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Crystal Growth and Scintillation Properties of Ce3+ and Mg2+ co-doped LiCaAlF6 Single Crystal
| Content Provider | CiteSeerX |
|---|---|
| Author | Fujimoto, Yutaka Yanagida, Takayuki Yamaji, Akihiro Kawaguchi, Noriaki Yokota, Yuui Futami, Yoshisuke |
| Abstract | Abstract. Ce and Mg co-doped LiCaAlF6 (LiCAF) single crystals were grown by micro-pulling-down (µ-PD) method and the optical and scintillation properties of obtained crystals were measured. The grown crystals were crack-free and had 30-50 mm in length and 2 mm in diameter. Absorption coefficients were proportional to the Ce nominal concentrations. The radioluminescence spectra under 5.5 MeV alpha-ray irradiation showed emission peak at 290 and 310 nm due to Ce3+ 5d-4f transitions, and were agreement with those of Ce single-doped LiCAF. The highest light yield under 5.5 MeV alpha-ray irradiation of Ce 4 % and Mg 2 % co-doped LiCAF was found to be 0.6 times than that of lithium glass scintillator GS-20. Comparing the light yield of LiCAF samples with the fixed Ce nominal concentration and different Mg co-doped concentrations, the light yield increased with an increase of Mg nominal concentration. The alpha-ray excited decay times were constantly 45-50 ns. |
| File Format | |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
