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一、引言用热释光(简称TL)方法测定古陶瓷的烧制年代是近二十年发展起来的一门考古技术。其测定年代(A)的原理十分简单,可以表示成: A=D/(?)其中D是陶器烧成以来所累积的自然辐射吸收剂量;(?)是陶器每年接受的吸收剂量。陶器吸收的辐射剂量主要来自陶器内部和环境中天然放射性核素~(238)U、~(232)Th和~(40)K等所发射的α、β、γ射线以及来自空间的宇宙射线。在实际测量和计算中,(?)为三部分组成即 (?)=(?)_α+(?)_β+(?)_(γ+c) 其中(?)_α是α射线提供的年剂量;(?)_β是β射线提供的年剂量;(?)_(γ+c)是γ射线和宇宙射线提供的年剂量。
I. INTRODUCTION The determination of the age of ancient ceramics by TL (TL) method is an archeology developed in recent 20 years. The principle of the dating (A) is very simple and can be expressed as: A = D / (?) Where D is the cumulative absorbed natural radiation amount of the pottery since firing; The radiation dose absorbed by pottery mainly comes from the α, β, γ rays emitted by natural radionuclides ~ (238) U, ~ (232) Th and ~ (40) K and the cosmic rays from space in the interior and environment of pottery. In the actual measurement and calculation, (?) Is composed of three parts: (?) = (?) _ Α + (?) _ Β + (?) _ (Γ + c) (?) _? is the annual dose given by the beta ray; (?) _ (y + c) is the annual dose of gamma and cosmic rays provided;