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EP0204457A3 - Thyratrons - Google Patents

Thyratrons Download PDF

Info

Publication number
EP0204457A3
EP0204457A3 EP86303782A EP86303782A EP0204457A3 EP 0204457 A3 EP0204457 A3 EP 0204457A3 EP 86303782 A EP86303782 A EP 86303782A EP 86303782 A EP86303782 A EP 86303782A EP 0204457 A3 EP0204457 A3 EP 0204457A3
Authority
EP
European Patent Office
Prior art keywords
thyratron
volume
anode
conduction
plasma
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.)
Withdrawn
Application number
EP86303782A
Other languages
German (de)
French (fr)
Other versions
EP0204457A2 (en
Inventor
Hugh Menown
Leslie John Kettle
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.)
Teledyne UK Ltd
Original Assignee
English Electric Valve Co 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 English Electric Valve Co Ltd filed Critical English Electric Valve Co Ltd
Publication of EP0204457A2 publication Critical patent/EP0204457A2/en
Publication of EP0204457A3 publication Critical patent/EP0204457A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/50—Thermionic-cathode tubes
    • H01J17/52—Thermionic-cathode tubes with one cathode and one anode
    • H01J17/54—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
    • H01J17/56—Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control

Landscapes

  • Plasma Technology (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

A thyratron which enables reverse current conduction has an anode 7 and an adjacent anode grid 9 which together enclose a volume 11. A potential difference is applied between the anode 7 and anode grid 9 such that on forward conduction of the thyratron the charge density of plasma in the volume 11 is increased and when forward conduction of the thyratron stops, persists for some time in that space. On reverse conduction, the plasma contained within the volume 11 acts as a cathodic medium.
In another mode plasma may be created in volume 11 prior to the thyratron becoming conducting.
EP86303782A 1985-06-07 1986-05-19 Thyratrons Withdrawn EP0204457A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8514487 1985-06-07
GB858514487A GB8514487D0 (en) 1985-06-07 1985-06-07 Thyratrons

Publications (2)

Publication Number Publication Date
EP0204457A2 EP0204457A2 (en) 1986-12-10
EP0204457A3 true EP0204457A3 (en) 1989-03-08

Family

ID=10580375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86303782A Withdrawn EP0204457A3 (en) 1985-06-07 1986-05-19 Thyratrons

Country Status (3)

Country Link
EP (1) EP0204457A3 (en)
JP (1) JPS622429A (en)
GB (2) GB8514487D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0325833A (en) * 1989-06-22 1991-02-04 Hamamatsu Photonics Kk Heat cathode grid control electric discharge tube
US5545947A (en) * 1994-08-08 1996-08-13 Litton Systems, Inc. Multiple surface high voltage structure for a gas discharge closing switch
US5994850A (en) * 1995-09-08 1999-11-30 Eev Limited Switching arrangements wherein a cylindrical trigger electrode is arranged around a gap between an anode and cathode for establishing a discharge therebetween
US8983685B2 (en) * 2010-07-30 2015-03-17 Deere & Company System and method for moving-base RTK measurements

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898518A (en) * 1973-04-09 1975-08-05 English Electric Valve Co Ltd Gas filled thyratron type switching discharge tubes
GB2065962A (en) * 1979-12-21 1981-07-01 English Electric Valve Co Ltd Improvements in or Relating to Thyratrons
US4356426A (en) * 1979-05-15 1982-10-26 English Electric Valve Company Limited Thyratron having anode with low work function material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327166A (en) * 1964-08-04 1967-06-20 Itt Thyratron with auxiliary electrode

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898518A (en) * 1973-04-09 1975-08-05 English Electric Valve Co Ltd Gas filled thyratron type switching discharge tubes
US4356426A (en) * 1979-05-15 1982-10-26 English Electric Valve Company Limited Thyratron having anode with low work function material
GB2065962A (en) * 1979-12-21 1981-07-01 English Electric Valve Co Ltd Improvements in or Relating to Thyratrons

Also Published As

Publication number Publication date
GB8514487D0 (en) 1985-07-10
EP0204457A2 (en) 1986-12-10
JPS622429A (en) 1987-01-08
GB8611964D0 (en) 1986-06-25
GB2176934A (en) 1987-01-07

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Effective date: 19881201

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Inventor name: KETTLE, LESLIE JOHN

Inventor name: MENOWN, HUGH