ES178875A1 - MEJORAS EN LOS PROCEDIMIENTOS PARA PREPARAR ELECTRODOS PARA EMISIoN SECUNDARIA - Google Patents

MEJORAS EN LOS PROCEDIMIENTOS PARA PREPARAR ELECTRODOS PARA EMISIoN SECUNDARIA

Info

Publication number
ES178875A1
ES178875A1 ES0178875A ES178875A ES178875A1 ES 178875 A1 ES178875 A1 ES 178875A1 ES 0178875 A ES0178875 A ES 0178875A ES 178875 A ES178875 A ES 178875A ES 178875 A1 ES178875 A1 ES 178875A1
Authority
ES
Spain
Prior art keywords
procedures
secondary emission
electrode
preparing electrodes
electronic
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
ES0178875A
Other languages
English (en)
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana 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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES178875A1 publication Critical patent/ES178875A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
    • H01J9/125—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/32—Secondary emission electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Cold Cathode And The Manufacture (AREA)
ES0178875A 1946-04-06 1947-07-11 MEJORAS EN LOS PROCEDIMIENTOS PARA PREPARAR ELECTRODOS PARA EMISIoN SECUNDARIA Expired ES178875A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US660106A US2586771A (en) 1946-04-06 1946-04-06 Process for making secondary emission electrodes

Publications (1)

Publication Number Publication Date
ES178875A1 true ES178875A1 (es) 1947-09-16

Family

ID=24648164

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0178875A Expired ES178875A1 (es) 1946-04-06 1947-07-11 MEJORAS EN LOS PROCEDIMIENTOS PARA PREPARAR ELECTRODOS PARA EMISIoN SECUNDARIA

Country Status (4)

Country Link
US (1) US2586771A (lv)
BE (1) BE474312A (lv)
ES (1) ES178875A1 (lv)
FR (1) FR956472A (lv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE519545A (lv) * 1952-05-01
US3713901A (en) * 1970-04-20 1973-01-30 Trw Inc Oxidation resistant refractory alloys
US4978885A (en) * 1989-03-02 1990-12-18 Galileo Electro-Optics Corporation Electron multipliers with reduced ion feedback
US6239549B1 (en) 1998-01-09 2001-05-29 Burle Technologies, Inc. Electron multiplier electron source and ionization source using it

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2237242A (en) * 1938-01-05 1941-04-01 Univ Illinois Phototube
FR845087A (fr) * 1938-04-22 1939-08-10 Radio Electr Soc Fr Cathodes à forte émission secondaire d'électrons
FR862488A (fr) * 1939-08-29 1941-03-07 Materiel Telephonique électrodes à émission électronique
GB559591A (en) * 1942-07-17 1944-02-25 Int Standard Electric Corp Improvements relating to secondary electron emissive electrodes

Also Published As

Publication number Publication date
FR956472A (lv) 1950-02-02
BE474312A (lv)
US2586771A (en) 1952-02-26

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