1.
Appl Radiat Isot
; 69(10): 1475-8, 2011 Oct.
Article
in English
| MEDLINE
| ID: mdl-21640595
ABSTRACT
Luminescent and scintillation properties of polystyrene-based plastic scintillators with ß-diketone Eu complexes are investigated. A scintillator with dibenzoylmethane Eu complex containing two phenyl groups demonstrates the maximum scintillating efficiency. It is shown that plastic scintillators efficiency is dramatically decreased if ß-diketone derivatives contain no phenyl groups as substituents. This fact can be explained by exciplex mechanism of energy transfer from a matrix to Eu complex.