Medical electrical equipment - Characteristics of electro-optical X-ray image intensifiers - Part 5: Determination of the detective quantum efficiency
NORM herausgegeben am 5.8.1994
Designation standards: IEC 61262-5-ed.1.0
Publication date standards: 5.8.1994
The number of pages: 35
Approximate weight : 105 g (0.23 lbs)
Country: International technical standard
Kategorie: Technische Normen IEC
Applies to electro-optical X-ray image intensifiers for medical use, as components of diagnostic X-ray equipment. Describes a method of determining the detective quantum efficiency (DQE) of X-ray image intensifiers by analysis of the single gamma-ray photon scintillation pulse-height spectrum. The method applies only to electro-optical X-ray image intensifiers having output radiance decay rates approximately equal to or faster than that of a P-20 phosphor. Concerne les intensificateurs electro-optiques dimage radiologique destines a une utilisation medicale en tant que composants dequipements a rayonnement X de diagnostic. Decrit une methode de determination de lefficacite quantique de detection (DQE) des intensificateurs electro-optique dimage radiologique par analyse du spectre damplitude des impulsions de scintillation de photons unitaires de rayonnement gamma. La methode ne sapplique quaux intensificateurs electro-optiques dimage radiologique ayant des vitesses de decroissance de lemittance de sortie sensiblement egales ou superieures a celles dun luminophore P-20.