * 1974-04-26 1976-02-03 Varian Associates Electron collector having means for trapping secondary electrons in a linear beam microwave tube

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR842981A (fr) * 1937-09-06 1939-06-22 Lorenz C Ag Procédé d'application de dépôts à fort pouvoir de rayonnement calorifuge et à faible pouvoir d'émission électronique secondaire, en particulier dans les tubes àdécharge électronique
FR57448E (fr) * 1947-07-12 1953-01-28 Int Standard Electric Corp Perfectionnements aux dispositifs à décharge électronique
US3389285A (en) * 1964-09-08 1968-06-18 Int Standard Electric Corp Grid electrode having a barrier layer of metal carbide and a surface coating of metal boride thereon
FR2133212A5 (fr) * 1971-04-13 1972-11-24 Thomson Csf

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/78 *

Also Published As

Publication number Publication date
JPS634308B2 (fr) 1988-01-28
CA1136691A (fr) 1982-11-30
US4233539A (en) 1980-11-11
JPS55130042A (en) 1980-10-08
GB2044991A (en) 1980-10-22
GB2044991B (en) 1983-03-09
FR2451099B1 (fr) 1983-07-08

Similar Documents

Publication Publication Date Title
FR2451099A1 (fr) Tube electronique a emission secondaire reduite
HK84091A (en) Semiconductor device for producing an electron beam
SE7904985L (sv) Cylinder av aluminiumlegering och sett att framstella densamma
FR2425143A2 (fr) Source d'electrons a grille de commande a suppression de l'emission thermoionique de la grille
GB1247502A (en) Improvements in or relating to glow-discharge apparatus for spectral and/or absorption analysis
JPS57205935A (en) Electron gun
FR2458140A1 (fr) Ensemble collecteur isole pour tubes de puissance et tube comportant un tel collecteur
FR2399123A1 (fr) Tube cathodique
GB1012499A (en) Improvements in or relating to field ion microscopes
GB735463A (en) Improvements in or relating to electric discharge devices
JPS53135564A (en) Thermal cathode and its manufacture
KR840002578A (ko) 음극선관 형광면의 형성방법
FR2363882A1 (fr) Analyseur ionique a emission secondaire muni d'un canon a electrons pour l'analyse des isolants
JPS5335363A (en) Field radiation type cathode
SU540306A1 (ru) Коллектор электровакуумного прибора
KR880008388A (ko) 음극 선관
GB1201172A (en) Microwave tubes and methods of fixing lossy coatings therein
JPS56716A (en) Slot array antenna
JPS52127151A (en) Electron ray indicator tube
JPS5391563A (en) Manufacture of unitized electron gun
GB1140117A (en) Improvements relating to brass wind instruments
GB974153A (en) Improvements in or relating to travelling wave tubes
GB732335A (en) Improvements in or relating to x-ray tubes
Andreen Electron scattering experiments using an intermediate image beta-ray spectrometer
JPS5338966A (en) Magnetron

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse