热释光前剂量激活法与熄灭法测定瓷器年代结果比较

为找到一个合适的测定不同时代烧制瓷器样品年代的热释光测年方法,用热释光前剂量熄灭法与前剂量激活法分别测定97个现代、民国、清代、明代、元代、宋代、五代以及唐代瓷器样品的古剂量。研究结果表明对现代、民国以及清代晚期烧制的瓷器样品采用热释光前剂量激活法测定,可以获得比热释光前剂量熄灭法更为准确的结果。对于清代中、早期、明代晚期的瓷器样品用两种方法测定的古剂量结果基本相同。但对于明代中、早期、元代、宋代、五代与唐代以及年代更长的瓷器样品,则采用热释光前剂量熄灭法测定可以得到较为满意的结果,而前剂量激活法无法用于这些年代较长的瓷器样品年代测定。因此,采用合适的热释光方法测定不同年代烧制的瓷器样品非常重要。

Comparison of the activation and quenching methods in thermoluminescence predose techniques for dating porcelain samples

Using quenching and activation methods,97 porcelain samples were dated during the Tang Dynasty,Five Dynasties, Song Dynasty,Yuan Dynasty,Ming Dynasty,Qing Dynasty,the Republic of China era and during current times.The results indicated that the activation method was more accurate for the dating of current and relatively young porcelains from the late Qing Dynasty and the Republic of China era.The results from the two methods were comparable for porcelains of the middle and early Qing Dynasty and late Ming Dynasty.For relatively old porcelains,such as those form the middle and early Ming Dynasty and before (Yuan Dynasty,Song Dynasty,Five Dynasties and Tang Dynasty),the quenching pre-dose method produced satisfactory results while the activation method failed.Therefore,it is crucial to date porcelains of different ages with thermoluminescence techniques.