Influence of linear energy transfer on the scintillation decay behavior in a lithium glass scintillator
Influence of linear energy transfer on the scintillation decay behavior in a lithium glass scintillator
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线性能量转移对锂玻璃闪烁体闪烁衰变行为的影响
DOI：
10.1016/j.jlumin.2015.04.015
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
K. Asai
中科院分区：
文献类型：
--
作者：
M. Koshimizu;K. Iwamatsu;M. Taguchi;S. Kurashima;A. Kimura;T. Yanagida;Y. Fujimoto;K. Watanabe;K. Asai
分析了线性能量传递对锂玻璃闪烁体GS 20闪烁性能的影响。用不同LET的脉冲离子束测量了闪烁的时间分布。闪烁的时间曲线的上升是更快的更高的LET，而衰减部分没有显着不同的LET。在上升的LET效应归因于激发态相互作用的能量转移过程中，从主体玻璃的发光中心，Ce 3+离子。如果光产额随着LET的降低而降低，那么在高LET下的快速上升可以通过激发态相互作用引起的能量传递和猝灭之间的竞争来解释。
We analyzed the effects of linear energy transfer (LET) on the scintillation properties of a Li glass scintillator, GS20. The temporal profiles of scintillation were measured by using pulsed ion beams with different LETs. The rise in the temporal profiles of scintillation was faster for higher LET, whereas the decay part did not vary significantly for different LETs. The LET effects in the rise were ascribed to excited state interactions during the energy transfer process from the host glass to the luminescent centers, Ce3+ions. If the light yield decreases with LET, the fast rise at high LET could be explained by the competition between energy transfer and quenching due to the excited state interactions.