THE SCINTILLATION PROCESS IN PLASTIC SOLID SOLUTIONS
THE SCINTILLATION PROCESS IN PLASTIC SOLID SOLUTIONS
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塑料固体溶液中的闪烁过程
DOI：
10.1103/physrev.91.927
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发表时间：
1953
期刊：
影响因子：
--
通讯作者：
W. L. Buck
中科院分区：
文献类型：
--
作者：
R. K. Swank;W. L. Buck
闪烁过程已经在许多系统中进行了研究，这些系统涉及有机氟在聚苯乙烯或聚乙烯基甲苯中的固溶体。已经确定，对于所研究的浓度，通过电离辐射直接激发溶质对观察到的闪烁的贡献可以忽略不计。溶剂的荧光随后辐射转移到溶质是一个重要的过程，但在更有效的系统中，闪烁的主要部分是通过非辐射过程从溶剂转移到溶质的。光学数据与脉冲大小与浓度数据的比较表明偶极-偶极相互作用是能量传递的一种手段。与α和β粒子的结果的比较表明，相同程度的淬灭存在于溶剂中的两种类型的激发。
The scintillation process has been studied in a number of systems involving a solid solution of an organic fluor in polystyrene or polyvinyltoluene. It has been determined that direct excitation of the solute by the ionizing radiation contributes a negligible amount to the observed scintillation for the concentrations studied. Fluorescence of the solvent followed by radiative transfer to the solute is a significant process, but the major fraction of the scintillation, in the more efficient systems, is transferred from the solvent to the solute by a nonradiative process. Comparison of optical data with data of pulse size vs concentration points to dipole-dipole interaction as a means of energy transfer. Comparison of results with alpha and beta particles shows that the same degree of quenching is present in the solvent for both types of excitation.