TY - JOUR
T1 - Optical transmittance and pulse shape discrimination of polystyrene/poly(methyl methacrylate)-based plastic scintillators
AU - Liang, Yi Yao
AU - Liu, Ying Du
AU - Wang, Pu Sen
AU - Bao, Jie
AU - Ouyang, Xiao Ping
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to China Science Publishing & Media Ltd. (Science Press), Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Chinese Nuclear Society 2024.
PY - 2025/1
Y1 - 2025/1
N2 - Polymethyl methacrylate (PMMA) is an optically transparent thermoplastic with favorable processing conditions. In this study, a series of plastic scintillators are prepared via thermal polymerization, and the impact of PMMA content on their transparency and pulse shape discrimination (PSD) ability is investigated. The fabricated samples, comprising a polystyrene (PS)-PMMA matrix, 30.0 wt% 2,5-diphenyloxazole (PPO), and 0.2 wt% 9,10-diphenylanthracene (DPA), exhibit high transparency with transmissivity ranging from 70.0 to 90.0% (above 415.0 nm) and demonstrate excellent n/γ discrimination capability. Transparency increased with increasing PMMA content across the entire visible light spectrum. However, the PSD performance gradually deteriorated when the aromatic matrix was replaced with PMMA. The scintillator containing 20.0 wt% PMMA demonstrated the best stability concerning PSD properties and relative light yields.
AB - Polymethyl methacrylate (PMMA) is an optically transparent thermoplastic with favorable processing conditions. In this study, a series of plastic scintillators are prepared via thermal polymerization, and the impact of PMMA content on their transparency and pulse shape discrimination (PSD) ability is investigated. The fabricated samples, comprising a polystyrene (PS)-PMMA matrix, 30.0 wt% 2,5-diphenyloxazole (PPO), and 0.2 wt% 9,10-diphenylanthracene (DPA), exhibit high transparency with transmissivity ranging from 70.0 to 90.0% (above 415.0 nm) and demonstrate excellent n/γ discrimination capability. Transparency increased with increasing PMMA content across the entire visible light spectrum. However, the PSD performance gradually deteriorated when the aromatic matrix was replaced with PMMA. The scintillator containing 20.0 wt% PMMA demonstrated the best stability concerning PSD properties and relative light yields.
KW - Neutron detection
KW - Plastic scintillation
KW - Polymethyl-methacrylate
KW - Polystyrene
KW - Pulse shape discrimination
UR - https://www.scopus.com/pages/publications/85212436425
U2 - 10.1007/s41365-024-01577-0
DO - 10.1007/s41365-024-01577-0
M3 - 文章
AN - SCOPUS:85212436425
SN - 1001-8042
VL - 36
JO - Nuclear Science and Techniques
JF - Nuclear Science and Techniques
IS - 1
M1 - 9
ER -