GB999244A - Improvements relating to electron multipliers - Google Patents

Improvements relating to electron multipliers

Info

Publication number
GB999244A
GB999244A GB572061A GB572061A GB999244A GB 999244 A GB999244 A GB 999244A GB 572061 A GB572061 A GB 572061A GB 572061 A GB572061 A GB 572061A GB 999244 A GB999244 A GB 999244A
Authority
GB
United Kingdom
Prior art keywords
members
dynode
dynodes
grooves
feb
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
GB572061A
Inventor
Ernest Exley Thomson
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB572061A priority Critical patent/GB999244A/en
Publication of GB999244A publication Critical patent/GB999244A/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
    • H01J43/22—Dynodes consisting of electron-permeable material, e.g. foil, grid, tube, venetian blind

Landscapes

  • Particle Accelerators (AREA)

Abstract

999,244. Electron multipliers. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 8, 1962 [Feb. 16, 1961], No. 5720/61. Heading H1D. In an electron multiplier, the dynodes are supported by spaced, insulating members 4, 5, Fig. 1, having facing surfaces each provided with one groove 8 for each dynode. As shown, in a photo-electron multiplier, the ends of fused glass members 4, 5 project into a cathode screen 9 and are secured in position by wires 14, 15 lying in grooves 6, 7, and welded to plates 10, 11 of screen 9. At their lower ends, members 4, 5 are connected by a transverse rod 16. Ten dynodes 3, Fig. 2, are then slid between members 4, 5, adjacent dynodes being inserted from opposite ends. Each dynode has lateral projections 19 at one end and lugs at its firstinserted end which are turned down to secure the dynode in position. A grid anode and a plate dynode are supported in the last two grooves of each member 4, 5. The outer surfaces of members 4, 5 may be formed with ribs to engage the envelope, and with grooves to house the electrode leads. The dynodes 3 may have metal meshes extending thereover. The photomultiplier may be ¢-inch in diameter and 2 inches or less in length.
GB572061A 1961-02-16 1961-02-16 Improvements relating to electron multipliers Expired GB999244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB572061A GB999244A (en) 1961-02-16 1961-02-16 Improvements relating to electron multipliers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB572061A GB999244A (en) 1961-02-16 1961-02-16 Improvements relating to electron multipliers

Publications (1)

Publication Number Publication Date
GB999244A true GB999244A (en) 1965-07-21

Family

ID=9801370

Family Applications (1)

Application Number Title Priority Date Filing Date
GB572061A Expired GB999244A (en) 1961-02-16 1961-02-16 Improvements relating to electron multipliers

Country Status (1)

Country Link
GB (1) GB999244A (en)

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