Newly developed flexible thermal neutrons detectors containig 6LiF nanocrystals.

Vesco M., Carturan S., Cinausero M., Maggioni G., Marchi T., Fabris D., Gramegna F., Stevanato L., Quaranta A.
  Venerdì 15/09   15:30 - 18:30   Aula A208   I - Fisica nucleare e subnucleare
Aiming at the production of flexible and radiation hard thermal neutrons detectors, commercial powders of ZnS:Ag (EJ-600) have been entrapped into a polyphenylsiloxane matrix. Sensitization towards thermal neutrons has been pursued by adding ${}^{6}LiF$ nanocrystals, which have been synthesized by co-precipitation technique and characterized by X-ray diffraction and SEM-EDS. This can lead to enhanced light output, owing to the higher fraction of ionizing particles able to escape from the ${}^{6}LiF$ nanoparticle. The obtained nanocomposites have been benchmarked for light output and thermal neutrons detection efficiency against a commercial sample of EJ-426 by exposing them to a moderated ${}^{252}Cf$ source.