【摘要】 采用正电子湮没寿命技术研究了等效剂量的5.28×1016cm-2 85 MeV氟离子和3×1020cm-2En≥1 MeV中子辐照的α-Al2O3中产生的辐射损伤及其细致的热退火行为。实验结果表明重离子辐照的α-Al2O3中的正电子湮没寿命及其强度与中子辐照的α-Al2O3中的完全符合,从实验上验证了重离子辐照可以很好地模拟中子(质子)的辐照。更多还原

【Abstract】 Radiation damage and its detailed thermal annealing behavior in a-A12O3 irradiated at the equivalent dose, respectively, by 5.28×1016 cm -2 85 MeV 19F ions and by 3×1020 cm -2 En ≥ 1 MeV neutrons have been investigated by the positron annihilation lifetime technique. The experimental results show that all the positron annihilation parameters of lifetime and intensity in the heavy ion irradiated a-Al2O3 are in good agreement with the ones in the neutron irradiated a-Al2O3, and verify that heavy ion irradiation can well simulate neutron (proton) irradiation.更多还原