METHOD FOR PRODUCING POWDER barium fluoride, activated cerium fluoride, scintillation CERAMICS

摘要

1. A process for producing a powder of barium fluoride, cerium fluoride activated for scintillator ceramic with a high light yield, which comprises reacting a fluorinating the compound with a solution containing a barium salt and a cerium salt, followed by separation of the precipitate by washing, drying and heat treatment, characterized in that to communicate using a solution containing barium ions and cerium at their molar ratio of from 99.999: 0.001 to 99.990: 0.010, respectively, and the washed precipitate was re-treated with hydrofluoric acid is highly th chistoty.2. A method according to claim 1, characterized in that the process of interaction is carried out using stoichiometric amounts of reagents: the fluorinating compound, ammonium fluoride, and a solution containing nitrate and barium nitrate tseriya.3. A method according to claim 1, characterized in that the reprocessing is carried out the washed precipitate 45-47% strength hydrofluoric acid, taken with a 10% stoichiometric izbytkom.4. A method according to claim 1, characterized in that the heat treatment of the dried sludge is carried out at a temperature of 550-600 ° C in the atmosphere released during its decomposition of gaseous hydrogen fluoride, preferably for 2-3 hours.