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. 09, 1983
Filed:
Jan. 06, 1981
Applicant:
Inventor:
Walter S Friauf, Bethesda, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
307445 ; 250369 ; 307465 ; 307470 ; 307603 ; 328110 ;
Abstract
A gamma ray scintillation coincidence detection circuit having four inputs connected to two gating configurations, fed by gamma ray detector units. Detection in any one of the four inputs develops a disabling signal in one signal path leading to an AND gate. Detection in any two of the four inputs results in a system output in another signal path. When any input goes high, the AND gate is disabled after a predetermined settable time delay T. If a second input goes high before the expiration of the delay time T, then the signal in the other path can pass through the AND gate and sets a latch, signifying that detector coincidence has occurred.