The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 1982
Filed:
Mar. 26, 1980
Applicant:
Inventors:
Charles M Tomasetti, Leola, PA (US);
John A Ulaky, Washington Boro, PA (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
3131 / ; 313104 ; 313106 ;
Abstract
An electron discharge device includes an evacuated envelope having therein a photocathode, an anode and an electron multiplier. The electron multiplier comprises a plurality of dynodes having a nickel substrate, an exposed surface of which has a base layer of antimony sensitized with the vapors of a plurality of alkali metals. At least one Nichrome dynode, substantially devoid of secondary emissive material is disposed adjacent to the anode. The Nichrome dynode reduces and stabilizes the anode sensitivity and gain of the device.