[9p-E204-1~17] 2.1 Radiation physics, Material development and characteristic evaluation

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-E204-5] Development of Effective Triplet Exciton Capture System for α-Particle Plastic Scinitllator

〇(DC)Kota Inage¹, Marina Kanno², Mitsugu Sohma³, Jun Akedo³, Junichi Kaneko^2,4, Mikio Higuchi⁴, Yuki Morishita², Yuichi Kitagawa^4,5 (1.Grad. Sch. Chem. Sci. Eng., Hokkaido Univ., 2.JAEA, 3.AIST, 4.Fac. Eng., Hokkaido Univ., 5.WPI-ICReDD, Hokkaido Univ.)

Keywords:

plastic scintillator,alpha-particle,europium

Plastic scintillators are promising candidates for detecting alpha-particles owing to their high processability and transparensy. However, loaded luminophores in the polymer matrix have two drawbacks: (1) they cannot utilize triplet excitons in the polymer matrix and (2) they exhibit concentration quenching, resulting in less exciton capture efficiency from the polymer matrix. In this work, we developed a highly sensitive plastic scintillator incorporating a Eu(III) complex at high concentration levels, which exhibited tens of times greater scintillation than international standard plastic scintillator (BC-400, Saint-Gobain).