Title :
Optical and Scintillation Properties of Polydimethyl-Diphenylsiloxane Based Organic Scintillators
Author :
Quaranta, Alberto ; Carturan, Sara Maria ; Marchi, Tommaso ; Kravchuk, Vladimir L. ; Gramegna, Fabiana ; Maggioni, Gianluigi ; Degerlier, Meltem
Author_Institution :
Dipt. di Ing. dei Mater. e Tecnol. Industriali, Univ. di Trento, Trento, Italy
fDate :
4/1/2010 12:00:00 AM
Abstract :
Polysiloxane based scintillators with high light yield have been synthesized. The polymer consists in cross-linked polydimethyl-co-diphenylsiloxane with different molar percentages of phenyl units. 2,5-diphenyl oxazole (PPO) and 2,5-bis(5-ter-butyl-2-benzoxazolyl)thiophene (BBOT) have been dispersed in the polymer as dopants. The energy transfer and scintillation capabilities have been investigated, for two different amounts of phenyl groups in the polymer network and for different concentrations of dye molecules, by means of fluorescence spectroscopy, ion beam induced luminescence (IBIL) and scintillation yield measurements with ¿ particles from an 241Am source. The luminescence features and the scintillation yields have been correlated to the composition of the scintillators.
Keywords :
polymers; solid scintillation detectors; 2,5-bis(5-ter-butyl-2-benzoxazolyl)thiophene; 2,5-diphenyl oxazole; 241Am source; dopants; fluorescence spectroscopy; ion beam induced luminescence; optical properties; polydimethyl-diphenylsiloxane based organic scintillators; scintillation properties; scintillation yield measurements; Energy exchange; Energy measurement; Fluorescence; Ion beams; Luminescence; Network synthesis; Optical network units; Optical polymers; Particle measurements; Spectroscopy; Energy transfer; ion beam induced luminescence; polysiloxane; scintillation detectors;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2010.2042817
