EP0353632A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Amorphous electron multiplier
Assignee: Yeda Research and Development Co Ltd
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Filing: 1989-07-27
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Granted: —
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Expires: 2009-07-27
Abstract
Abstract An electron multiplier including a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and apparatus for applying an electric field across the material. A cathode ray tube, and devices incorporating a cathode ray tube, such as televisions and oscilloscopes are also provided in accordance with the invention.
Inventors
- 👤 Zeev Vager
- 👤 Ron Naaman
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 03:38
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/32; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/24; H01J2231/00; H01J2231/12
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
29 words
An electron multiplier comprising: a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons; and means for applying an electric field across the material.
Claim 2
Dependent Claim
29 words
An electron multiplier comprising: a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons; and means for applying an electric field across the material.
Claim 3
Dependent Claim
21 words
An electron multiplier according to claim 1 and wherein said multi-layer arrangement of material comprises a collection of beads of glass.
Claim 4
Dependent Claim
22 words
An electron multiplier according to either of claims 1 and 2 and wherein said multi-layer arrangement comprises an amorphous arrangement of material.
Claim 5
Dependent Claim
20 words
An electron multiplier according to any of claims 1 - 3 and wherein said means for applying comprises electrode means.
Claim 6
Dependent Claim
18 words
An electron multiplier according to claim 4 and wherein said multi-layer arrangement is sintered onto the electrode means.
Claim 7
Dependent Claim
16 words
An electron multiplier according to claim 2 and wherein said collection of beads is amorphously packed.
Claim 8
Dependent Claim
30 words
An electron multiplier according to any of the preceding claims and wherein the material is in particulate form having a maximum dimension within the range of 1 to 1000 microns.
Claim 9
Dependent Claim
29 words
An electron multiplier according to any of the preceding claims and wherein the thickness of the arrangement is at least five particle diameters and up to approximately one centimeter.
Claim 10
Dependent Claim
24 words
An electron multiplier according to claim 2 and wherein the thickness of the collection is in the range of 5 - 30 bead diameters.
Claim 11
Dependent Claim
20 words
An electron multiplier according to any of the preceding claims and wherein the material comprises solid and generally spherical particles.
Claim 12
Dependent Claim
27 words
An electron multiplier according to any of the preceding claims and wherein said material has a surface conductivity of the order of tens to hundreds of megaohms.
Claim 13
Dependent Claim
21 words
An electron multiplier according to any of the preceding claims and wherein the material comprises beads formed of metal doped glass.
Claim 14
Dependent Claim
32 words
A non-planar electron multiplier comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and means for applying an electric field across the collection of beads.
Claim 15
Dependent Claim
32 words
A non-planar electron multiplier comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and means for applying an electric field across the collection of beads.
Claim 16
Dependent Claim
31 words
A spherical detector comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and means for applying an electric field across the arrangement of material.
Claim 17
Dependent Claim
31 words
A spherical detector comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and means for applying an electric field across the arrangement of material.
Claim 18
Dependent Claim
31 words
An active amplifier comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and means for applying an electric field across the arrangement of material.
Claim 19
Dependent Claim
31 words
An active amplifier comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and means for applying an electric field across the arrangement of material.
Claim 20
Dependent Claim
64 words
A cathode ray tube comprising: an electron emitter; an electron multiplier arranged to receive electrons from the emitter and comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and means for applying an electric field across the arrangement of material; and a phosphor screen arranged to be illuminated by the secondary electron emission from the electron multiplier.
Claim 21
Dependent Claim
64 words
A cathode ray tube comprising: an electron emitter; an electron multiplier arranged to receive electrons from the emitter and comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and means for applying an electric field across the arrangement of material; and a phosphor screen arranged to be illuminated by the secondary electron emission from the electron multiplier.
Claim 22
Dependent Claim
22 words
A television comprising: television signal receiving circuitry; an electron emitter operative to provide electron emission in accordance with a received television signal;
Claim 23
Dependent Claim
22 words
A television comprising: television signal receiving circuitry; an electron emitter operative to provide electron emission in accordance with a received television signal;
Claim 24
Dependent Claim
56 words
an electron multiplier arranged to receive electrons from the emitter and comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and means for applying an electric field across the arrangement of material; and a phosphor screen arranged to be illuminated by the secondary electron emission from the electron multiplier.
Claim 25
Dependent Claim
56 words
an electron multiplier arranged to receive electrons from the emitter and comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and means for applying an electric field across the arrangement of material; and a phosphor screen arranged to be illuminated by the secondary electron emission from the electron multiplier.
Claim 26
Dependent Claim
81 words
An oscilloscope comprising: signal generating circuitry; an electron emitter operative to provide electron emission in accordance with a signal generated by said signal generating circuitry; an electron multiplier arranged to receive electrons from the emitter and comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and means for applying an electric field across the arrangement of material; and a phosphor screen arranged to be illuminated by the secondary electron emission from the electron multiplier.
Claim 27
Dependent Claim
81 words
An oscilloscope comprising: signal generating circuitry; an electron emitter operative to provide electron emission in accordance with a signal generated by said signal generating circuitry; an electron multiplier arranged to receive electrons from the emitter and comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and means for applying an electric field across the arrangement of material; and a phosphor screen arranged to be illuminated by the secondary electron emission from the electron multiplier.
Claim 28
Dependent Claim
31 words
An electron multiplier comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by X-rays and means for applying an electric field across the arrangement of material.
Claim 29
Dependent Claim
31 words
An electron multiplier comprising a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by X-rays and means for applying an electric field across the arrangement of material.
References Cited (Backward Citations)
No citation records indexed.
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