| abstract |
The method for producing a rare earth oxysulfide scintillating ceramic body includes a heat treatment for forming a compact and subsequent gas high temperature isostatic pressing (GHIP treatment). First, a powder of the formula (M 1 - X Ln X ) 2 O 2 S, where M is one or more rare earth elements, and Ln is a group consisting of Eu, Ce, Pr, Tb, Yb, Dy, Sm, Nd and Ho One or more elements selected from: wherein 1 × 10 −6 <X <2 × 10 −1 . The powder is heat-treated at a temperature T ht to form a compact with independent bubbles. The consolidated body has a temperature of T hip (1100 ℃ <T hip In a GHIP treatment environment of <1500 ° C.), a dense body is formed by GHIP treatment to have a density of 99% or more of the theoretical density. |