The invention discloses a composition and preparation method of
scintillation glass used for preparation of a
scintillation fiber-optic faceplate. The composition comprises, by weight, 10 to 20% of SiO2, 0 to 10% of Al2O3, 20 to 45% of B2O3, 30 to 60% of La2O3, 0 to 2% of Nb2O5, 5 to 25% of Gd2O3, 0 to 4% of Lu2O3, 0 to 5% of BaO, 0 to 2% of SnO and 0 to 5% of ZnO. The invention also provides the preparation method for the
scintillation glass used for preparation of the scintillation
fiber-optic faceplate. The method comprises the following steps: (1) weighing the raw materials according to the above-mentioned weight percentages, mixing all the raw materials, and
grinding the raw materials until the raw materials are uniform so as to obtain a batch; (2) pouring the batch into a
crucible and fusing the batch so as to prepare a glass melt; (3)
casting the glass melt on a preheated heat-resistant steel die, maintaining the temperature of the die in a
muffle furnace and then carrying out cooling and annealing; and (4) carrying out
cutting,
surface grinding and
polishing so as to obtain the scintillation glass. The prepared scintillation glass has the advantages of good
chemical stability, high scintillation light
luminescence efficiency and capacity of realizing
fiber drawing.