Two-inch sized KMgF3,BaLiF3 and LiCaAlF6 (LiCAF) single crystals were grown by the Czochralski method under a CF 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 Mg2+.
Sato, H., Bensalah, A., Solovieva, N., Beitlerova, A., Vedda, A., Martini, M., et al. (2004). X-ray damage characterization in BaLiF3, KMgF3 and LiCaAlF6 complex fluorides. RADIATION MEASUREMENTS, 38(4-6), 463-466 [10.1016/j.radmeas.2004.01.036].
X-ray damage characterization in BaLiF3, KMgF3 and LiCaAlF6 complex fluorides
VEDDA, ANNA GRAZIELLA;MARTINI, MARCO;
2004
Abstract
Two-inch sized KMgF3,BaLiF3 and LiCaAlF6 (LiCAF) single crystals were grown by the Czochralski method under a CF 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 Mg2+.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.