Luminescent and kinetic properties of the polystyrene composites based on BaF2 nanoparticles

作者：Demkiv T M^*; Halyatkin O O; Vistovskyy V V; Gektin A V; Voloshinovskii A S

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2016, 810: 1-5.

DOI：10.1016/j.nima.2015.11.130

• Plastic composite scintillator
• BaF2 nanoparticles
• X-ray excited luminescence

Luminescence-kinetic properties of polystyrene composites based on BaF2 nanoparticles were studied. The electron emission from the nanoparticles due to the photoelectric effect is the main luminescence excitation mechanism in the case of polystyrene composites loaded with small BaF2 nanoparticles (similar to 20 nm). Scintillation pulse of polystyrene composites possesses only fast decay component with the time constant tau similar to 2 ns, and its emission intensity considerably exceeds the one for pure polystyrene scintillator upon the X-ray excitations.

• 出版日期2016-2-21