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Temperature Dependence of Scintillation Properties of Bright Oxide Scintillators for Well-Logging

Yanagida, Takayuki ; Fujimoto, Yutaka ; Kurosawa, Shunsuke ; Kamada, Kei ; Takahashi, Hiromitsu ; Fukazawa, Yasushi ; Nikl, Martin ; Chani, Valery

Japanese Journal of Applied Physics, 2013-07, Vol.52 (7), p.076401-076401-6 [Periódico revisado por pares]

The Japan Society of Applied Physics

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  • Título:
    Temperature Dependence of Scintillation Properties of Bright Oxide Scintillators for Well-Logging
  • Autor: Yanagida, Takayuki ; Fujimoto, Yutaka ; Kurosawa, Shunsuke ; Kamada, Kei ; Takahashi, Hiromitsu ; Fukazawa, Yasushi ; Nikl, Martin ; Chani, Valery
  • Assuntos: Ceramics ; Decay ; Oxides ; Pulse height ; Quenching ; Scintillation ; Simulation ; Temperature dependence
  • É parte de: Japanese Journal of Applied Physics, 2013-07, Vol.52 (7), p.076401-076401-6
  • Notas: Schematic diagram of the experimental setup. (Color online) Relative pulse height of Tl:NaI (circle) and Ce:LSO (square) normalized at 25 °C vs temperature. (Color online) Decay time of Tl:NaI (circle) and Ce:LSO (square) vs temperature. (Color online) Relative pulse height of Ce:YAG normalized at 25 °C vs temperature. The inset illustrates 137 Cs $\gamma$-ray spectrum at 25, 100, and 150 °C. (Color online) Relative pulse height of Ce:YAP normalized at 25 °C vs temperature. The inset illustrates 137 Cs $\gamma$-ray spectrum at 25 and 150 °C. Decay time of Ce:YAP vs temperature. (Color online) Relative pulse height of Ce:GAGG normalized at 25 °C vs temperature. The inset illustrates 137 Cs $\gamma$-ray spectrum at 25 and 100 °C. Decay time of Ce:GAGG vs temperature. (Color online) Relative pulse height of Pr:LuAG normalized at 25 °C vs temperature. The inset illustrates 137 Cs $\gamma$-ray spectrum at 25 and 150 °C. (Color online) Decay time of Pr:LuAG vs temperature. The inset compares decay curves at 75 and 100 °C. (Color online) Relative pulse height of undoped LuAG normalized at 25 °C vs temperature. The inset illustrates 137 Cs $\gamma$-ray spectrum at 25 and 75 °C. (Color online) Relative pulse height (MCA channel) of Tl:NaI (circle), Ce:LSO (square), Ce:YAG (diamond), Ce:YAP (cross mark), Ce:GAGG (plus mark), Pr:LuAG (triangle), and undopedLuAG (filled circle) vs temperature. (Color online) Energy resolution at 662 keV of Tl:NaI (circle), Ce:LSO (square), Ce:YAG (diamond), Ce:YAP (cross mark), Ce:GAGG (plus mark), Pr:LuAG (triangle), and undopedLuAG (filled circle) vs temperature.
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  • Descrição: Scintillation characteristics such as the pulse height, energy resolution, and decay time of single crystals of Tl-doped NaI (Tl:NaI), Ce-doped Lu 2 SiO 5 (Ce:LSO), Ce-doped YAlO 3 (Ce:YAP), Ce-doped Gd 3 (Al,Ga) 5 O 12 (Ce:GAGG), Pr-doped Lu 3 Al 5 O 12 (Pr:LuAG), undoped LuAG, and Ce-doped Y 3 Al 5 O 12 (Ce:YAG) transparent ceramics were compared at 25--150 °C to simulate well logging conditions. For increasing temperature, the light output of the scintillators decreased, mostly because of thermal quenching. Among these samples, Pr:LuAG demonstrated the highest scintillation performance at 150 °C.
  • Editor: The Japan Society of Applied Physics
  • Idioma: Inglês
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