High-energy-resolution scintillator: Ce3+ activated LaBr3
High-energy-resolution scintillator: Ce3+ activated LaBr3
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DOI：
10.1063/1.1308053
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发表时间：
2000-08
影响因子：
4
通讯作者：
E. Loef;P. Dorenbos;C. Eijk;K. Krämer;H. Güdel
中科院分区：
文献类型：
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作者：
E. Loef;P. Dorenbos;C. Eijk;K. Krämer;H. Güdel
报道了掺10%Ce3+的LaCl3晶体的闪烁特性。在光激发和伽马射线激发下，Ce3+的发射分别在330和352 nm处达到峰值。662keV的闪烁光输出为46000±1000光子/MeV。40%的激光衰减时间为26 ns，30%的激光衰减时间为210 ns，30%的激光衰减时间约为1000 ns。对于662keV的全吸收峰，能量分辨率(峰上半峰宽)为3.3±0.3%。
The scintillation properties of LaCl3 doped with 10% Ce3+ are presented. Under optical and gamma ray excitation, Ce3+ emission is observed to peak at 330 and 352 nm. The scintillation light output is 46 000±1000 photons/MeV at 662 keV. Forty percent is emitted with a decay time of 26 ns, 30% with 210 ns, and 30% with about 1000 ns. An energy resolution (full width at half maximum over the peak position) of 3.3±0.3% was observed for the 662 keV full absorption peak.