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Photoluminescence and scintillation properties of Ti-doped CaHfO~3~ crystals by Hiroyuki Fukushima; Daisuke Nakauchi; Noriaki Kawaguchi; Takayuki Yanagida is a Engineering article available to read on EtoBox.

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Ti-doped CaHfO3 crystals were synthesized by the floating zone method equipped with xenon arc lamps, and the photoluminescence (PL) and scintillation properties are investigated. Ti-doped CaHfO3 crystals emit strong blue photons under UV irradiation. The PL and scintillation signals are observed around 410 nm due to the charge-transfer (CT) related to Ti 4+ . The PL and scintillation decay time constants are approximately 1 μs which is relatively shorter than other Ti-doped materials. The scintillation light yield of Ti-doped CaHfO3 crystals is estimated by the pulse height measurement under 137 Cs gamma-rays irradiation. The 1.0 % Ti-doped sample shows the highest scintillation light yield (3,400 photons/MeV) among the present samples.

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Author

Hiroyuki Fukushima; Daisuke Nakauchi; Noriaki Kawaguchi; Takayuki Yanagida

Publisher

Institute of Pure and Applied Physics; Japan Society of Applied Physics; IOP Publishing (ISSN 0021-4922)

Published

2019

Language

EN

Field

Engineering (Physical Sciences)