Optimizing the transparency of nano-LiF:Cu/silicone nanocomposites for 3D optically stimulated luminescence dosimetry

TY - GEN

T1 - Optimizing the transparency of nano-LiF:Cu/silicone nanocomposites for 3D optically stimulated luminescence dosimetry

AU - Nielsen, Camilla Lønborg

AU - Martinez Turtos, Rosana

AU - Julsgaard, Brian

AU - Muren, Ludvig

AU - Balling, Peter

N1 - Conference code: 12

PY - 2023/11

Y1 - 2023/11

N2 - Nanoparticles displaying optically stimulated luminescence embedded in a transparent polymer matrix have been proposed as a reusable high-spatial resolution 3D dosimeter. We measured the refractive indices of LiF:Cu nanoparticles and silicone and found a mismatch of 0.03-0.05 for the relevant wavelengths, explaining the transmission loss through 1 cm-sized nanocomposite dosimeters. We propose to bridge the refractive index gap by coating the LiF nanoparticles with a shell of SiO2. Initial studies show successful SiO2 growth, although more work is required to produce core-shell nanoparticles with an optimized refractive index.

AB - Nanoparticles displaying optically stimulated luminescence embedded in a transparent polymer matrix have been proposed as a reusable high-spatial resolution 3D dosimeter. We measured the refractive indices of LiF:Cu nanoparticles and silicone and found a mismatch of 0.03-0.05 for the relevant wavelengths, explaining the transmission loss through 1 cm-sized nanocomposite dosimeters. We propose to bridge the refractive index gap by coating the LiF nanoparticles with a shell of SiO2. Initial studies show successful SiO2 growth, although more work is required to produce core-shell nanoparticles with an optimized refractive index.

UR - http://www.scopus.com/inward/record.url?scp=85189317900&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/2630/1/012023

DO - 10.1088/1742-6596/2630/1/012023

M3 - Conference article

SN - 1742-6596

VL - 2630

JO - Journal of Physics: Conference Series (Online)

JF - Journal of Physics: Conference Series (Online)

M1 - 012023

T2 - 12th International Conference on 3D and Advanced Dosimetry

Y2 - 19 June 2022 through 23 June 2022

ER -