Влияние рентгеновского излучения на валентное состояние Eu в люминофоре Y-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=- : Eu-=SUP=-3+-=/SUP=-

Abstract

The effect of X-rays on the valence state of Eu ions in a Y2O3 matrix has been studied by the EPR method. The effect of charge exchange of Eu ions (Eu3 + → Eu2 + → Eu3 +) in the Y2O3 structure has been found. The mechanism of europium reduction to the divalent state under the action of X-ray irradiation has been described.