METHOD OF OBTAINING SCINTILLATION MONOCRYSTALS OF LEAD TUNGSTATE

摘要

FIELD: methods of obtaining crystals, namely monocrystals of lead tungstate. SUBSTANCE: method includes pulling the monocrystals from melt containing lead and tungsten oxides in presence of additives of alloying elements in gas medium followed by annealing grown monocrystals in atmosphere of pure inert gas at pressure of 0.8-1.5 atm and temperature of 780-950 C. Proposed method enhances radioactive resistance of scintillation monocrystals of lead tungstate PbWO4 to ionizing radiation. EFFECT: extended field of application. 6 dwg, 1 tbl, 1 ex