Optical and scintillation characteristics of Y2 O3 transparent ceramic

Akihiro Fukabori, Takayuki Yanagida, Jan Pejchal, Shuji Maeo, Yuui Yokota, Akira Yoshikawa, Takayasu Ikegami, Federico Moretti, Kei Kamada

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)

Abstract

Various fundamental characteristics of Y2 O3 ceramics, such as optical transmittance, reflectivity, absorption coefficient, refractive index, and dielectric constant, were investigated. Furthermore, in order to evaluate the possible application of this material as γ -ray scintillator, other radiation responses, like the α -ray excited emission spectrum, the γ -ray excited pulse height spectrum, the light yield, the nonproportionality, the energy resolution, and the γ -ray excited scintillation decay curves were obtained. The light yield of Y2 O3 ceramics was evaluated in about 1.13 times higher than that of Bi4Ge3 O12 (BGO):Ce single crystals and was estimated in 9300 photon/MeV. The nonproportionality measurements showed a good proportionality. The scintillation decay curve could be fitted by an exponential function characterized by a fast component of about 34 ns.

Original languageEnglish
Article number073501
JournalJournal of Applied Physics
Volume107
Issue number7
DOIs
Publication statusPublished - 2010 Apr 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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