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1. 香港城市大学物理及材料科学系,香港城市大学物理及材料科学系,香港城市大学物理及材料科学系,中山大学物理系 ,香港,香港
2. 中山大学物理系广州510275,香港,广州,510275
纸质出版日期:2004-06-01
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[1]梁宝鎏,唐强,李德卉,张纯祥.测定古砖年代的光释光和热释光方法的比较研究[J].核技术,2004(06):464-468.
P. L. LEUNG 1 TANG Qiang1, 2 Mike LI1 ZHANG Chunxiang2 1. A comparative study between OSL and TL techniques for the dating of ancient Chinese bricks[J]. Nuclear techniques, 2004, (6): 464-468.
采用单片再生剂量光释光法对分布在不同年代(年龄介于180—1600a)的中国古砖样品的等效剂量进行了测定;在测量过程中插入固定的检测剂量来校正样品对光释光的灵敏度变化。同时我们也采用细颗粒常规高温热释光法对砖样的等效剂量进行了测定。这两种方法对照的结果能较好地吻合。得到的等效剂量之比(De(OSL)/De(TL))介于0.96—1.21之间;平均值为(1.08±0.07)。通过等效剂量和已知年代计算出年剂量为5.07—6.85;与实测的年剂量值相比差别不大。因此;单片再生剂量光释光法用于鉴定古砖样品是一种快速有效的方法。
The single-aliquot regenerative-dose (SAR) protocol to the optically stimulated luminescence (OSL) was applied to measure the paleodose of ancient Chinese bricks with an age range from 180 to 1600 years. In the protocol
sensitivity changes can be corrected by using OSL response to a fixed test dose during measurement. For comparative study between OSL and TL
thermoluminescence (TL) measurement procedures were also applied to determine the paleodose of the bricks. Both results of OSL and TL are in good agreement with
and the paleodose ratios (DeOSL/DeTL ) are between 0.96 and 1.21
with a mean value of 1.08±0.07. The annual dose of the bricks
estimated by the paleodoses and the known ages
ranges from 5.07 to 6.85 mGy/a
comparable with the measured annual dose values. Therefore
it is concluded that the SAR protocol is a rapid and effective OSL technique to authenticate Chinese bricks.
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