Comparison of luminescence, energy resolution and light loss coefficient of Gd.sub.1.53./sub.La.sub.0.47./sub.Si.sub.2./sub.O.sub.7./sub.:Ce and Lu.sub.1.9./sub.Y.sub.0.1./sub.SiO.sub.5./sub.:Ce scintillators

0482736 - FZÚ 2018 RIV NL eng J - Článek v odborném periodiku
Yawai, N. - Wantong, K. - Chewpraditkul, W. - Murakami, R. - Horiai, T. - Kurosawa, S. - Yoshikawa, A. - Nikl, Martin
Comparison of luminescence, energy resolution and light loss coefficient of Gd_1.53La_0.47Si₂O₇:Ce and Lu_1.9Y_0.1SiO₅:Ce scintillators.
Nuclear Instruments & Methods in Physics Research Section A. Roč. 844, Feb (2017), s. 129-134. ISSN 0168-9002. E-ISSN 1872-9576
Grant CEP: GA MŠMT(CZ) LH14266
Institucionální podpora: RVO:68378271
Klíčová slova: energy resolution * light yield * luminescence * scintillation * GPSLa23.5%:Ce * Lu1.9Y0.1SiO5:Ce
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 1.336, rok: 2017

The luminescence and scintillation properties of Gd1.53La0.47Si2O7:Ce (GPSLa23.5%:Ce) scintillators were investigated and compared to those of Lu1.9Y0.1SiO5:Ce (LYSO:Ce) scintillators. At 662 keV γ-rays, the light yield of 33,500 ± 3300 ph/MeV obtained for GPSLa23.5%:Ce is higher than that of 28,100 ± 2800 ph/MeV obtained for LYSO:Ce. The energy resolution of 4.8 ± 0.2% obtained for GPSLa23.5%:Ce is much better than that of 8.2 ± 0.3% obtained for LYSO:Ce due to its better intrinsic resolution and proportionality of light yield. The light yield and energy resolution for α- rays, as well as a light yield ratio under excitation with α - and γ - rays (α/γ ratio) were also determined. The intrinsic light yield and light loss coefficient under excitation with 662 keV γ-rays were evaluated.
Trvalý link: http://hdl.handle.net/11104/0278119