GB1440037A - Electron multipliers - Google Patents

Electron multipliers

Info

Publication number
GB1440037A
GB1440037A GB1631474A GB1631474A GB1440037A GB 1440037 A GB1440037 A GB 1440037A GB 1631474 A GB1631474 A GB 1631474A GB 1631474 A GB1631474 A GB 1631474A GB 1440037 A GB1440037 A GB 1440037A
Authority
GB
United Kingdom
Prior art keywords
glass
coating
percentages
channels
channel
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
GB1631474A
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.)
Philips Components Ltd
Original Assignee
Mullard 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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB1631474A priority Critical patent/GB1440037A/en
Publication of GB1440037A publication Critical patent/GB1440037A/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
    • H01J43/24—Dynodes having potential gradient along their surfaces

Abstract

1440037 Glass compositions; coating with glass MULLARD Ltd 11 April 1974 16314/74 Addition to 1417643 Heading C1M [Also in Division H1] Channel multiplier fabrication includes etching conical channels in a photosensitive glass of composition in wt. percentages SiO 2 81À5; Li 2 O 12À0; K 2 O 3À5 and Al 2 O 3 3À0. A coating glass in wt. percentages of B 2 O 3 22À2; PbO 55À0 and Bi 2 O 3 22À8 and with expansion characteristics matching that of the channel glass for coating the channels was melted at 800‹ C. in an alumina crucible and ground to approx. 10 Ám. particle size. Subsequent reduction in hydrogen produces a slightly conductive surface. Powder is settled from an acetone suspension producing a glaze after slow heating to 590‹ C. The film thickness may be 10 to 15 Ám. on a surface with 20 Ám. wide etched pits.
GB1631474A 1974-04-11 1974-04-11 Electron multipliers Expired GB1440037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1631474A GB1440037A (en) 1974-04-11 1974-04-11 Electron multipliers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1631474A GB1440037A (en) 1974-04-11 1974-04-11 Electron multipliers

Publications (1)

Publication Number Publication Date
GB1440037A true GB1440037A (en) 1976-06-23

Family

ID=10075066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1631474A Expired GB1440037A (en) 1974-04-11 1974-04-11 Electron multipliers

Country Status (1)

Country Link
GB (1) GB1440037A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0137954A1 (en) * 1983-08-18 1985-04-24 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Channel secondary electron multiplier
US4577133A (en) * 1983-10-27 1986-03-18 Wilson Ronald E Flat panel display and method of manufacture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0137954A1 (en) * 1983-08-18 1985-04-24 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Channel secondary electron multiplier
US4652788A (en) * 1983-08-18 1987-03-24 Max-Planck-Gesellschaft Zur Foerderung Channel secondary electron multiplier
US4577133A (en) * 1983-10-27 1986-03-18 Wilson Ronald E Flat panel display and method of manufacture

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee