A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to a preparation method of a Pr:LuAG ceramic scintillator. The method comprises the following steps: weighing the raw material powder according to the molar ratio of the required metal elements in (Lu(1-x)Prx)3Al5O12, wherein 0.005<=x<=0.05; adding a sintering aid and performing ball milling; drying the screened powder and calcining in a muffle; moulding, calcining the biscuit and sintering in a vacuum sintering furnace, wherein the vacuum degree is 10<-3>-10<-4>Pa; and finally, annealing the ceramic after the vacuum sintering in a high-temperature muffle to obtain the ceramic scintillator. The light output of the Pr:LuAG ceramic scintillator prepared by the preparation method provided by the invention reaches 16,000-20,000phot/MeV, the energy efficiency is 9-11%, the stopping power on X rays is very strong, and the harm to a human body caused by the X rays is greatly reduced.
The invention relates to a preparation method of a Pr:LuAG ceramic scintillator. The method comprises the following steps: weighing the raw material powder according to the molar ratio of the required metal elements in (Lu(1-x)Prx)3Al5O12, wherein 0.005<=x<=0.05; adding a sintering aid and performing ball milling; drying the screened powder and calcining in a muffle; moulding, calcining the biscuit and sintering in a vacuum sintering furnace, wherein the vacuum degree is 10<-3>-10<-4>Pa; and finally, annealing the ceramic after the vacuum sintering in a high-temperature muffle to obtain the ceramic scintillator. The light output of the Pr:LuAG ceramic scintillator prepared by the preparation method provided by the invention reaches 16,000-20,000phot/MeV, the energy efficiency is 9-11%, the stopping power on X rays is very strong, and the harm to a human body caused by the X rays is greatly reduced.
| European Patent Office | 2024
| European Patent Office | 2018
| European Patent Office | 2018