Opt_Mater_PS_30062020.pdf (1.17 MB)
Download file3D printing of composite reflectors for enhanced light collection in scintillation detectors
preprint
posted on 2021-07-26, 21:20 authored by Petr SokolovPetr Sokolov, Dmitrii Komissarenko, Georgy Dosovitskiy, Mikhail KorzhikThe present study deals with the fabrication of light-reflecting
materials used in pixelated scintillator detectors. For the first time, the
reflecting surfaces for pixels of different sizes (from 0.8 to 3.2 mm) were
obtained via a low-cost DLP 3D
printing technique. The material for
the reflectors was the new composite of transparent ultraviolet light-cured
resin and TiO2 as a light-scattering filler. It was observed
that TiO2 showed better performance compare to other pigments such
as BaSO4, hBN or cubic zirconia. The object formation rate was about
1 cm per hour with the possibility to produce several parts simultaneously that
simplifies the wrapping procedure. It was found that the regular grooves
pattern of the fabricated parts (staircase effect) could increase a light
collection from a scintillator. The reflective properties of such surfaces were
comparable to conventional reflection coating (e.g., Teflon wrapping).
Presented at the 2019 IEEE NSS & MIC conference, Manchester, UK. 14 pages, 12 figures, 1 table. Journal reference: Optical Materials V. 108, October 2020, p. 110393.Funding
14.W03.31.0004
History
Email Address of Submitting Author
sokolov.petr@gmail.comORCID of Submitting Author
0000-0003-3516-3953Submitting Author's Institution
NRC Kurchatov Institute - IREASubmitting Author's Country
- Russian Federation