X-ray damage characterization in BaLiF3,KMgF3 and LiCaAlF6 complex fluorides
X-ray damage characterization in BaLiF3,KMgF3 and LiCaAlF6 complex fluorides
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DOI：
10.1016/j.radmeas.2004.01.036
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发表时间：
2004-08
影响因子：
2
通讯作者：
Hirotoshi Sato;Amina Bensalah;N. Solovieva;A. Beitlerova;A. Vedda;M. Martini;M. Nikl;T. Fukuda
中科院分区：
文献类型：
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作者：
Hirotoshi Sato;Amina Bensalah;N. Solovieva;A. Beitlerova;A. Vedda;M. Martini;M. Nikl;T. Fukuda
在CF{sub 4}气氛下通过Czochralski法生长2英寸尺寸的KMgF{sub 3}、BaLiF{sub 3}和LiCaAlF{sub 6}（LiCAF）单晶。X射线照射被用来进行诱导的光吸收现象和在紫外和可见光谱区的色心创建的比较研究。诱导吸收光谱的积分是显着较低的LiCAF相对于其他研究材料。据发现，F-吸收带的振幅被抑制超过3倍的Mg掺杂。对于掺镁晶体，最佳掺杂浓度为0.2mol%Mg {sup 2+}。
Two-inch sized KMgF{sub 3},BaLiF{sub 3} and LiCaAlF{sub 6} (LiCAF) single crystals were grown by the Czochralski method under a CF{sub 4} atmosphere. X-ray irradiation was used to carry out a comparative study of induced optical absorption phenomena and colour centre creation in the ultra-violet and visible spectral regions. The integral of the induced absorption spectra is significantly lower in LiCAF with respect to the other studied materials. It is found that the amplitude of the F-absorption band is suppressed more than a factor of 3 by Mg-doping. For Mg-doped crystals, the optimum doping concentration is about 0.2 mol% of Mg{sup 2+}.