TY - JOUR
T1 - Eu and Rb co-doped LiCaAlF6 scintillators for neutron detection
AU - Yamaji, Akihiro
AU - Yanagida, Takayuki
AU - Kawaguchi, Noriaki
AU - Yokota, Yuui
AU - Fujimoto, Yutaka
AU - Kurosawa, Shunsuke
AU - Pejchal, Jan
AU - Watanabe, Kenichi
AU - Yamazaki, Atsushi
AU - Yoshikawa, Akira
N1 - Funding Information:
This work was partially supported by the funding program of Adaptable and Seamless Technology transfer Program through target drive R&D, Japan Science and Technology Agency.
PY - 2013/8
Y1 - 2013/8
N2 - Eu and Rb co-doped LiCaAlF6 (LiCAF) single crystals with different dopant concentrations were grown by the micro-pulling-down method for neutron detection. Their transmittance spectra showed strong absorption bands at 200-220 and 290-350 nm, and under 241Am alpha-ray excitation, their radioluminescence spectra exhibited an intense emission peak at 373 nm that was attributed to the Eu2+ 5d-4f transition. These results were consistent with those for the Rb-free Eu:LiCAF. The highest light yield among the grown crystals was 36,000 ph/n, which was 20% greater than that of the Rb-free crystal. In addition, the neutron-excited scintillation decay times were 650-750 ns slower than that of the Rb-free Eu:LiCAF.
AB - Eu and Rb co-doped LiCaAlF6 (LiCAF) single crystals with different dopant concentrations were grown by the micro-pulling-down method for neutron detection. Their transmittance spectra showed strong absorption bands at 200-220 and 290-350 nm, and under 241Am alpha-ray excitation, their radioluminescence spectra exhibited an intense emission peak at 373 nm that was attributed to the Eu2+ 5d-4f transition. These results were consistent with those for the Rb-free Eu:LiCAF. The highest light yield among the grown crystals was 36,000 ph/n, which was 20% greater than that of the Rb-free crystal. In addition, the neutron-excited scintillation decay times were 650-750 ns slower than that of the Rb-free Eu:LiCAF.
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U2 - 10.1016/j.radmeas.2013.04.021
DO - 10.1016/j.radmeas.2013.04.021
M3 - Article
AN - SCOPUS:84880923864
VL - 55
SP - 132
EP - 135
JO - Radiation Measurements
JF - Radiation Measurements
SN - 1350-4487
ER -