FR2397714A1 - Electron gun for electron-beam heating - has linear thermionic cathode and two part focussing electrode with flat current conducting springs attached - Google Patents

Electron gun for electron-beam heating - has linear thermionic cathode and two part focussing electrode with flat current conducting springs attached

Info

Publication number
FR2397714A1
FR2397714A1 FR7721262A FR7721262A FR2397714A1 FR 2397714 A1 FR2397714 A1 FR 2397714A1 FR 7721262 A FR7721262 A FR 7721262A FR 7721262 A FR7721262 A FR 7721262A FR 2397714 A1 FR2397714 A1 FR 2397714A1
Authority
FR
France
Prior art keywords
electron
focussing electrode
electron gun
springs attached
thermionic cathode
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.)
Granted
Application number
FR7721262A
Other languages
French (fr)
Other versions
FR2397714B1 (en
Inventor
Boris Alexeevich Movchan
Viktor Alexandrovich Timashov
Nikolai Vasilievich Chaika
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.)
Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr
Original Assignee
Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr
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 Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr filed Critical Institut Elektrosvarki Imeni E O Patona Akademii Nauk Ukrainskoi Ssr
Priority to FR7721262A priority Critical patent/FR2397714A1/en
Publication of FR2397714A1 publication Critical patent/FR2397714A1/en
Application granted granted Critical
Publication of FR2397714B1 publication Critical patent/FR2397714B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
    • H01J37/06—Electron sources; Electron guns
    • H01J37/065—Construction of guns or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
    • H01J37/06—Electron sources; Electron guns
    • H01J37/07—Eliminating deleterious effects due to thermal effects or electric or magnetic fields

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

The electron gun comprises a linear thermionic cathode having part of its emitting surface facing an accelerating anode, and the rest of the emitting surface separated by a gap from a cathode-adjacent focussing electrode. The focussing electrode is made of two portions spaced apart. On the opposite end surfaces of these portions is a pair of flat current-conducting springs whose other ends are connected to leads. The other end surfaces of these portions accommodate cathode holders and have a pair of flat springs attached to them, the other ends of the springs being connected to the insulator of the electron gun housing. The pairs of flat springs attached to different portions of the focussing electrode deflect towards each other.
FR7721262A 1977-07-11 1977-07-11 Electron gun for electron-beam heating - has linear thermionic cathode and two part focussing electrode with flat current conducting springs attached Granted FR2397714A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7721262A FR2397714A1 (en) 1977-07-11 1977-07-11 Electron gun for electron-beam heating - has linear thermionic cathode and two part focussing electrode with flat current conducting springs attached

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7721262A FR2397714A1 (en) 1977-07-11 1977-07-11 Electron gun for electron-beam heating - has linear thermionic cathode and two part focussing electrode with flat current conducting springs attached

Publications (2)

Publication Number Publication Date
FR2397714A1 true FR2397714A1 (en) 1979-02-09
FR2397714B1 FR2397714B1 (en) 1980-02-29

Family

ID=9193205

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721262A Granted FR2397714A1 (en) 1977-07-11 1977-07-11 Electron gun for electron-beam heating - has linear thermionic cathode and two part focussing electrode with flat current conducting springs attached

Country Status (1)

Country Link
FR (1) FR2397714A1 (en)

Also Published As

Publication number Publication date
FR2397714B1 (en) 1980-02-29

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Legal Events

Date Code Title Description
ST Notification of lapse