Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 42, Issue 5, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/42/5/055117
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Funding
- Czech [AV IAA100100810]
- Ministry of Education, Youth and Sports of the Czech Republic [68-4077-0040]
- KONTAKT [ME953]
- Japan Society for the Promotion of Science (JSPS) [P08055]
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We investigate and compare optical absorption, luminescence and scintillation properties of Pr-doped Y3Al5O12, Lu3Al5O12, Y2SiO5 and Lu2SiO5 single crystals. The processes determining the kinetics of the fast Pr3+ 5d-4f radiative transition are described. Among the studied host materials, only Lu3Al5O12 presents neither any 5d(1)-4f luminescence state nonradiative quenching nor Pr3+ ionization at room temperature. We evaluate the figure of merit of all materials for application as scintillators. The most promising system appears to be Lu3Al5O12 : Pr, since it combines an elevated density of 6.67 g cm(-3), a fast scintillation response dominated by a 21 ns decay time and a spectrally corrected light yield about 160% with respect to that of Bi4Ge3O12 (BGO).
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