GB792020A - Improvements in or relating to the magnetic focusing of electron beams - Google Patents

Improvements in or relating to the magnetic focusing of electron beams

Info

Publication number
GB792020A
GB792020A GB27902/55A GB2790255A GB792020A GB 792020 A GB792020 A GB 792020A GB 27902/55 A GB27902/55 A GB 27902/55A GB 2790255 A GB2790255 A GB 2790255A GB 792020 A GB792020 A GB 792020A
Authority
GB
United Kingdom
Prior art keywords
relating
electron beam
arrangement
electron beams
spacing members
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.)
Expired
Application number
GB27902/55A
Other languages
English (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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB792020A publication Critical patent/GB792020A/en
Expired 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
    • 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

Landscapes

  • Microwave Tubes (AREA)
  • Particle Accelerators (AREA)
GB27902/55A 1954-10-04 1955-09-30 Improvements in or relating to the magnetic focusing of electron beams Expired GB792020A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB792020A true GB792020A (en) 1958-03-19

Family

ID=12392336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27902/55A Expired GB792020A (en) 1954-10-04 1955-09-30 Improvements in or relating to the magnetic focusing of electron beams

Country Status (5)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL237015A (xx) * 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

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE424327A (xx) * 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
US2431077A (en) * 1943-08-31 1947-11-18 Rca Corp Cathode-ray tube with revolving magnets and adjustable sleeve
US2442975A (en) * 1943-08-31 1948-06-08 Rca Corp Focusing system
BE521065A (xx) * 1952-07-01
US2741718A (en) * 1953-03-10 1956-04-10 Sperry Rand Corp High frequency apparatus
US2797360A (en) * 1953-03-26 1957-06-25 Int Standard Electric Corp Travelling wave amplifiers
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 (de) 1959-05-14
CH336511A (de) 1959-02-28
US2895066A (en) 1959-07-14
NL200862A (xx)

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