Method of making a channel type electron multiplier

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4853020
SERIAL NO

07147068

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A microchannel electron multiplier is formed by placing into a glass tube a plurality of bundles optical fibers, each having an etchable glass core and a glass cladding which is non-etchable when subjected to the conditions used for etching the core material. The fiber bundles located around the inside edge of the glass tube are replaced by support fibers having both a core and a cladding of a material which is non-etchable under the above-described conditions. The assembly of the tube, bundles and support fibers is heated to fuse the tube, bundles and support fibers together. The etchable core material is then removed and the assembly sliced into wafers. The inner surface of each of the claddings which bound the channel formed after removal of the core material is rendered electron emissive by reduction of the lead oxide by hydrogen gas. Metal films are deposited onto the opposed surfaces of each of the wafers to form contacts.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ITT INDUSTRIES, INC.NEW YORK, NY68
ITT ELECTRO OPTICAL PRODUCTS, A DIVISION OF ITT CORPORATIONROANOKE, VA0

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sink, Ronald A Roanoke, VA 4 81

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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Patent Citation Ranking

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