Susceptibility to radiation of rare-earth elements and transition metals in Y₃Al₅O₁₂, YAlO₃, LiNbO₃, SrGdGa₃O₇ single crystals was investigated. Additional absorption bands after g-irradiation with doses 10³-10⁷ Gy and protons with fluencies of 10¹³-10¹⁶ cm^-2 were found. A decrease in additional absorption with increasing Pr³⁺, Dy³⁺ and Cu²⁺ and with decreasing Nd³⁺ and Fe³⁺ dopant concentration was observed. Dopants like Ce³⁺ and Cr³⁺ show a relatively complex behavior. This behavior strongly depend on the type of radiation and its dose.

Keywords: gamma and proton irradiations, additional absorption, thermal annealing, oxidizing atmosphere, reducing atmosphere

---

The full text of this paper in pdf-Format:

If you came directly to this page, click this symbol to go to the homepage of CRT.