| Autor: |
Oleg Sidletskiy, Pavlo Arhipov, Serhii Tkachenko, Iaroslav Gerasymov, Georgy Trushkovsky, Tetyana Zorenko, Yuriy Zorenko, Pavel Mateychenko, Anna Puzan, Wojciech Gieszczyk, Pawel Bilski |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Crystals, Vol 9, Iss 6, p 296 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2073-4352 |
| DOI: |
10.3390/cryst9060296 |
| Popis: |
This work is dedicated to the growth process and investigation of luminescent and scintillation properties of CeAlO3 single crystals and CeAlO3/CeAl11O18 metamaterials under e-beam and α-particles excitation. It has been shown that cathodoluminescence and radioluminescence spectra of CeAlO3 crystals contain two bands, peaking at 440 and 500 nm, and caused by the Ce3+ 5d−4f transitions into CeAl11O18 phase, which is present in these crystals as an admixture. Under 270 nm ultraviolet (UV) light excitation, a CeAlO3 crystal possesses complicated non-exponential luminescence decay, with the average decay time of 16 ns. The light yield of CeAlO3 crystals under α-particle excitation is about 16% and 12%, in respect to the standard Bi4Ge3O12 (BGO) crystal and Y3Al5O12:Ce (YAG:Ce) single crystalline film samples, respectively. The CeAlO3 scintillation decay is quite fast, with the decay time value t1/e in the 54−56 ns range. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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