GB745521A - Improvements relating to electronic apparatus including photo-electric multiplier cells - Google Patents

Improvements relating to electronic apparatus including photo-electric multiplier cells

Info

Publication number
GB745521A
GB745521A GB2018852A GB2018852A GB745521A GB 745521 A GB745521 A GB 745521A GB 2018852 A GB2018852 A GB 2018852A GB 2018852 A GB2018852 A GB 2018852A GB 745521 A GB745521 A GB 745521A
Authority
GB
United Kingdom
Prior art keywords
dynodes
dynode
voltage
secondary electron
area
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
GB2018852A
Inventor
Sidney Rodda
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.)
Edison Swan Electric Co Ltd
Original Assignee
Edison Swan Electric Co Ltd
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 Edison Swan Electric Co Ltd filed Critical Edison Swan Electric Co Ltd
Priority to GB2018852A priority Critical patent/GB745521A/en
Publication of GB745521A publication Critical patent/GB745521A/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
    • H01J43/18—Electrode arrangements using essentially more than one dynode
    • H01J43/20—Dynodes consisting of sheet material, e.g. plane, bent

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

745,521. Discharge tubes. EDISON SWAN ELECTRIC CO., Ltd. May 21, 1953 [Aug. 11, 1952], No. 20188/52. Class 39 (1). A photo-electric multiplier cell of the kind comprising a plurality of secondary electron emissive dynodes D1-D9, Fig. 1, without auxiliary electrodes therebetween, connected respectively to stepped voltage stages 1-9, has one or more or all dynodes formed with a normal working area BC, Fig. 2, having a relatively high secondary electron emission and an area AB having a relatively low emission, and has the dynodes so positioned that in operation a voltage between a first dynode so formed and the succeeding dynode which is less than the normal working voltage causes the electrostatic field between said dynodes to deflect the incident electron beam to said first dynode towards the low emission area so as to reduce the secondary electron flow to the succeeding dynode and hence increase the voltage between the dynodes. The section AB of the dynode D8 can be coated with molybdenum or magnesium and the section BC can be coated with caesium treated antimony. Grid G, photocathode K and collector anode A are provided.
GB2018852A 1952-08-11 1952-08-11 Improvements relating to electronic apparatus including photo-electric multiplier cells Expired GB745521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2018852A GB745521A (en) 1952-08-11 1952-08-11 Improvements relating to electronic apparatus including photo-electric multiplier cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2018852A GB745521A (en) 1952-08-11 1952-08-11 Improvements relating to electronic apparatus including photo-electric multiplier cells

Publications (1)

Publication Number Publication Date
GB745521A true GB745521A (en) 1956-02-29

Family

ID=10141865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2018852A Expired GB745521A (en) 1952-08-11 1952-08-11 Improvements relating to electronic apparatus including photo-electric multiplier cells

Country Status (1)

Country Link
GB (1) GB745521A (en)

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