GB478613A - Improvements in or relating to secondary emission electron multipliers - Google Patents

Improvements in or relating to secondary emission electron multipliers

Info

Publication number
GB478613A
GB478613A GB3068336A GB3068336A GB478613A GB 478613 A GB478613 A GB 478613A GB 3068336 A GB3068336 A GB 3068336A GB 3068336 A GB3068336 A GB 3068336A GB 478613 A GB478613 A GB 478613A
Authority
GB
United Kingdom
Prior art keywords
accelerating
grid
electrons
electrode
primary
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
GB3068336A
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 GB3068336A priority Critical patent/GB478613A/en
Publication of GB478613A publication Critical patent/GB478613A/en
Expired 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
    • H01J43/08—Cathode arrangements

Landscapes

  • X-Ray Techniques (AREA)

Abstract

478,613. Electron multipliers. GENERAL ELECTRIC CO., Ltd., and ALDOUS, W. H. Nov. 10, 1936, No. 30683. Drawings to Specification. [Class 39 (i)] In a multiplier wherein the primary emission is from a thermionic cathode and is modulated by a control grid and accelerated by a grid-like electrode and wherein the electrons move in crossed electric and magnetic fields, the accelerating electrode is so constructed and biassed that a substantial part of the electrons leaving it are secondary electrons ejected by the primary beam. The control and accelerating grids may surround the cathode, and a flattened portion of the accelerating grid may be in the plane of the secondary cathodes. Primary electrons missing the accelerating grid may fall upon the first potential plate or the second or a later secondary electrode.
GB3068336A 1936-11-10 1936-11-10 Improvements in or relating to secondary emission electron multipliers Expired GB478613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3068336A GB478613A (en) 1936-11-10 1936-11-10 Improvements in or relating to secondary emission electron multipliers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3068336A GB478613A (en) 1936-11-10 1936-11-10 Improvements in or relating to secondary emission electron multipliers

Publications (1)

Publication Number Publication Date
GB478613A true GB478613A (en) 1938-01-21

Family

ID=10311486

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3068336A Expired GB478613A (en) 1936-11-10 1936-11-10 Improvements in or relating to secondary emission electron multipliers

Country Status (1)

Country Link
GB (1) GB478613A (en)

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