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热释光断代是鉴定古代陶瓷艺术品真伪的一个重要技术,现有的两个标准方法——细粒技术和石英夹杂物技术虽已建立多年,但仍不能用于瓷器年代测定,这是因为瓷器的热释光特性比较复杂。于是,人们就想到了热释光断代中的一个特殊方法——前剂量技术。本文研究了目前使用的前剂量技术,包括线性回归法和指数回归法。研究中发现许多陶瓷在剂量小于几个Gy时热释光灵敏度随剂量上升就呈现出次线性关系。根据这个次线性特征,本文提出了一个用饱和指数回归来计算古剂量的新方法。
Thermoluminescence dating is an important technology to identify the authenticity of ancient ceramic artwork. Although the two existing standard methods, fine grain technology and quartz inclusion technology, have been established for many years, they can not be used for porcelain dating Because porcelain thermoluminescence characteristics more complicated. Thus, people think of a special method of thermoluminescence dating - the former dose technology. This article examines the current use of pre-dose techniques, including linear regression and exponential regression. In the study, it was found that the thermoluminescence sensitivities of many ceramics show a sub-linear relationship with the increase of dose when the dose is less than a few Gy. Based on this sub-linear feature, a new method for calculating ancient dosages by using saturation exponential regression is proposed.