Peculiarities of Radiation Effects in MgO:Mn<sup>2+</sup>Crystals

• 作者: Guram Dekanozishvili Makvala Galustashvili Meri Abramishvili Tamaz Kalabegishvili Vakhtang Kvatchadze Valery Tavkhelidze Zaira Akhvlediani
• 来源期刊: 现代物理(英文)
• 学科: 化学
• 关键词: MAGNESIUM Oxide Radiation defects Thermally Stimulated LUMINESCENCE IR SPECTRA
• 年，卷（期）: 2011,（8）
• 页码范围: 841-844
• 页数: 4页
• 分类号: O6

摘要

The thermally stimulated luminescence and IR absorption spectra of MgO:Mn2+ crystals irradiated in different reactors have been studied. It has been shown that dependence of TSL peaks (450 and 550 K) and optical absorption bands (3290, 3720 and 1600 cm-1) on neutron fluence correlate. The trend of these changes in the same fluence range (1014-1017 n/cm2) depends both on the initial state of the crystal and on the irradiation source, which may be explained by the “small dose effect”.