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:
Jun. 03, 1997
Filed:
Mar. 27, 1996
Applicant:
Inventors:
Yongzheng She, Shanghai, CN;
Fonglan Ji, Shanghai, CN;
Wei-Lou Cao, Prince Georges County, MD (US);
Meizhen Zhang, Prince Georges County, MD (US);
Yanhua Shih, Howard County, MD (US);
Roger H Schneider, Montgomery County, MD (US);
Assignee:
CSL Opto-Electronics Corporation, Ellicott City, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; G21K / ;
U.S. Cl.
CPC ...
2502 / ; 3131 / ;
Abstract
A direct conversion broad band x-ray/gamma-ray photocathode having at least one layer functioning as an efficient x-ray or gamma-ray absorber and another layer functioning as an efficient transmission secondary electron emitter for providing both high detection efficiency and high spatial resolution, for use in either a radiation detection environment or an image intensification environment.