GB786988A - Improvements in or relating to electron tube arrangements including magnetic focussing systems - Google Patents

Improvements in or relating to electron tube arrangements including magnetic focussing systems

Info

Publication number
GB786988A
GB786988A GB27091/55A GB2709155A GB786988A GB 786988 A GB786988 A GB 786988A GB 27091/55 A GB27091/55 A GB 27091/55A GB 2709155 A GB2709155 A GB 2709155A GB 786988 A GB786988 A GB 786988A
Authority
GB
United Kingdom
Prior art keywords
discs
annular portion
reluctance
junction
external diameter
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
GB27091/55A
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Publication of GB786988A publication Critical patent/GB786988A/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
    • 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

  • Microwave Tubes (AREA)
  • Particle Accelerators (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
GB27091/55A 1954-09-22 1955-09-22 Improvements in or relating to electron tube arrangements including magnetic focussing systems Expired GB786988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES40943A DE1129240B (de) 1954-09-22 1954-09-22 Magnetisches Buendelungssystem zur gebuendelten Fuehrung der Elektronenstroemung einer Laufzeitroehre, insbesondere Wanderfeldroehre

Publications (1)

Publication Number Publication Date
GB786988A true GB786988A (en) 1957-11-27

Family

ID=7483807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27091/55A Expired GB786988A (en) 1954-09-22 1955-09-22 Improvements in or relating to electron tube arrangements including magnetic focussing systems

Country Status (5)

Country Link
US (1) US2844750A (enrdf_load_stackoverflow)
DE (1) DE1129240B (enrdf_load_stackoverflow)
FR (1) FR1131008A (enrdf_load_stackoverflow)
GB (1) GB786988A (enrdf_load_stackoverflow)
NL (1) NL200488A (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL210816A (enrdf_load_stackoverflow) * 1955-09-22
US2945153A (en) * 1956-08-31 1960-07-12 Rca Corp Electron beam tube
US3007076A (en) * 1957-05-03 1961-10-31 Itt Traveling wave electron discharge device
NL218874A (enrdf_load_stackoverflow) * 1957-07-11
US2966609A (en) * 1957-11-22 1960-12-27 Gen Electric Magnetic structures for high frequency energy interchange apparatus
US3027484A (en) * 1958-03-29 1962-03-27 Kobe Kogyo Kabushiki Kaisha Periodic magnetic focussing system for travelling wave tubes
US2961562A (en) * 1958-05-05 1960-11-22 Gen Electric Oscillation suppression in high voltage electron guns
DE1276217B (de) * 1958-06-25 1968-08-29 Siemens Ag Elektronenstrahlroehre mit Geschwindigkeitsmodulation, insbesondere Lauffeldroehre
US3155866A (en) * 1961-03-14 1964-11-03 Bell Telephone Labor Inc Magnetic focusing structure for traveling wave tubes
DE1277450B (de) * 1962-09-22 1968-09-12 Telefunken Patent Permanentmagnetisches Fokussierungssystem zur gebuendelten Fuehrung des Elektronenstrahles einer Wanderfeldroehre

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE689388C (de) * 1934-07-30 1940-03-19 Lorenz Akt Ges C Anordnung zur Ablenkung des Kathodenstrahls in Braunschen Roehren
GB494839A (en) * 1937-05-01 1938-11-01 British Thomson Houston Co Ltd Improvements in and relating to cathode ray apparatus
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
DE973258C (de) * 1938-03-08 1959-12-31 Siemens Ag Magnetische Polschuhlinse kleiner Brennweite fuer elektronenoptische Vergroesserungen in Elektronenmikroskopen
US2403529A (en) * 1942-04-30 1946-07-09 Rca Corp Electron microscope
US2619607A (en) * 1951-03-10 1952-11-25 Glaser Steers Corp Internal focusing device
DE893990C (de) * 1951-10-02 1953-10-22 Telefunken Gmbh Fokalisator fuer Lauffeldroehren
BE516533A (enrdf_load_stackoverflow) * 1951-12-29
DE1098625B (de) 1953-11-13 1961-02-02 Siemens Ag Magnetisches Buendelungssystem zur gebuendelten Fuehrung einer (mehrerer) Elektronenstroemung (en) mittels eines homogenen Magnetfeldes laengs einer groesseren Wegstrecke, insbesondere fuer Wanderfeldroehren

Also Published As

Publication number Publication date
US2844750A (en) 1958-07-22
DE1129240B (de) 1962-05-10
NL200488A (enrdf_load_stackoverflow)
FR1131008A (fr) 1957-02-14

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