阴离子空位
- 网络anion vacancy;MaXb-y
阴离子空位-
随Na~+或P~（5+）掺量增加，阴离子空位或Ca~（2+）空位浓度增加。
Vacancy concentration increases with the increase of Na ~ + or p ~ ( 5 + ) .
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中子辐照产生了大量的阴离子单空位（F+）、阴离子双空位（F2）及其它更高阶的缺陷。
The results indicate that the irradiation generated a large number of optically detectable defects such as anion vacancies ( primarily the one-electron F ~ + center ), anion divacancies ( F_2 ) and some higher order defects .