Author/Authors :
Pani، نويسنده , , R. De Pellegrini، نويسنده , , R. and Cinti، نويسنده , , M.N. and Bennati، نويسنده , , P. and Betti، نويسنده , , M. and Vittorini، نويسنده , , F. and Mattioli، نويسنده , , M. and Trotta، نويسنده , , G. and Orsolini Cencelli، نويسنده , , V. and Scafè، نويسنده , , R. A. Montani، نويسنده , , L. and Navarria، نويسنده , , F. and Bollini، نويسنده , , D. and Baldazzi، نويسنده , , G. and Moschini، نويسنده , , G. and Rossi، نويسنده , , P. and de Notaristefani، نويسنده , , F.، نويسنده ,
Abstract :
Recent availability of LaBr3:Ce crystal is attracting researchers for the development of new advanced SPECT e PET systems. The crystal shows excellent energy resolution values good radiation absorption properties and speed. At present, LaBr3:Ce crystal is available with continuous shape covering 5×5 cm2 area with a thickness up to 1 in. With the aim of analysing the imaging performances of LaBr3:Ce for Single Photon Emission Tomography (SPET), we tested three continuous crystals with the same detection area of 5×5 cm2 and various thicknesses ranging between 4 and 10 mm. Three small scintillation cameras were assembled by coupling LaBr3:Ce crystal to Hamamatsu H8500 Flat panel PMT. The results show very good imaging performances for single photon emission application with superior energy and spatial resolution up 7.5% and 0.9 mm, respectively, and a detection efficiency up to 95% at 140 keV photon energy.
Keywords :
Inorganic scintillator , ?-ray imagers , PSPMT , Nuclear medicine , LaBr3:Ce
