GB8801633D0 - Directly heated cathode - Google Patents

Directly heated cathode

Info

Publication number
GB8801633D0
GB8801633D0 GB888801633A GB8801633A GB8801633D0 GB 8801633 D0 GB8801633 D0 GB 8801633D0 GB 888801633 A GB888801633 A GB 888801633A GB 8801633 A GB8801633 A GB 8801633A GB 8801633 D0 GB8801633 D0 GB 8801633D0
Authority
GB
United Kingdom
Prior art keywords
directly heated
heated cathode
cathode
directly
heated
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Withdrawn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
GB888801633A
Other versions
GB2214705A (en
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
Priority to GB8801633A priority Critical patent/GB2214705A/en
Publication of GB8801633D0 publication Critical patent/GB8801633D0/en
Priority to EP89300425A priority patent/EP0326273A3/en
Priority to JP1017389A priority patent/JPH01281635A/en
Publication of GB2214705A publication Critical patent/GB2214705A/en
Withdrawn legal-status Critical Current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
    • H01J1/13—Solid thermionic cathodes
    • H01J1/15—Cathodes heated directly by an electric current
GB8801633A 1988-01-26 1988-01-26 Directly heated cathode Withdrawn GB2214705A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB8801633A GB2214705A (en) 1988-01-26 1988-01-26 Directly heated cathode
EP89300425A EP0326273A3 (en) 1988-01-26 1989-01-18 Directly heated cathodes
JP1017389A JPH01281635A (en) 1988-01-26 1989-01-26 Directly heated cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8801633A GB2214705A (en) 1988-01-26 1988-01-26 Directly heated cathode

Publications (2)

Publication Number Publication Date
GB8801633D0 true GB8801633D0 (en) 1988-02-24
GB2214705A GB2214705A (en) 1989-09-06

Family

ID=10630502

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8801633A Withdrawn GB2214705A (en) 1988-01-26 1988-01-26 Directly heated cathode

Country Status (3)

Country Link
EP (1) EP0326273A3 (en)
JP (1) JPH01281635A (en)
GB (1) GB2214705A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104620350B (en) * 2012-09-12 2017-02-15 株式会社岛津制作所 X-ray tube device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL14962C (en) * 1923-10-17
FR692167A (en) * 1930-01-28 1930-10-31 Thermally protected cathode
BE514838A (en) * 1951-10-15
US3461338A (en) * 1967-01-16 1969-08-12 Ibm Non-inductive filament configuration
FR1599106A (en) * 1968-11-29 1970-07-15
DE3369423D1 (en) * 1982-07-27 1987-02-26 Bbc Brown Boveri & Cie Electronic tube, particularly an emitter tube
US4473777A (en) * 1982-09-29 1984-09-25 The Perkin-Elmer Corporation Electron emitter assembly

Also Published As

Publication number Publication date
GB2214705A (en) 1989-09-06
EP0326273A3 (en) 1990-07-11
EP0326273A2 (en) 1989-08-02
JPH01281635A (en) 1989-11-13

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)