pp. 617-626
S&M3942 Research Paper of Special Issue https://doi.org/10.18494/SAM5479 Published: February 7, 2025 Scintillation Properties of LiF/(K0.75Rb0.25)2CuCl3 Composites for Thermal Neutron Detection [PDF] Noriaki Kawaguchi, Keishi Yamabayashi, Kai Okazaki, Ryosei Takahashi, Takumi Kato, Daisuke Nakauchi, and Takayuki Yanagida (Received November 12, 2024; Accepted December 18, 2024) Keywords: scintillator, thermal neutron, composite, radiation detection
LiF/(K0.75Rb0.25)2CuCl3 composites were developed and their scintillation properties were investigated. Samples with mass ratios of LiF to (K0.75Rb0.25)2CuCl3 of 1:3, 1:2, 1:1, 2:1, and 3:1 were prepared, and the 1:3 and 1:2 samples showed the highest signal intensity in the pulse height spectra under thermal neutron irradiation using 252Cf. The signal intensities corresponded to light yields below 9000 photons/neutron. The estimated α/β ratio of the 1:3 sample was high (0.62), and the high α/β ratio characteristic was also observed in the commercial LiF/ZnS:Ag composite. The temperature dependence of X-ray-induced scintillation spectra from room temperature to 200 ℃ showed that the emission intensity of (K0.75Rb0.25)2CuCl3 decreased more significantly at high temperatures than that of the lithium glass GS20.
Corresponding author: Noriaki Kawaguchi![]() ![]() This work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Noriaki Kawaguchi, Keishi Yamabayashi, Kai Okazaki, Ryosei Takahashi, Takumi Kato, Daisuke Nakauchi, and Takayuki Yanagida, Scintillation Properties of LiF/(K0.75Rb0.25)2CuCl3 Composites for Thermal Neutron Detection, Sens. Mater., Vol. 37, No. 2, 2025, p. 617-626. |