Patent ID: 6583434
Filing Date: 2003-06-24
Classification: C09K,G21K

Abstract:
A radiography system capable of forming an image of an object or detecting irradiation of said object, said radiography system comprising a sensor having an exposure response function, wherein said sensor is in a form of a stimulable storage phosphor plate, comprising stimulable storage phosphors wherein an energy of stimulation radiation is higher than an energy of emission radiation upon stimulation of said stimulable storage phosphors, wherein said stimulable storage phosphors have a cubic Perovskite structure of the Pm3m space crystallographic group as determined by X-ray powder diffraction using Cu.alpha.1 irradiation and have a structure corresponding with a following formula (Ia-Ih):RbCdF3:Mnâ€ƒâ€ƒIa RbMgF:Mnâ€ƒâ€ƒIb CsCdF3:Mnâ€ƒâ€ƒIc NaMgF3:Mnâ€ƒâ€ƒId GdOF:Mnâ€ƒâ€ƒIe GdBaZnO5:Euâ€ƒâ€ƒIf BiOX:Eu3+â€ƒâ€ƒIg where X is F or ClLiMgF3:Mn, andâ€ƒâ€ƒIh wherein said stimulable storage phosphors have a dark decay so that within 24 hours in the dark said stimulable storage phosphors will not lose more than 5% of all stored energy.