TY - JOUR
T1 - Neutron and gamma-ray pulse shape discrimination of LiAlO2 and LiGaO2 crystals
AU - Yanagida, Takayuki
AU - Watanabe, Kenichi
AU - Okada, Go
AU - Kawaguchi, Noriaki
N1 - Funding Information:
This work was supported by Grant-in-Aid for Scientific Research (A) ( 17H01375 ) and (B) ( 18H03468 ) from the Ministry of Education, Culture, Sports, Science and Technology of the Japanese government (MEXT), Japan as well as A-STEP from Japan Science and Technology Agency (JST), Japan . The Cooperative Research Project of Research Institute of Electronics, Shizuoka University, Terumo Foundation for Life Sciences and Arts, Izumi Science and Technology Foundation, The Kazuchika Okura Memorial Foundation and The Iwatani Naoji Foundation are also acknowledged.
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2019/3/1
Y1 - 2019/3/1
N2 - In this research, we found that some undoped crystals (LiAlO2 and LiGaO2) show pulse shape discrimination (PSD) capabilities, and we report some basic scintillation and PSD properties of these crystals. These two crystals show scintillation spectrum with an emission peak at around 330 nm, and the spectral shapes of the two were identical. The scintillation decay curves consist of decay components on the order of micro-second for both the crystals under X-ray excitation, and the decay times were specify values. When we irradiated the samples with neutrons from 252Cf and γ-rays from 60Co, we found that decays vary for signals generated by neutron and γ-rays. A two-dimensional histogram of pulse heights of the slow and fast components for LiAlO2 and LiGaO2 clearly showed neutron and γ-ray events separated in the two-dimensional histogram indicating material's capacity for PSD.
AB - In this research, we found that some undoped crystals (LiAlO2 and LiGaO2) show pulse shape discrimination (PSD) capabilities, and we report some basic scintillation and PSD properties of these crystals. These two crystals show scintillation spectrum with an emission peak at around 330 nm, and the spectral shapes of the two were identical. The scintillation decay curves consist of decay components on the order of micro-second for both the crystals under X-ray excitation, and the decay times were specify values. When we irradiated the samples with neutrons from 252Cf and γ-rays from 60Co, we found that decays vary for signals generated by neutron and γ-rays. A two-dimensional histogram of pulse heights of the slow and fast components for LiAlO2 and LiGaO2 clearly showed neutron and γ-ray events separated in the two-dimensional histogram indicating material's capacity for PSD.
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U2 - 10.1016/j.nima.2018.11.135
DO - 10.1016/j.nima.2018.11.135
M3 - Article
AN - SCOPUS:85058668263
VL - 919
SP - 64
EP - 67
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
ER -