| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Growth and Scintillation Properties of La(Cl0.05Br0.95)3:Ce Crystal |
| BAO Han-Bo, QIN Lai-Shun, DING Yan-Guo, LI Zheng-Guo, SHI Hong-Sheng**, SHU Kang-Ying** |
College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018
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| Cite this article: |
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BAO Han-Bo, QIN Lai-Shun, DING Yan-Guo et al 2013 Chin. Phys. Lett. 30 088101 |
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Abstract The growth and scintillation properties of La0.97(Cl0.05Br0.95)3:Ce0.03 crystals are reported. A 1-inch-diameter as-grown crystal is achieved by applying the vertical Bridgman technique, and one machined single crystal with sizes 18 mm×8 mm×8 mm is acquired. The scintillation properties of La0.97(Cl0.05Br0.95)3:Ce0.03 crystals are presented. Under the excitation of UV (ultraviolet) light, the crystal exhibits two luminescent peaks centered at 358 nm and 382 nm. The light output is about 62000 ph/MeV while the energy resolution (ΔE/E) of this crystal at 662 keV is 4.55% of the full width at half-maximum. Additionally, the crystal photoluminescence decay time constant is 17.7 ns, which is significantly faster than that of LaBr3:Ce. The results indicate that the LaCl3 and the LaBr3 can form the anion solid solution crystal. The Lax(ClyBr1?y)3:Ce1?x crystal is potentionally a promising scintillator.
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Received: 07 May 2013
Published: 21 November 2013
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| PACS: |
81.10.Fq
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(Growth from melts; zone melting and refining)
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81.10.-h
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(Methods of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)
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78.70.Ps
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(Scintillation)
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