GB1368753A - Electron multiplers - Google Patents

Electron multiplers

Info

Publication number
GB1368753A
GB1368753A GB3791371A GB3791371A GB1368753A GB 1368753 A GB1368753 A GB 1368753A GB 3791371 A GB3791371 A GB 3791371A GB 3791371 A GB3791371 A GB 3791371A GB 1368753 A GB1368753 A GB 1368753A
Authority
GB
United Kingdom
Prior art keywords
channels
conductivity
multiplier
axis
parallel
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
GB3791371A
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 GB3791371A priority Critical patent/GB1368753A/en
Priority to NL7210393A priority patent/NL7210393A/xx
Priority to IT7269492A priority patent/IT974912B/en
Priority to SE7209955A priority patent/SE388720B/en
Priority to FR7227701A priority patent/FR2148155B1/fr
Priority to JP7277260A priority patent/JPS4826060A/ja
Priority to DE2237974A priority patent/DE2237974A1/en
Priority to US315097A priority patent/US3879626A/en
Publication of GB1368753A publication Critical patent/GB1368753A/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

Landscapes

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

Abstract

1368753 Electron multipliers MULLARD Ltd 19 May 1972 [12 Aug 1971] 37913/71 Heading H1D In an electron multiplier comprising a number of channels inclined at an angle, e.g. 13 degrees, to the axis of the multiplier, the conductivity of the surface of each channel is greatest in the region of maximum inclination and least in the region of small or zero inclination. In one example the channels are of square section with two sides inclined to the axis having high conductivity and secondary emission, and two sides parallel to the axis having a low conductivity so that they do not distort the equipotential lines which remain substantially parallel to the end surfaces of the multiplier. In a further example the channels are of hexagonal section with two sides parallel to the axis of low conductivity and the other four sides of high conductivity. Electrode processing.-A square section channel is formed from four parallel glass strips of either rectangular or mitred section and formed either of a single piece of glass or as a laminate of two different glasses. Opposed strips are identical, and adjacent strips may have a composition which is similar but differs in that the surface conductivity is very different after the material has been subjected to chemical reduction. A single channel may be drawn down, but preferably several are assembled and drawn down together to facilitate correct alignment. After producing a boule of parallel fibres, the boule is sliced at the required angle, the cores (if any) are removed, the conductive surfaces are provided in the channels (for example by chemical reduction), and input and output electrodes are provided on the faces. The multiplier may be used in an image converter or intensifier tube, a camera tube, or a display tube.
GB3791371A 1971-08-02 1972-05-19 Electron multiplers Expired GB1368753A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB3791371A GB1368753A (en) 1972-05-19 1972-05-19 Electron multiplers
NL7210393A NL7210393A (en) 1971-08-02 1972-07-27
IT7269492A IT974912B (en) 1971-08-02 1972-07-29 IMPROVEMENT TO INTENSIFIED IMAGE AND SIMILAR DEVICES
SE7209955A SE388720B (en) 1971-08-02 1972-07-31 ELECTRONIC CHANNEL AMPLIFIER DEVICE
FR7227701A FR2148155B1 (en) 1971-08-02 1972-08-01
JP7277260A JPS4826060A (en) 1971-08-02 1972-08-01
DE2237974A DE2237974A1 (en) 1971-08-02 1972-08-02 IMPROVEMENTS TO IMAGE AMPLIFIERS AND THE LIKE
US315097A US3879626A (en) 1972-05-19 1972-12-14 Channel electron multiplier having secondary emissive surfaces of different conductivities

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3791371A GB1368753A (en) 1972-05-19 1972-05-19 Electron multiplers

Publications (1)

Publication Number Publication Date
GB1368753A true GB1368753A (en) 1974-10-02

Family

ID=10399892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3791371A Expired GB1368753A (en) 1971-08-02 1972-05-19 Electron multiplers

Country Status (2)

Country Link
US (1) US3879626A (en)
GB (1) GB1368753A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8786168B2 (en) 2012-02-29 2014-07-22 Photek Limited Microchannel plate for electron multiplier

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015159A (en) * 1975-09-15 1977-03-29 Bell Telephone Laboratories, Incorporated Semiconductor integrated circuit transistor detector array for channel electron multiplier
US4021216A (en) * 1975-10-24 1977-05-03 International Telephone And Telegraph Corporation Method for making strip microchannel electron multiplier array
US4051403A (en) * 1976-08-10 1977-09-27 The United States Of America As Represented By The Secretary Of The Army Channel plate multiplier having higher secondary emission coefficient near input
US4117365A (en) * 1977-01-14 1978-09-26 General Electric Company Continous photocathode for x-ray radiography having two-dimensional array of apertures
NL178922C (en) * 1977-03-03 1986-06-02 Philips Nv IMAGE AMPLIFIER TUBE.
US4825118A (en) * 1985-09-06 1989-04-25 Hamamatsu Photonics Kabushiki Kaisha Electron multiplier device
JPS6286656A (en) * 1985-10-11 1987-04-21 Murata Mfg Co Ltd Manufacture of channel plate
FR2592523A1 (en) * 1985-12-31 1987-07-03 Hyperelec Sa HIGH EFFICIENCY COLLECTION MULTIPLIER ELEMENT
US4714861A (en) * 1986-10-01 1987-12-22 Galileo Electro-Optics Corp. Higher frequency microchannel plate
US5374864A (en) * 1989-08-14 1994-12-20 Detector Technology, Inc. Electron multiplier with increased-area channel
US5132586A (en) * 1991-04-04 1992-07-21 The United States Of America As Represented By The Secretary Of The Navy Microchannel electron source
US6492657B1 (en) 2000-01-27 2002-12-10 Burle Technologies, Inc. Integrated semiconductor microchannel plate and planar diode electron flux amplifier and collector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235765A (en) * 1962-04-13 1966-02-15 Bendix Corp Electron multiplier having an inclined field
US3488509A (en) * 1964-12-07 1970-01-06 Bendix Corp Particle acceleration having low electron gain
GB1164894A (en) * 1967-03-29 1969-09-24 Mullard Ltd Improvements in or relating to Image Intensifier Devices
US3735184A (en) * 1971-08-19 1973-05-22 Matsushita Electric Ind Co Ltd Continuous dynode channel type secondary electron multiplier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8786168B2 (en) 2012-02-29 2014-07-22 Photek Limited Microchannel plate for electron multiplier

Also Published As

Publication number Publication date
US3879626A (en) 1975-04-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee