FR2034770A1 - Electron multiplier - Google Patents

Electron multiplier

Info

Publication number
FR2034770A1
FR2034770A1 FR6923513A FR6923513A FR2034770A1 FR 2034770 A1 FR2034770 A1 FR 2034770A1 FR 6923513 A FR6923513 A FR 6923513A FR 6923513 A FR6923513 A FR 6923513A FR 2034770 A1 FR2034770 A1 FR 2034770A1
Authority
FR
France
Prior art keywords
tube
pref
electron multiplier
al2o3
influence
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.)
Withdrawn
Application number
FR6923513A
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to FR6923513A priority Critical patent/FR2034770A1/en
Publication of FR2034770A1 publication Critical patent/FR2034770A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/04—Electron multipliers
    • H01J43/06—Electrode arrangements
    • H01J43/18—Electrode arrangements using essentially more than one dynode
    • H01J43/24—Dynodes having potential gradient along their surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/32—Secondary-electron-emitting electrodes

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

The device consists of at least one tube of high internal resistance coated on the inside with a thin layer pref. of Al2O3 100 angstroms thick with a high coefficient of secondary emission and a high charge potential to prevent photo emission under the influence of visible light. Pref. the tube is of Pb glass, the Pb-content having been increased by superficial chemical reduction.
FR6923513A 1969-07-10 1969-07-10 Electron multiplier Withdrawn FR2034770A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6923513A FR2034770A1 (en) 1969-07-10 1969-07-10 Electron multiplier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6923513A FR2034770A1 (en) 1969-07-10 1969-07-10 Electron multiplier

Publications (1)

Publication Number Publication Date
FR2034770A1 true FR2034770A1 (en) 1970-12-18

Family

ID=9037263

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6923513A Withdrawn FR2034770A1 (en) 1969-07-10 1969-07-10 Electron multiplier

Country Status (1)

Country Link
FR (1) FR2034770A1 (en)

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Legal Events

Date Code Title Description
ST Notification of lapse