Details

Autor(en) / Beteiligte

• Petrosyan, A.G.
• Ovanesyan, K.L.
• Shirinyan, G.O.
• Butaeva, T.I.
• Derzyan, M.V.
• Pedrini, C.
• Garnier, N.
• Dujardin, C.
• Kamenskikh, I.A.

Titel

LuAP/LuYAP single crystals for PET scanners: effects of composition and growth history

Ist Teil von

• Optical materials, 2003-10, Vol.24 (1), p.259-265

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2003

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In this paper we present results of optical and scintillation studies of three series of LuAP and LuYAP crystals differing in yttrium and cerium concentrations. Comparison of as-grown and UV-irradiated crystals has revealed two types of color centers located at 200–240 nm and 250–320 nm and giving rise to underlying absorption. The percentage of light emitted at 1 μs increases from 76% in LuYAP (Lu80%) to 85% in LuAP but is dependent on Ce concentration too. The light output for the best LuYAP and LuAP specimens of 2 × 2 × 10 mm 3 measured in the vertical geometry was 50% of LSO and 35% of LSO respectively.