The Prepraration And Spectral Representation Of The Ytterbium Scintillation Glass

We are used to detecting the luminous produced by the nuclear reaction between the target nucleus nuclide and neutrinos to detect neutrinos. After the activator absorb the energy transferred by certain mechanism during the nuclear reaction, the scintillation glass produce scintillation and luminous.We use the traditional melt cooling method to produce ytterbium scintillation glass. This paper is about scintillation glass spectral researches of different doping concentrations of Yb3+. Experimental results show that when the Yb3+doping concentration was30%, the luminous ability of Yb3+scintillation glass is best. Its luminous mechanism is charges transfer between Yb3+and its ligands O2-. The highest emission peak is located in ultraviolet visible band. At first, Stokes displacement will increase when Yb3+ion concentration increase, then it will decrease. When the Yb3+iom concentration is30%, the concentration of Gd2O3is bigger, optical basicity of this glass will increase, then its network structure become more closely, so the Stokes displacement is bigger. And when the Yb3+ion concentration increases to35%,40%, the Gd3+ion concentration is reduced, the optical basicity of glass will be effected, then Stokes displacement will reduce.