当前位置: X-MOL 学术J. Lumin. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Sequential two-step optical stimulation in K-feldspars: Correlation among the luminescence signals and implications for modeling parameters
Journal of Luminescence ( IF 3.6 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.jlumin.2020.117425
Vasiliki Angeli , George Kitis , Vasilis Pagonis , Georgios S. Polymeris

Abstract Luminescence signals from feldspars are of importance in luminescence dosimetry and dating. The present study attempts a correlation between two specific experimental parameters, such as the lifetime of luminescence components and the dimensionless acceptor density parameter ρ′, as well as the influence of the crystal structure on the luminescence signals. The analysis of the above parameters was completed in three different K-feldspar samples, each one belonging to the structural group of microcline, sanidine and orthoclase. The stimulations in this manuscript were carried out using blue optically stimulated luminescence (BLOSL) and infrared (IRSL) optically stimulated luminescence, in two different two step experimental protocols. A comparison of these two step protocols is applied for the first time in the literature. A de-convolution analysis was completed with the use of two components, a slow component which can be described by general order kinetics (GOK), and a tunneling component which is necessary to describe the blue light stimulation. The GOK component describes recombination processes taking place only through the conduction band. In order to describe the results of the IR stimulation protocol, two tunneling components were used. The results from this study are encouraging and are in full correlation with published studies in the luminescence literature.

中文翻译:

钾长石中的连续两步光刺激:发光信号之间的相关性和对建模参数的影响

摘要 长石的发光信号在发光剂量测定和测年中具有重要意义。本研究试图建立两个特定实验参数之间的相关性,例如发光组件的寿命和无量纲受体密度参数 ρ',以及晶体结构对发光信号的影响。上述参数的分析是在三种不同的钾长石样品中完成的,每一种都属于微斜长石、红长石和正长石的结构组。本手稿中的刺激是使用蓝色光受激发光 (BLOSL) 和红外 (IRSL) 光受激发光,在两个不同的两步实验方案中进行的。这两个步骤协议的比较首次在文献中应用。使用两个分量完成去卷积分析,一个是可以用一般有序动力学 (GOK) 描述的慢分量,另一个是描述蓝光刺激所必需的隧道分量。GOK 组件描述了仅通过导带发生的重组过程。为了描述 IR 刺激协议的结果,使用了两个隧道组件。这项研究的结果令人鼓舞,并且与发光文献中已发表的研究完全相关。GOK 组件描述了仅通过导带发生的重组过程。为了描述 IR 刺激协议的结果,使用了两个隧道组件。这项研究的结果令人鼓舞,并且与发光文献中已发表的研究完全相关。GOK 组件描述了仅通过导带发生的重组过程。为了描述 IR 刺激协议的结果,使用了两个隧道组件。这项研究的结果令人鼓舞,并且与发光文献中已发表的研究完全相关。
更新日期:2020-10-01
down
wechat
bug