DK103681C - Permanentmagnetsystem til styring af en elektronstråle over en længere vejstrækning, navnlig til vandrebølgerør. - Google Patents

Permanentmagnetsystem til styring af en elektronstråle over en længere vejstrækning, navnlig til vandrebølgerør.

Info

Publication number
DK103681C
DK103681C DK349163AA DK349163A DK103681C DK 103681 C DK103681 C DK 103681C DK 349163A A DK349163A A DK 349163AA DK 349163 A DK349163 A DK 349163A DK 103681 C DK103681 C DK 103681C
Authority
DK
Denmark
Prior art keywords
controlling
permanent magnet
electron beam
traveling wave
magnet system
Prior art date
Application number
DK349163AA
Other languages
Danish (da)
English (en)
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
Application granted granted Critical
Publication of DK103681C publication Critical patent/DK103681C/da

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Microwave Tubes (AREA)
  • Particle Accelerators (AREA)
DK349163AA 1962-10-04 1963-07-22 Permanentmagnetsystem til styring af en elektronstråle over en længere vejstrækning, navnlig til vandrebølgerør. DK103681C (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES81889A DE1298646B (de) 1962-10-04 1962-10-04 Permanentmagnetisches Fokussierungssystem zur Erzeugung eines wenigstens angenaehert homogenen Magnetfeldes fuer die gebuendelte Fuehrung eines Elektronenstrahls ueber eine groessere Wegstrecke, insbesondere fuer Wanderfeldroehren

Publications (1)

Publication Number Publication Date
DK103681C true DK103681C (da) 1966-02-07

Family

ID=7509982

Family Applications (1)

Application Number Title Priority Date Filing Date
DK349163AA DK103681C (da) 1962-10-04 1963-07-22 Permanentmagnetsystem til styring af en elektronstråle over en længere vejstrækning, navnlig til vandrebølgerør.

Country Status (6)

Country Link
US (1) US3237059A (h)
DE (1) DE1298646B (h)
DK (1) DK103681C (h)
GB (1) GB1039576A (h)
NL (2) NL298777A (h)
SE (1) SE319241B (h)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1491444B2 (de) * 1965-01-26 1972-04-06 Siemens AG, 1000 Berlin u 8000 München Permanentmagnetsystem zur erzeugung eines im wesentlichen homogenen magnetfeldes fuer die gebuendelte fuehrung eines elektronenstrahls ueber eine laengere wegstrecke, insbesondere fuer wanderfeldroehren
US3686527A (en) * 1969-12-12 1972-08-22 Sanders Associates Inc High-speed synthesized field focus coil
WO1981002221A1 (en) * 1980-01-28 1981-08-06 V Pasmannik Reversible periodical magneto-focusing system
US4720692A (en) * 1984-10-24 1988-01-19 The United States Of America As Represented By The Secretary Of The Air Force Long, narrow, uniform magnetic field apparatus and method
US4647887A (en) * 1984-12-24 1987-03-03 The United States Of America As Represented By The Secretary Of The Army Lightweight cladding for magnetic circuits
US4614930A (en) * 1985-03-25 1986-09-30 General Electric Company Radially magnetized cylindrical magnet
DE3518852A1 (de) * 1985-05-23 1986-11-27 Siemens AG, 1000 Berlin und 8000 München Magnet eines kernspintomographen
US4654618A (en) * 1986-05-01 1987-03-31 The United States Of America As Represented By The Secretary Of The Army Confinement of kOe magnetic fields to very small areas in miniature devices
US4658228A (en) * 1986-05-01 1987-04-14 The United States Of America As Represented By The Secreatry Of The Army Confinement of longitudinal, axially symmetric, magnetic fields to annular regions with permanent magnets
US4701737A (en) * 1986-05-30 1987-10-20 The United States Of America As Represented By The Secretary Of The Army Leakage-free, linearly varying axial permanent magnet field source
FR2605451B1 (fr) * 1986-10-17 1993-12-24 Thomson Cgr Aimant permanent cylindrique a champ induit longitudinal
FR2605452B1 (fr) * 1986-10-17 1988-12-02 Thomson Cgr Aimant permanent spherique a acces equatorial
FR2605450B1 (fr) * 1986-10-17 1988-12-02 Thomson Cgr Aimant permanent cylindrique pour produire un champ d'induction uniforme et transverse
US4953555A (en) * 1987-10-20 1990-09-04 The United States Of Americas As Represented By The Secretary Of The Army Permanent magnet structure for a nuclear magnetic resonance imager for medical diagnostics
JP2826895B2 (ja) * 1990-09-19 1998-11-18 ティーディーケイ株式会社 永久磁石磁気回路
US5319339A (en) * 1993-03-08 1994-06-07 The United States Of America As Represented By The Secretary Of The Army Tubular structure having transverse magnetic field with gradient
DE4424230C2 (de) * 1994-07-09 1996-08-14 Karlsruhe Forschzent Magnetsystem für Gyrotrons
US5576679A (en) * 1994-10-25 1996-11-19 Shin-Etsu Chemical Co., Ltd. Cylindrical permanent magnet unit suitable for gyrotron
US5786741A (en) * 1995-12-21 1998-07-28 Aura Systems, Inc. Polygon magnet structure for voice coil actuator
US5929732A (en) * 1997-04-17 1999-07-27 Lockheed Martin Corporation Apparatus and method for amplifying a magnetic beam
KR100682661B1 (ko) * 2005-09-13 2007-02-15 엘지전자 주식회사 모터 및 상기 모터를 포함하는 세탁기
US8179220B2 (en) 2008-05-28 2012-05-15 Otto Voegeli Confined field magnet system and method
CN105047355A (zh) * 2015-08-12 2015-11-11 中国科学院电工研究所 一种用于聚焦和引导电子束的圆筒形永磁体系统
CN112912748B (zh) * 2018-09-03 2024-12-20 新加坡科技设计大学 永磁体系统及其形成方法
WO2020109896A1 (en) * 2018-11-29 2020-06-04 Epsitau Ltd. Lightweight asymmetric magnet arrays with theta magnet rings
RU206633U1 (ru) * 2020-01-28 2021-09-20 Акционерное общество "Научно-производственное предприятие "Исток" имени А.И. Шокина" (АО "НПП "Исток" им. Шокина") Магнитная фокусирующая система

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE725473C (de) * 1935-07-23 1942-10-08 Fernseh Gmbh Elektronensammelspule
FR1105964A (fr) * 1954-06-03 1955-12-09 Csf Perfectionnement aux aimants permanents
NL214979A (h) * 1956-03-01
NL107303C (h) * 1957-07-11

Also Published As

Publication number Publication date
US3237059A (en) 1966-02-22
DE1298646B (de) 1969-07-03
NL298777A (h) 1900-01-01
NL133615C (h)
GB1039576A (en) 1966-08-17
SE319241B (h) 1970-01-12

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