Production behavior of irradiation defects in α-alumina and sapphire under ion beam irradiation
Production behavior of irradiation defects in α-alumina and sapphire under ion beam irradiation
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离子束辐照下α-氧化铝和蓝宝石辐照缺陷的产生行为
DOI：
10.1016/j.jnucmat.2003.12.010
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发表时间：
2004
影响因子：
3.1
通讯作者：
H. Moriyama
中科院分区：
文献类型：
--
作者：
K. Moritani;I. Takagi;H. Moriyama
用原位发光测量技术研究了H+和He+离子束辐照下α-Al 2 O3和蓝宝石中辐照缺陷的产生行为。当温度升高到800 K时，F ~+心在330 nm处的发光强度随温度单调下降，而F ~ 0心在410 nm处的发光强度随温度呈非单调变化.在后一种情况下，强度随着温度的升高而降低，直到600 K，然后在高于该温度时增加。还观察到，在410 nm处的发光强度在He+照射中比在H+照射中低。这些观察结果进行了分析，考虑的F型中心的辐照缺陷的产生机制和反应动力学。
The production behavior of irradiation defects in α-alumina and sapphire was studied by in situ luminescence measurement technique under ion beam irradiation of H+and He+. The luminescence intensity of the F+centers at 330 nm was observed to decrease monotonically with the increasing temperature up to 800 K, while the intensity of the F0centers at 410 nm to show non-monotonic temperature dependence. In the latter case, the intensity decreased with the temperature up to 600 K, and then increased above this temperature. It was also observed that the luminescence intensity at 410 nm was lower in the He+irradiation than in the H+irradiation. These observations were analyzed by considering the production mechanisms and reaction kinetics of the irradiation defects of F-type centers.