GB648261A - Improvements in ion generators - Google Patents

Improvements in ion generators

Info

Publication number
GB648261A
GB648261A GB14443/47A GB1444347A GB648261A GB 648261 A GB648261 A GB 648261A GB 14443/47 A GB14443/47 A GB 14443/47A GB 1444347 A GB1444347 A GB 1444347A GB 648261 A GB648261 A GB 648261A
Authority
GB
United Kingdom
Prior art keywords
ions
containing gas
outer electrode
enclosure containing
cylinder
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
GB14443/47A
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB648261A publication Critical patent/GB648261A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J27/00—Ion beam tubes
    • H01J27/02—Ion sources; Ion guns
    • H01J27/16—Ion sources; Ion guns using high-frequency excitation, e.g. microwave excitation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

648,261. Discharge apparatus. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. May 30, 1947, No. 14443. Convention date, June 17, 1946. [Class 39 (i)] An ion generator comprises in combination two coaxial electrodes placed in an enclosure containing gas at a low pressure, the outer electrode being of a metal having a high secondary electron emission and a high-tension, high-frequency voltage being applied between the two electrodes and means for extracting the ions formed in the en. closure. A metal cylinder 1, e.g. of tungsten, surrounds a thin rod 2, the whole being contained in an enclosure containing gas at pressure 10<SP>-7</SP>-10<SP>-6 </SP>mm. An alternating potential of frequency 100 megahertz is applied between the rod and the cylinder, the period being equal to the transit time of an electron leaving the outer electrode and returning thereto. A grid 4 at a slightly negative potential causes extraction of the ions. In a modification (not shown), the ions are extracted by an electronic lens of three diaphragms.
GB14443/47A 1946-06-17 1947-05-30 Improvements in ion generators Expired GB648261A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR929228T 1946-06-17

Publications (1)

Publication Number Publication Date
GB648261A true GB648261A (en) 1951-01-03

Family

ID=9442325

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14443/47A Expired GB648261A (en) 1946-06-17 1947-05-30 Improvements in ion generators

Country Status (3)

Country Link
US (1) US2530859A (en)
FR (1) FR929228A (en)
GB (1) GB648261A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2296369A (en) * 1994-12-22 1996-06-26 Secr Defence Radio frequency ion source

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1572367A (en) * 1968-04-12 1969-06-27
US5003226A (en) * 1989-11-16 1991-03-26 Avco Research Laboratories Plasma cathode

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL49158C (en) * 1936-05-29
US2285622A (en) * 1940-06-14 1942-06-09 Westinghouse Electric & Mfg Co Ion source
US2334356A (en) * 1941-05-28 1943-11-16 Rca Corp Vacuum gauge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2296369A (en) * 1994-12-22 1996-06-26 Secr Defence Radio frequency ion source

Also Published As

Publication number Publication date
FR929228A (en) 1947-12-19
US2530859A (en) 1950-11-21

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