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:
Mar. 30, 2010
Filed:
Apr. 26, 2007
Vincent Michael Contarino, Lusby, MD (US);
Pavlo Molchanov, Lexington Park, MD (US);
Vincent Michael Contarino, Lusby, MD (US);
Pavlo Molchanov, Lexington Park, MD (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A gating large area hybrid photomultiplier tube that includes an envelope, a photocathode for emitting electrons in correspondence with incident light entering the envelope, a collecting anode having a semiconductor device which has an electron incident surface for receiving photoelectrons emitted from the photocathode, a gating grid for gating the photoelectrons emitted from the photocathode, an electron optical system for focusing and directing the photoelectrons generated by the photocathode toward the electron incident surface, and an ion target for collecting positive ions from the photoelectrons. The envelope has a first opening and a second opening; the photocathode is disposed at the first opening, while the collecting anode is disposed at the second opening of the envelope.