The 80th JSAP Autumn Meeting 2019

Presentation information

Poster presentation

2 Ionizing Radiation » 2 Ionizing Radiation (Poster)

[20p-PB4-1~94] 2 Ionizing Radiation (Poster)

Fri. Sep 20, 2019 4:00 PM - 6:00 PM PB4 (PB)

4:00 PM - 6:00 PM

[20p-PB4-56] Optical and Scintillation properties of Pr-doped Y2Si2O7 single crystals by the floating zone method

〇(M1)Prom Kantuptim1, Masaki Akatsuka1, Noriaki Kawaguchi1, Takayuki Yanagida1 (1.NAIST)

Keywords:Scintillator, Single crystal

The Scintillator material is a luminescent material emitting photons such as ultraviolet and visible light from the excitation by high energy photons or charge particles [1]. The emitted photons will be collected by a photodetector then converted to the electrical signal for radiation detection purpose. The single crystal type scintillators using the rare earth ions as the luminescence center have been widely used. Among rare earth ions, Pr3+ is one of the suitable ions for this purpose from the result of fast scintillation decay time around 10-20 ns [2]. In other side, yttrium pyrosilicate Y2Si2O7 (YPS) is a potential host for luminescent materials including scintillators because of high luminescence efficiency as well as thermal and chemical stability studied for upconversion [3].
In this study, we investigated both physical and scintillation properties of YPS single crystals grown form the floating zone method with a variation of Pr-doping concentrations to investigate the optimum concentration as a scintillator purpose.