CH355530A - Magnet system for focusing at least one electron beam, in particular for traveling wave tubes - Google Patents

Magnet system for focusing at least one electron beam, in particular for traveling wave tubes

Info

Publication number
CH355530A
CH355530A CH355530DA CH355530A CH 355530 A CH355530 A CH 355530A CH 355530D A CH355530D A CH 355530DA CH 355530 A CH355530 A CH 355530A
Authority
CH
Switzerland
Prior art keywords
focusing
electron beam
traveling wave
magnet system
wave tubes
Prior art date
Application number
Other languages
German (de)
Inventor
Werner Dr Veith
Meyerer Paul
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Publication of CH355530A publication Critical patent/CH355530A/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
CH355530D 1956-03-01 1957-02-21 Magnet system for focusing at least one electron beam, in particular for traveling wave tubes CH355530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES47742A DE1076280B (en) 1956-03-01 1956-03-01 Permanent magnet system for the bundled guidance of at least one electron beam over a larger distance, especially for traveling wave tubes

Publications (1)

Publication Number Publication Date
CH355530A true CH355530A (en) 1961-07-15

Family

ID=7486537

Family Applications (1)

Application Number Title Priority Date Filing Date
CH355530D CH355530A (en) 1956-03-01 1957-02-21 Magnet system for focusing at least one electron beam, in particular for traveling wave tubes

Country Status (6)

Country Link
US (1) US2876373A (en)
CH (1) CH355530A (en)
DE (1) DE1076280B (en)
FR (1) FR1164780A (en)
GB (1) GB853061A (en)
NL (2) NL214979A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL107303C (en) * 1957-07-11
NL100798C (en) * 1958-03-12
NL98136C (en) * 1958-06-27
US3106659A (en) * 1959-03-24 1963-10-08 Kearfott Company Inc Microwave tube construction
US3265978A (en) * 1959-08-17 1966-08-09 Westinghouse Electric Corp D. c. pumped quadrupole parametric amplifier
US3183398A (en) * 1960-08-04 1965-05-11 Raytheon Co Beam focusing magnet
US3164742A (en) * 1960-12-27 1965-01-05 Gen Electric High frequency energy interchange device
DE1226217B (en) * 1961-04-19 1966-10-06 Telefunken Patent Permanent magnet arrangement for periodic focusing of an electron beam running inside a vacuum envelope
NL277862A (en) * 1961-05-02
DE1246891B (en) * 1962-02-23 1967-08-10 Telefunken Patent Magnetic focusing arrangement for the bundled guidance of an electron beam, especially for traveling wave tubes
NL133615C (en) * 1962-10-04
US3254273A (en) * 1963-10-31 1966-05-31 Radio Frequency Lab Inc Standard magnet
US5744910A (en) * 1993-04-02 1998-04-28 Litton Systems, Inc. Periodic permanent magnet focusing system for electron beam
WO2011007433A1 (en) * 2009-07-15 2011-01-20 パイオニア株式会社 Imaging device
CN108776129B (en) * 2018-07-06 2023-12-08 中国科学院西安光学精密机械研究所 Multifunctional annular magnet array laser plasma restraint device and application system thereof
CN119764144B (en) * 2024-12-27 2025-11-21 北京真空电子技术研究所(中国电子科技集团公司第十二研究所） Magnetic quadrupole periodic unit, focusing system and focusing array

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2157182A (en) * 1935-12-31 1939-05-09 Rca Corp Cathode ray deflecting device
US2102045A (en) * 1936-05-13 1937-12-14 Albert G Thomas Electron discharge tube
NL92251C (en) * 1948-10-01
US2801361A (en) * 1948-12-10 1957-07-30 Bell Telephone Labor Inc High frequency amplifier
BE516428A (en) * 1951-12-29
USRE25189E (en) * 1953-04-29 1962-06-19 cioffi
US2847607A (en) * 1953-04-29 1958-08-12 Bell Telephone Labor Inc Magnetic focusing system
US2812470A (en) * 1954-10-22 1957-11-05 Bell Telephone Labor Inc Periodic focusing in traveling wave tubes

Also Published As

Publication number Publication date
FR1164780A (en) 1958-10-14
DE1076280B (en) 1960-02-25
US2876373A (en) 1959-03-03
NL214979A (en)
GB853061A (en) 1960-11-02
NL99653C (en)

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