GB492055A - Improvements in secondary emission electron multipliers - Google Patents

Improvements in secondary emission electron multipliers

Info

Publication number
GB492055A
GB492055A GB973237A GB973237A GB492055A GB 492055 A GB492055 A GB 492055A GB 973237 A GB973237 A GB 973237A GB 973237 A GB973237 A GB 973237A GB 492055 A GB492055 A GB 492055A
Authority
GB
United Kingdom
Prior art keywords
emission electron
secondary emission
electron multipliers
multipliers
specifications
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
GB973237A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB973237A priority Critical patent/GB492055A/en
Publication of GB492055A publication Critical patent/GB492055A/en
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 Tubes For Measurement (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

In a multi-stage secondary emission electron multiplier, an anode and plates which provide the electric field are formed of a copper-nickel alloy. Specifications 345,375 and 492,059, [both in Group XL], are referred to.
GB973237A 1937-04-06 1937-04-06 Improvements in secondary emission electron multipliers Expired GB492055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB973237A GB492055A (en) 1937-04-06 1937-04-06 Improvements in secondary emission electron multipliers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB973237A GB492055A (en) 1937-04-06 1937-04-06 Improvements in secondary emission electron multipliers

Publications (1)

Publication Number Publication Date
GB492055A true GB492055A (en) 1938-09-14

Family

ID=9877700

Family Applications (1)

Application Number Title Priority Date Filing Date
GB973237A Expired GB492055A (en) 1937-04-06 1937-04-06 Improvements in secondary emission electron multipliers

Country Status (1)

Country Link
GB (1) GB492055A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750071C (en) * 1939-06-21 1944-12-12 Process for the production of electron multipliers with electrodes of different secondary emissivity

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750071C (en) * 1939-06-21 1944-12-12 Process for the production of electron multipliers with electrodes of different secondary emissivity

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