@article{oai:toyama.repo.nii.ac.jp:00017723,
 author = {赤丸, 悟士 and 蓬莱, 保幸 and 田口, 明 and 原, 正憲},
 journal = {富山大学研究推進機構水素同位体科学研究センター研究報告},
 month = {Dec},
 note = {We investigated applicability of solid phosphor nanoparticles to radioactivity measurements by using a liquidscintillation counter. Stable water-suspendable ZnS:Cu,Cl phosphor nanoparticles was prepared to followthe literature. The prepared ZnS:Cu,Cl was dispersed into tritiated water, and its radioluminescence wascounted by photomultiplier tube. The ZnS:Cu,Cl nanoparticles emitted photon by irradiation of tritium β- ray in tritiated water. The number of emitted photons increased proportionally with the tritium concentrationin the sample, indicating that the tritium concentration in solution could be measured by using ZnS:Cu,Clnanoparticles. The photon counting through the universal coincident circuit was also performed in order toreduce background noise. The lower detection limit was not improved by using the universal coincidentcircuit, while the emitted photons were counted for either photomultiplier. The result suggested that theconcentration of ZnS:Cu,Cl nanoparticles should be optimized., Article, 富山大学研究推進機構水素同位体科学研究センター研究報告, 38巻, 2019.12.06, pp.9-17},
 pages = {9--17},
 title = {ZnS:Cu,Cl ナノ粒子を用いた水溶液中トリチウム計測},
 volume = {38},
 year = {2019}
}