GB1217477A - Improved photocathode - Google Patents

Improved photocathode

Info

Publication number
GB1217477A
GB1217477A GB442969A GB442969A GB1217477A GB 1217477 A GB1217477 A GB 1217477A GB 442969 A GB442969 A GB 442969A GB 442969 A GB442969 A GB 442969A GB 1217477 A GB1217477 A GB 1217477A
Authority
GB
United Kingdom
Prior art keywords
grid
glass
transparency
jan
photo
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
GB442969A
Other languages
English (en)
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of GB1217477A publication Critical patent/GB1217477A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/36Photoelectric screens; Charge-storage screens
    • H01J29/38Photoelectric screens; Charge-storage screens not using charge storage, e.g. photo-emissive screen, extended cathode
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02Main electrodes
    • H01J1/34Photo-emissive cathodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02Details
    • H01J40/04Electrodes
    • H01J40/06Photo-emissive cathodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00Electrodes common to discharge tubes
    • H01J2201/34Photoemissive electrodes
    • H01J2201/342Cathodes
    • H01J2201/3421Composition of the emitting surface
    • H01J2201/3426Alkaline metal compounds, e.g. Na-K-Sb

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
GB442969A 1968-01-31 1969-01-27 Improved photocathode Expired GB1217477A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR138071 1968-01-31

Publications (1)

Publication Number Publication Date
GB1217477A true GB1217477A (en) 1970-12-31

Family

ID=8645332

Family Applications (1)

Application Number Title Priority Date Filing Date
GB442969A Expired GB1217477A (en) 1968-01-31 1969-01-27 Improved photocathode

Country Status (4)

Country Link
DE (1) DE1904467A1 (enExample)
FR (1) FR1566316A (enExample)
GB (1) GB1217477A (enExample)
NL (1) NL6901416A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157884A (en) * 1981-11-30 1985-10-30 Thermo Electron Corp Photoemissive cathode for high current density photoelectron generators
WO2004112072A3 (en) * 2003-05-29 2008-04-03 Nova Scientific Inc Electron multipliers and radiation detectors

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7508791A (nl) * 1975-07-23 1977-01-25 Optische Ind De Oude Delft Nv Beeldversterkerbuis van het proximity focus type.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157884A (en) * 1981-11-30 1985-10-30 Thermo Electron Corp Photoemissive cathode for high current density photoelectron generators
WO2004112072A3 (en) * 2003-05-29 2008-04-03 Nova Scientific Inc Electron multipliers and radiation detectors
US7508131B2 (en) * 2003-05-29 2009-03-24 Nova Scientific, Inc. Electron multipliers and radiation detectors
US7990032B2 (en) 2003-05-29 2011-08-02 Nova Scientific, Inc. Electron multipliers and microchannel plates
US8221181B2 (en) 2003-05-29 2012-07-17 Nova Scientific, Inc. Electron multipliers and microchannel plates

Also Published As

Publication number Publication date
DE1904467A1 (de) 1969-08-28
FR1566316A (enExample) 1969-05-09
NL6901416A (enExample) 1969-08-04

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