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NATURAL RADIOCARBON DATING (Ⅱ)
Author(s): The C14 Laboratory of the Institute of Geology, State Seismological Bureau
Pages: 383-
388
Year: 1978
Issue:
4
Journal: Chinese Journal of Geology(Scientia Geologica Sinica)
Keyword: 液体闪烁计数法; 放射性碳; 年代测定; 乙炔气体; 地质样品; 泥炭层; 样品量; 长沙马王堆; 催化剂作用; 淤泥层;
Abstract: Some data of radiocarbon dating for geological specimens with acetylene gas counting and liquid scintillation counting are given in this paper. The method of sample pretreatment and acetylene preparation as well as the experimental procedures and conditions in benzene synthesis are introduced here. In the counting of liquid scintillation, the decreasing effects of the lead screen on the background resulted from the soft component of cosmic radiation in the detector is considered. The form of sample container and volatility of benzene are also presented here. Finally, the results of radiocarbon dating are listed.
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