GB1301478A - - Google Patents

Info

Publication number
GB1301478A
GB1301478A GB1301478DA GB1301478A GB 1301478 A GB1301478 A GB 1301478A GB 1301478D A GB1301478D A GB 1301478DA GB 1301478 A GB1301478 A GB 1301478A
Authority
GB
United Kingdom
Prior art keywords
cathode
welding
annular
anode
tubes
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
Other languages
English (en)
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 filed Critical
Publication of GB1301478A publication Critical patent/GB1301478A/en
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
    • H01J37/077—Electron guns using discharge in gases or vapours as electron sources
    • 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
    • H01J37/073—Electron guns using field emission, photo emission, or secondary emission electron sources

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Welding Or Cutting Using Electron Beams (AREA)
GB1301478D 1969-09-25 1969-09-25 Expired GB1301478A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4724669 1969-09-25

Publications (1)

Publication Number Publication Date
GB1301478A true GB1301478A (enrdf_load_stackoverflow) 1972-12-29

Family

ID=10444290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1301478D Expired GB1301478A (enrdf_load_stackoverflow) 1969-09-25 1969-09-25

Country Status (1)

Country Link
GB (1) GB1301478A (enrdf_load_stackoverflow)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee