System for digital radiography and dosimetry
AssigneeAgfa-Gevaert
InventorsLuc Struye, Paul Leblans
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Abstract
A radiography system is disclosed of the type having means for irradiation of an object in order to form an image of the said object or in order to detect irradiation of said object, said radiography system comprising a sensor having an exposure response function, wherein the sensor is in form of a stimulable storage phosphor plate, comprising stimulable storage phosphors, preferably having a dark-decay of more than 24 hours, wherein energy of stimulation radiation is higher than energy of emission radiation upon stimulation of said storage phosphors.
Claims7
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:Mn Ia
- RbMgF:Mn Ib
- CsCdF3:Mn Ic
- NaMgF3:Mn Id
- GdOF:Mn Ie
- GdBaZnO5:Eu If
- BiOX:Eu3+ Ig
- where X is F or Cl
- LiMgF3:Mn, and Ih
- 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.
Dependencies are inferred from the claim text.