辐射防护2026，Vol.46Issue(1)：10-17,8.
溶质化学结构对液体闪烁体荧光-闪烁性能的影响研究
Effect of solute chemical structure on fluorescence-scintillation properties of liquid scintillators
摘要
Abstract
Liquid scintillators,composed of organic solvents,scintillating solutes,and phase shifters,offer advantages such as strong neutron/gamma-ray(n/γ)resolution capability,high detection efficiency,and excellent stability.In this study,three chemically distinct scintillator solutes(PPO,KCB,and BBOT)were selected to prepare corresponding liquid scintillators.Systematic measurements of ultraviolet absorption spectra,fluorescence emission spectra,scintillation count rates,and n/γ discrimination performance were conducted.Molecular simulations and experimental measurements were employed to investigate the underlying mechanisms.Results indicate that scintillation counting rates and n/γ discrimination performance reach maximum values when the solute contains strong electron-donating groups,a high hydrogen atom ratio in transition atoms,and transition groups containing N or O atoms.These findings provide valuable guidance for further optimizing the counting sensitivity and n/γ discrimination efficiency of liquid scintillators.关键词
液体闪烁体/辐射检测/化学结构/荧光/n/γ射线甄别Key words
liquid scintillator/chemical structure/fluorescence/n/γ discrimination分类
能源科技引用本文复制引用
柳秉煦,李悦,李乐乐,丁良伟,杨茂,张永强,芦伟,汪卫华..溶质化学结构对液体闪烁体荧光-闪烁性能的影响研究[J].辐射防护,2026,46(1):10-17,8.基金项目
国家磁约束核聚变能发展研究专项(2024YFE03040004)、安徽省自然科学基金项目(2508085MA019) （2024YFE03040004）
