Optical Materials ( IF 3.9 ) Pub Date : 2021-06-05 , DOI: 10.1016/j.optmat.2021.111234 I.N. Ogorodnikov , V.A. Pustovarov , L.I. Isaenko , S.I. Lobanov
Large single crystals of SrMgF4 (SMF), grown by the Bridgman method, were studied (T = 7–350 K, E = 1.2–6.2 eV) for both the pristine unirradiated and irradiated by an electron-beam (Ee = 10 MeV, D = 100–160 kGy, Φmax = 5 × 1015 electrons/cm2) SMF-crystals. The optical absorption spectra at different radiation doses were determined. The luminescence spectra were studied upon excitation with visible/ultraviolet light (PL), or X-ray radiation (XRL). The PL excitation (PLE) spectra under UV-radiation, the temperature dependence curves for the luminescence intensity of steady-state XRL and PL recorded monitoring emission at different energies, as well as low-temperature thermoluminescence were studied. The paper discusses the effect of electron-beam irradiation on the optical and luminescence properties of SMF crystals, the temperature dependence of the luminescence intensity and low-temperature thermoluminescence of irradiated SMF crystals.
中文翻译:
SrMgF 4单晶用快电子辐照的辐射刺激过程
研究了通过 Bridgman 方法生长的 SrMgF 4 (SMF)大单晶(T = 7–350 K,E = 1.2–6.2 eV),用于原始未照射和电子束照射(E e = 10 MeV, D = 100–160 kGy, Φ max = 5 × 10 15 电子/cm 2) SMF-晶体。测定了不同辐射剂量下的光吸收光谱。在用可见光/紫外光 (PL) 或 X 射线辐射 (XRL) 激发后研究发光光谱。研究了紫外辐射下的 PL 激发 (PLE) 光谱、稳态 XRL 的发光强度的温度依赖性曲线和 PL 记录的不同能量下的监测发射以及低温热释光。论文讨论了电子束辐照对SMF晶体的光学和发光特性的影响、发光强度的温度依赖性和受辐照的SMF晶体的低温热释光。