[go: up one dir, main page]

FR1418392A - Periodic permanent magnet electron beam concentrating device for traveling wave tubes - Google Patents

Periodic permanent magnet electron beam concentrating device for traveling wave tubes

Info

Publication number
FR1418392A
FR1418392A FR995442A FR995442A FR1418392A FR 1418392 A FR1418392 A FR 1418392A FR 995442 A FR995442 A FR 995442A FR 995442 A FR995442 A FR 995442A FR 1418392 A FR1418392 A FR 1418392A
Authority
FR
France
Prior art keywords
permanent magnet
electron beam
traveling wave
concentrating device
wave tubes
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
FR995442A
Other languages
French (fr)
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.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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
Priority claimed from US347771A external-priority patent/US3324339A/en
Application filed by Hughes Aircraft Co filed Critical Hughes Aircraft Co
Priority to FR995442A priority Critical patent/FR1418392A/en
Application granted granted Critical
Publication of FR1418392A publication Critical patent/FR1418392A/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
FR995442A 1964-02-27 1964-11-18 Periodic permanent magnet electron beam concentrating device for traveling wave tubes Expired FR1418392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR995442A FR1418392A (en) 1964-02-27 1964-11-18 Periodic permanent magnet electron beam concentrating device for traveling wave tubes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US347771A US3324339A (en) 1964-02-27 1964-02-27 Periodic permanent magnet electron beam focusing arrangement for traveling-wave tubes having plural interaction cavities in bore of each annular magnet
FR995442A FR1418392A (en) 1964-02-27 1964-11-18 Periodic permanent magnet electron beam concentrating device for traveling wave tubes

Publications (1)

Publication Number Publication Date
FR1418392A true FR1418392A (en) 1965-11-19

Family

ID=26211224

Family Applications (1)

Application Number Title Priority Date Filing Date
FR995442A Expired FR1418392A (en) 1964-02-27 1964-11-18 Periodic permanent magnet electron beam concentrating device for traveling wave tubes

Country Status (1)

Country Link
FR (1) FR1418392A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037309A1 (en) * 1980-04-01 1981-10-07 Thomson-Csf Travelling-wave tube with coupled cavities and with periodic permanent magnet focussing, and amplifier unit with such a tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037309A1 (en) * 1980-04-01 1981-10-07 Thomson-Csf Travelling-wave tube with coupled cavities and with periodic permanent magnet focussing, and amplifier unit with such a tube

Similar Documents

Publication Publication Date Title
DK103681C (en) Permanent magnet system for controlling an electron beam over a longer distance, in particular for traveling wave tubes.
FR1456396A (en) Traveling wave amplifier tubes
FR1418392A (en) Periodic permanent magnet electron beam concentrating device for traveling wave tubes
FR1222013A (en) Magnetic focusing device for traveling wave tubes
FR1475013A (en) Adjustment device for permanent magnet structures
FR1372140A (en) Electron beam tube for frequency multiplication
FR1377728A (en) System of permanent magnets, especially for traveling wave tubes
FR1241269A (en) Magnetic field generating device for electron beam tube
FR1442922A (en) System with permanent magnets to guide an electron beam by concentrating them on a long path, more particularly for traveling wave tubes
FR1441259A (en) Traveling wave electron tube
FR1465311A (en) System of permanent magnets, in particular for traveling wave tubes
FR1471876A (en) Electron beam tube, in particular traveling wave tube
FR1531828A (en) Electron beam focusing device for shooting tube
FR1465312A (en) Improvements to permanent magnet systems, in particular for traveling wave tubes
FR1471751A (en) Traveling wave tube fitted with a permanent magnet system
FR1454217A (en) Electron beam tube, in particular traveling wave tube
FR1441197A (en) Device for magnetic concentration of the electron beam of a discharge tube
FR1451080A (en) Tube fixing device
FR1384154A (en) Vacuum collectors for traveling wave tubes with crossed fields
FR1472787A (en) High power traveling wave tube
CH377453A (en) Traveling wave tube
FR1389878A (en) System with permanent magnets to guide by concentrating on a long path the electron beam of an electric discharge tube more particularly for traveling wave tubes
FR1456305A (en) Device for separately adjusting the currents of several x-ray tubes
FR1514665A (en) Magnetically concentrated electron beam tube
FR1532932A (en) Magnetic deflection device for cathode ray tubes