TY - JOUR
T1 - Optical and scintillation characteristics of Y2 O3 transparent ceramic
AU - Fukabori, Akihiro
AU - Yanagida, Takayuki
AU - Pejchal, Jan
AU - Maeo, Shuji
AU - Yokota, Yuui
AU - Yoshikawa, Akira
AU - Ikegami, Takayasu
AU - Moretti, Federico
AU - Kamada, Kei
N1 - Funding Information:
This work was supported by GCOE (Global Center of Excellence) program for Materials Integration of the Ministry of Education, Culture, Sports, Science and Technology of the Japanese Government. One of us (F.M.) is grateful to Cariplo Foundation for the financial support in the framework of the project “Energy transfer and trapping processes in nanostructured scintillator materials” (2008–2011). The JSPS postdoctoral project P08055 is also gratefully acknowledged.
PY - 2010/4/1
Y1 - 2010/4/1
N2 - 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.
AB - 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.
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U2 - 10.1063/1.3330407
DO - 10.1063/1.3330407
M3 - Article
AN - SCOPUS:77951565697
SN - 0021-8979
VL - 107
JO - Journal of Applied Physics
JF - Journal of Applied Physics
IS - 7
M1 - 073501
ER -