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. © 2010 American Institute of Physics.
Fukabori, A., Yanagida, T., Pejchal, J., Maeo, S., Yokota, Y., Yoshikawa, A., et al. (2010). Optical and scintillation characteristics of Y2 O3 transparent ceramic. JOURNAL OF APPLIED PHYSICS, 107(7) [10.1063/1.3330407].
Optical and scintillation characteristics of Y2 O3 transparent ceramic
MORETTI, FEDERICO;
2010
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. © 2010 American Institute of Physics.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
