TY - JOUR
T1 - Comparative studies of optical and scintillation properties between LiGaO2 and LiAlO2 crystals
AU - Yanagida, Takayuki
AU - Fujimoto, Yutaka
AU - Koshimizu, Masanori
AU - Kawano, Naoki
AU - Okada, Go
AU - Kawaguchi, Noriaki
N1 - Funding Information:
Acknowledgment This work was supported by a Grant-in-Aid for Scientific Research (A) 17H01375 from the Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT) and partially by JST A-step. The Cooperative Research Project of Research Institute of Electronics, Shizuoka University is also acknowledged.
Publisher Copyright:
©2017 The Physical Society of Japan.
PY - 2017/9/15
Y1 - 2017/9/15
N2 - We have investigated optical and scintillation properties of LiGaO2 and LiAlO2 crystals. From the transmittance spectra, the absorption edges were found to be around 200 nm but wider band gap was confirmed for LiAlO2 than LiGaO2. Both photoluminescence and scintillation spectra showed a broad emission band peaking at 340 nm in the both crystals. The scintillation decay times of LiGaO2 were 460 ns and 2.8 µs while that of LiAlO2 was 2 µs. Under neutron irradiation from 252Cf, the absolute scintillation light yields of LiGaO2 and LiAlO2 were 3300 ± 300 and 7200 ± 700 ph/n, respectively.
AB - We have investigated optical and scintillation properties of LiGaO2 and LiAlO2 crystals. From the transmittance spectra, the absorption edges were found to be around 200 nm but wider band gap was confirmed for LiAlO2 than LiGaO2. Both photoluminescence and scintillation spectra showed a broad emission band peaking at 340 nm in the both crystals. The scintillation decay times of LiGaO2 were 460 ns and 2.8 µs while that of LiAlO2 was 2 µs. Under neutron irradiation from 252Cf, the absolute scintillation light yields of LiGaO2 and LiAlO2 were 3300 ± 300 and 7200 ± 700 ph/n, respectively.
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U2 - 10.7566/JPSJ.86.094201
DO - 10.7566/JPSJ.86.094201
M3 - Article
AN - SCOPUS:85031027616
VL - 86
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 9
M1 - 094201
ER -