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:
Dec. 27, 1994
Filed:
Sep. 03, 1993
Applicant:
Inventors:
Dennis E Persyk, Barrington, IL (US);
Raymond P DeVito, Palatine, IL (US);
Assignee:
Siemens Medical Systems, Inc., Iselin, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ; G01T / ; G01T / ;
U.S. Cl.
CPC ...
25036309 ; 2502521 ;
Abstract
Light emitting diodes (LEDs) at fixed locations are placed at the entrance face of the scintillator within the detector head of a scintillation camera system. By energizing the LEDs, surrogate scintillation events may be generated and processed by the scintillation camera system. Information thus acquired can be used to maintain the photodetectors in a well-tuned state, to identify baseline shifts in the preamplifier channels and to determine system deadtime.