CH336511A - Device for focusing an electron beam - Google Patents

Device for focusing an electron beam

Info

Publication number
CH336511A
CH336511A CH336511DA CH336511A CH 336511 A CH336511 A CH 336511A CH 336511D A CH336511D A CH 336511DA CH 336511 A CH336511 A CH 336511A
Authority
CH
Switzerland
Prior art keywords
focusing
electron beam
electron
Prior art date
Application number
Other languages
German (de)
Inventor
Yasuda Susumu
Original Assignee
Standard Telephon & Radio Ag
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 Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH336511A publication Critical patent/CH336511A/en

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
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • H01J23/0873—Magnetic focusing arrangements with at least one axial-field reversal along the interaction space, e.g. P.P.M. focusing
CH336511D 1954-10-04 1955-09-28 Device for focusing an electron beam CH336511A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP336511X 1954-10-04

Publications (1)

Publication Number Publication Date
CH336511A true CH336511A (en) 1959-02-28

Family

ID=12392336

Family Applications (1)

Application Number Title Priority Date Filing Date
CH336511D CH336511A (en) 1954-10-04 1955-09-28 Device for focusing an electron beam

Country Status (5)

Country Link
US (1) US2895066A (en)
CH (1) CH336511A (en)
DE (1) DE1057244B (en)
GB (1) GB792020A (en)
NL (1) NL200862A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL100798C (en) * 1958-03-12
US3106659A (en) * 1959-03-24 1963-10-08 Kearfott Company Inc Microwave tube construction
US3061754A (en) * 1960-03-18 1962-10-30 Gen Precision Inc Temperature compensating element for a traveling wave tube periodic array
US3178602A (en) * 1960-12-30 1965-04-13 Gen Precision Inc Adjustable permanent magnet focusing array
DE1491388B1 (en) * 1964-12-10 1970-01-15 Philips Patentverwaltung Klystron, preferably high-performance multi-chamber klystron, with at least one permanent magnet system with adjustable magnetic auxiliary connections

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE424327A (en) * 1936-10-30
GB504802A (en) * 1937-11-01 1939-05-01 Frederick Hermes Nicoll Improvements in or relating to permanent magnet devices for producing axially symmetrical magnetic fields
US2442975A (en) * 1943-08-31 1948-06-08 Rca Corp Focusing system
US2431077A (en) * 1943-08-31 1947-11-18 Rca Corp Cathode-ray tube with revolving magnets and adjustable sleeve
BE521065A (en) * 1952-07-01
US2741718A (en) * 1953-03-10 1956-04-10 Sperry Rand Corp High frequency apparatus
GB755834A (en) * 1953-03-26 1956-08-29 Standard Telephones Cables Ltd Improvements in or relating to the coupling of a helix in a travelling wave tube or the like to a waveguide
US2812470A (en) * 1954-10-22 1957-11-05 Bell Telephone Labor Inc Periodic focusing in traveling wave tubes
US2790920A (en) * 1955-05-09 1957-04-30 Philco Corp Apparatus for control of electron beam cross section

Also Published As

Publication number Publication date
DE1057244B (en) 1959-05-14
US2895066A (en) 1959-07-14
NL200862A (en)
GB792020A (en) 1958-03-19

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