Preparation and performance of plastic scintillators with copper iodide complex-loaded for radiation detection

0556732 - FZÚ 2023 RIV GB eng J - Journal Article
Li, W. - Li, Y. - Nikl, Martin - Hamel, M. - Wu, H. - Qian, S. - Kučerková, Romana - Babin, Vladimir - Ren, G. - Wu, Y.
Preparation and performance of plastic scintillators with copper iodide complex-loaded for radiation detection.
Polymer. Roč. 249, May (2022), č. článku 124832. ISSN 0032-3861. E-ISSN 1873-2291
R&D Projects: GA MŠMT(CZ) EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : plastic scintillators * poly(vinyltoluene) * Cu-based phosphorescent complex * radiation detection
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 4.6, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.polymer.2022.124832

The development of plastic scintillators loaded with low-cost phosphorescent sensitizer is currently an important topic toward enhancing the scintillation light yield for radiation detection applications. In this work, we report plastic scintillators loaded with deep-blue-emitting phosphorescent sensitizer CuI(PPh3)2(t-BuPy), where PPh3 and t-BuPy stand for triphenylphosphine and 4-tert-butylpyridine, respectively. CuI(PPh3)2(t-BuPy)-loaded poly (vinyltoluene)-based plastic scintillators with high optical transmittance of over 80% were synthesized via bulk polymerization method. The optical absorption, photoluminescence spectra, decay kinetics, and scintillation performance under X-ray, γ-ray, and α-particle excitation were comprehensively investigated. The scintillation yield was reduced with the increase of CuI(PPh3)2(t-BuPy) loading concentration. The physical mechanism and the role of the copper iodide complex in scintillation yield reduction are proposed.
Permanent Link: http://hdl.handle.net/11104/0330894