CA2011889A1 - Dispositif ameliore d'emission secondaire d'electrons - Google Patents

Dispositif ameliore d'emission secondaire d'electrons

Info

Publication number
CA2011889A1
CA2011889A1 CA2011889A CA2011889A CA2011889A1 CA 2011889 A1 CA2011889 A1 CA 2011889A1 CA 2011889 A CA2011889 A CA 2011889A CA 2011889 A CA2011889 A CA 2011889A CA 2011889 A1 CA2011889 A1 CA 2011889A1
Authority
CA
Canada
Prior art keywords
electrons
cathode
protuberances
secondary electron
electron emitter
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
CA2011889A
Other languages
English (en)
Other versions
CA2011889C (fr
Inventor
Gregory T. Schaeffer
John C. Cipolla
Guilford R. Macphail
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.)
Northrop Grumman Guidance and Electronics Co Inc
Original Assignee
Litton Systems 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 Litton Systems Inc filed Critical Litton Systems Inc
Publication of CA2011889A1 publication Critical patent/CA2011889A1/fr
Application granted granted Critical
Publication of CA2011889C publication Critical patent/CA2011889C/fr
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
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/02—Electron-emitting electrodes; Cathodes
    • H01J19/04—Thermionic cathodes
    • H01J19/14—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment

Landscapes

  • Cold Cathode And The Manufacture (AREA)
  • Microwave Amplifiers (AREA)
  • Microwave Tubes (AREA)
CA002011889A 1989-03-31 1990-03-09 Dispositif ameliore d'emission secondaire d'electrons Expired - Fee Related CA2011889C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/332,628 US4975656A (en) 1989-03-31 1989-03-31 Enhanced secondary electron emitter
US332,628 1989-03-31

Publications (2)

Publication Number Publication Date
CA2011889A1 true CA2011889A1 (fr) 1990-09-30
CA2011889C CA2011889C (fr) 1993-12-14

Family

ID=23299098

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002011889A Expired - Fee Related CA2011889C (fr) 1989-03-31 1990-03-09 Dispositif ameliore d'emission secondaire d'electrons

Country Status (4)

Country Link
US (1) US4975656A (fr)
CA (1) CA2011889C (fr)
FR (1) FR2645676B1 (fr)
GB (1) GB2231198B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5418427A (en) * 1992-05-28 1995-05-23 Litton Systems, Inc. Internally cooled forward wave crossed field amplifier anode vane
US5600207A (en) * 1992-05-28 1997-02-04 Litton Systems, Inc. Preferentially cooled forward wave crossed-field amplifier anode
US5412281A (en) * 1993-03-31 1995-05-02 Litton Systems, Inc. Phase smoothing cathode for reduced noise crossed-field amplifier
EP1698878A1 (fr) * 2005-03-04 2006-09-06 Inficon GmbH Configuration d'électrodes et appareil de mesure de pression

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL35461C (fr) * 1932-03-20
US2095337A (en) * 1934-11-14 1937-10-12 Everett P Loppacker Vacuum tube electrode
GB503211A (en) * 1936-07-04 1939-04-03 Zeiss Ikon Ag Improvements in or relating to secondary electron multipliers
GB504927A (en) * 1937-10-28 1939-04-28 James Dwyer Mcgee Improvements in or relating to electron permeable electrodes
US2499506A (en) * 1944-09-11 1950-03-07 Gen Electric Electric discharge device and electrode therefor
GB751735A (en) * 1952-08-13 1956-07-04 Alberto Bagnulo Modulated electric arc for chemical reactions
US3096462A (en) * 1960-03-21 1963-07-02 Sfd Lab Inc High power electron discharge device
BE625855A (fr) * 1962-03-15
US3255422A (en) * 1962-08-07 1966-06-07 Sfd Lab Inc Pulsed crossed-field devices
NL130735C (fr) * 1965-08-16 1900-01-01
US3596131A (en) * 1969-05-29 1971-07-27 Varian Associates Cathode secondary emitter for crossed-field tubes
US3619709A (en) * 1970-07-06 1971-11-09 Ratheon Co Gridded crossed field traveling wave device
JPS5325632B2 (fr) * 1973-03-22 1978-07-27
CA1033461A (fr) * 1975-08-07 1978-06-20 Her Majesty In Right Of Canada As Represented By Atomic Energy Of Canada Limited Magnetron a ailettes a grande puissance avec jumelage double
JPS58813B2 (ja) * 1977-09-30 1983-01-08 株式会社日立製作所 電子管陰極及びその製造方法
SU888750A1 (ru) * 1980-07-09 1983-11-30 Харьковский Ордена Трудового Красного Знамени Государственный Университет Им.А.М.Горького Полый холодный катод
GB2148048A (en) * 1983-10-12 1985-05-22 English Electric Valve Co Ltd Photocathode for a crossed-field discharge tube
US4700109A (en) * 1984-10-01 1987-10-13 Litton Systems, Inc. Crossed-field amplifier
JPH0760641B2 (ja) * 1985-02-06 1995-06-28 新日本無線株式会社 マグネトロン用陰極
JPS62232831A (ja) * 1986-04-01 1987-10-13 Hamamatsu Photonics Kk 光電子または２次電子放射用陰極

Also Published As

Publication number Publication date
FR2645676A1 (fr) 1990-10-12
GB2231198B (en) 1994-04-27
US4975656A (en) 1990-12-04
GB2231198A (en) 1990-11-07
FR2645676B1 (fr) 1996-10-04
GB9005573D0 (en) 1990-05-09
CA2011889C (fr) 1993-12-14

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed