High-energy-resolution scintillator:: Ce3+ activated LaBr3

被引：623

作者：

van Loef, EVD

Dorenbos, P

van Eijk, CWE

Krämer, K

Güdel, HU

机构：

[1] Delft Univ Technol, Interfac Reactor Inst, Radiat Technol Grp, NL-2629 JB Delft, Netherlands

[2] Univ Bern, Dept Chem & Biochem, CH-3000 Bern 9, Switzerland

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 10期

关键词：

D O I：

10.1063/1.1385342

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The scintillation properties of LaBr3 doped with 0.5% Ce3+ are presented. Under optical and gamma ray excitation, Ce3+ emission is observed to peak at 356 and 387 nm. The scintillation light output is 61 000 +/- 5000 photons/MeV at 662 keV. More than 90% is emitted with a decay time of 35 ns. An energy resolution (full width at half maximum over the peak position) of 2.85%+/-0.05% was observed for the 662 keV full absorption peak. A time resolution of 385 ps was obtained using BaF2 as second scintillator and gamma rays of Co-60. (C) 2001 American Institute of Physics.

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页码：1573 / 1575

页数：3

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