Radiation-resistant plastic scintillators

Fluorinederivatives of 4'-phenyl-3-hydroxyflavone have been synthesized and used as activators for radiation-resistant plastic scintillators based on polystyrene. Plastic scintillators containing 1.0 wt. % of the corresponding activators were created. The spectral-luminescent and scintillation properties of the obtained materials were studied, and their radiation resistance was determined. It was shown that the use of fluorinederivatives of 4'-phenyl-3-hydroxyflavone enables the production of plastic scintillators with radiation resistance at the level of 490 kGy.