Author/Authors :
Kaneko، نويسنده , , J.H and Susa، نويسنده , , N and Tsuchida، نويسنده , , S and Watanabe، نويسنده , , M and Miura، نويسنده , , S and Mizuno، نويسنده , , T and Yamauchi، نويسنده , , Y and Hashiba، نويسنده , , M and Oku، نويسنده , , T and Homma، نويسنده , , A and Fujita، نويسنده , , F and Ino، نويسنده , , T and Furusaka، نويسنده , , M and Sawamura، نويسنده , , T and Shimizu، نويسنده , , H.M and Kiyanagi، نويسنده , , Y، نويسنده ,
Abstract :
A thin GSO scintillator was developed aiming at applications for the neutron science. In order to fabricate a large and thin GSO scintillator in the future, fabrication was started from two types of GSO powders. Although several GSO films were fabricated by evaporation techniques, these films did not have luminescence in photo luminescence (PL) spectroscopy. Thus, these samples were annealed up to 1550°C. However, it resulted in no luminescence observation. In response to these results, GSO powders were directly annealed; a phenomenon looking like melting and sintering were observed for Gd2Si2O7:Ce at a temperature higher than 1500°C. This sample was quasi-transparent and had luminescence at 405 nm in PL spectrum. In addition, this sample was tougher than a GSO single crystal. In conclusion, the prospect of fabrication of a thin GSO scintillator by combination of annealing and mechanical polishing was obtained.
Keywords :
GSO scintillator , Neutron , Thin scintillator , Evaporation , Photo luminescence spectrum , Annealing
