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:
Apr. 01, 1997
Filed:
Jun. 07, 1995
Applicant:
Inventors:
David R Rhiger, Santa Barbara, CA (US);
Sanghamitra Sen, Santa Barbara, CA (US);
William J Hamilton, Jr, Ventura, CA (US);
Assignee:
Santa Barbara Research Center, Goleta, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T / ; H01L / ;
U.S. Cl.
CPC ...
25037013 ; 25037009 ; 25037012 ;
Abstract
Gamma ray detectors (20, 130) are provided with a detector layer (30) that is formed of Hg.sub.x Cd.sub.1-x-y Zn.sub.y Te, wherein 0<x<0.05 and 0.ltoreq.y<0.5. The Hg percentage in the group II sublattice of this detector layer is limited to replace Cd vacancies. These Cd vacancies are native point defects which degrade the resolution of gamma ray detectors because they facilitate early electron-hole recombination and time delays of current carriers.