In-situ luminescence measurement of irradiation defects in lithium oxide
In-situ luminescence measurement of irradiation defects in lithium oxide
复制标题
氧化锂辐照缺陷的原位发光测量
DOI：
10.1016/0022-3115(91)90485-p
复制
发表时间：
1991
影响因子：
3.1
通讯作者：
Y. Ito
中科院分区：
文献类型：
--
作者：
Y. Asaoka;H. Moriyama;Kimihiko Iwasaki;K. Moritani;Y. Ito
在用 2 MeV He+ 离子轰击的氧化锂中进行原位发光测量。在300~850 K的温度范围内获得了发光光谱。在离子轰击过程中，在260、380和510 nm附近观察到宽宽度的发光峰，并且平衡峰强度随着温度的升高而降低。在 550 K 以上出现了 340 nm 处的另一个峰。离子轰击后，在 310 nm 和 260 nm 的光照射下分别观察到 380 nm 和 340 nm 峰，并归因于 F+ 和 F0 中心。 260 和 510 nm 处的其他峰可能与氢氧化物等杂质有关。本技术对于研究轰击下辐照缺陷的行为非常有用。
An in-situ luminescence measurement was performed in lithium oxide bombarded with 2 MeV He+ions. The luminescence spectra were obtained in the temperature range from 300 to 850 K. During the ion bombardment, the luminescence peaks of broad widths were observed near 260, 380 and 510 nm and the equiliblium peak intensities decreased with increasing temperature. Another peak at 340 nm appeared above 550 K. After the ion bombardment, the 380 and 340 nm peaks were observed on the light irradiation of 310 and 260 nm, respectively, and were attributed to the F+and F0centers. The other peaks at 260 and 510 nm might be associated with the impurities such as hydroxides. The present technique is very useful to study the behaviours of irradiation defects under bombardment.