pp. 1425-1430
S&M1435 Research Paper of Special Issue https://doi.org/10.18494/SAM.2017.1622 Published: October 18, 2017 Characterizations of CsSrCl3:Ce Crystalline Scintillator [PDF] Yutaka Fujimoto, Keiichiro Saeki, Daisuke Nakauchi, Takayuki Yanagida, Masanori Koshimizu, and Keisuke Asai (Received March 31, 2017; Accepted July 18, 2017) Keywords: scintillator, CsSrCl3, Ce3+ 5d–4f allowed transition
We report on the photoluminescence and scintillation characterizations of a new CsSrCl3:Ce (0.5 mol%) crystalline scintillator grown by the vertical Bridgman method. The fluorescence quantum efficiency (QE) for the Ce3+ 5d–4f allowed transitions at around 365–425 nm was 90% under excitation of 315 nm light. The photoluminescence decay time of Ce3+ was approximately 28 ns. When X-rays excited the crystal, intense emission bands were observed at 350–400 nm, which could be attributed to the Ce3+ characteristic emission. The scintillation light yield of the developed crystal was ~8600 photons/MeV compared with a NaI:Tl commercial scintillator, and the principal scintillation decay time was approximately 626 ns plus two fast components of around 3.8 and 57 ns.
Corresponding author: Yutaka FujimotoCite this article Yutaka Fujimoto, Keiichiro Saeki, Daisuke Nakauchi, Takayuki Yanagida, Masanori Koshimizu, and Keisuke Asai, Characterizations of CsSrCl3:Ce Crystalline Scintillator, Sens. Mater., Vol. 29, No. 10, 2017, p. 1425-1430. |