FR1471925A - Canon à faisceau d'électrons - Google Patents

Canon à faisceau d'électrons

Info

Publication number
FR1471925A
FR1471925A FR54644A FR54644A FR1471925A FR 1471925 A FR1471925 A FR 1471925A FR 54644 A FR54644 A FR 54644A FR 54644 A FR54644 A FR 54644A FR 1471925 A FR1471925 A FR 1471925A
Authority
FR
France
Prior art keywords
electron beam
beam cannon
cannon
electron
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
FR54644A
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.)
United States Steel Corp
Original Assignee
United States Steel 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
Priority claimed from US442580A external-priority patent/US3333136A/en
Application filed by United States Steel Corp filed Critical United States Steel Corp
Priority to FR54644A priority Critical patent/FR1471925A/fr
Application granted granted Critical
Publication of FR1471925A publication Critical patent/FR1471925A/fr
Expired 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
    • H01J37/067—Replacing parts of guns; Mutual adjustment of electrodes
    • 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
    • H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
    • H01J37/305—Electron-beam or ion-beam tubes for localised treatment of objects for casting, melting, evaporating, or etching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
FR54644A 1965-03-25 1966-03-23 Canon à faisceau d'électrons Expired FR1471925A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR54644A FR1471925A (fr) 1965-03-25 1966-03-23 Canon à faisceau d'électrons

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US442580A US3333136A (en) 1965-03-25 1965-03-25 Electron-beam gun with adjustable filament baffle
FR54644A FR1471925A (fr) 1965-03-25 1966-03-23 Canon à faisceau d'électrons

Publications (1)

Publication Number Publication Date
FR1471925A true FR1471925A (fr) 1967-03-03

Family

ID=26169402

Family Applications (1)

Application Number Title Priority Date Filing Date
FR54644A Expired FR1471925A (fr) 1965-03-25 1966-03-23 Canon à faisceau d'électrons

Country Status (1)

Country Link
FR (1) FR1471925A (fr)

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