Registration Number
0226U004504,
(0125U003423)
, R & D reports
Title
3D printing of plastic scintillator based particle detectors.
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Дослідження 3D надрукованих зразків методами FIM та FDM, для вирішення задач нових експериментів.
Head
Boiaryntsev Andrii Yu., Доктор технічних наук
Registration Date
16-09-2026
Organization
Institute for Scintillation Materials of National Academy of Science of Ukraine
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Preparation of FIM technology for mass production of future particle detectors based on scintillators.
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Filaments for different functional purposes (reflective, scintillating, and absorbing) were developed for 3D printing ionizing-radiation detectors. Test samples were 3D printed using the developed filaments and their properties were investigated. Reflective filaments based on polycarbonate (PC) and polymethyl methacrylate (PMMA) with reflective additives such as titanium dioxide (TiO2) and polytetrafluoroethylene (PTFE) were developed. Optical measurements showed that, for PC-based filaments, the optimal composition was TiO2 (10%) + PTFE (5%), providing a reflectance of 85.5% and transmission of up to 0.04% at a wavelength of 420 nm for a 1.0 mm thick sample. For PMMA-based filaments containing 15% TiO2, a reflectance of 92.0% was obtained for a 0.2 mm thick sample. Adding PTFE to PMMA did not improve the properties, probably because of the lower light-absorption coefficient and higher transparency of the PMMA matrix. In such optically transparent media, multicomponent combinations may not provide an additional benefit, although this result may also depend on the specific 3D-printing conditions and processing parameters. Additional measurements were obtained by exposing 3D-printed plastic scintillator prototypes (SuperLayers and SuperCube) to cosmic rays. Reflectors based on both PMMA and PC demonstrated excellent optical isolation, with the average optical crosstalk between cubes below 1%. Scintillation filaments suitable for FDM printing were successfully produced by extrusion from commercial polystyrene pellets and tested for radiation hardness. The 3D-printed polystyrene scintillators demonstrated radiation hardness no lower than that of conventional polystyrene-based scintillators. The addition of 3HF increased the radiation hardness to an estimated D1/2 value of ~16.4 Mrad. A synthesis method for boron-containing organic compounds was developed for producing filament with incorporated neutron-sensitive additives.
Product Description
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Karavaieva Nataliia L.
Krech Anton V.
Sibilieva Tetiana H.
Boiaryntsev Andrii Yu.
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2026-09-16
