摘要
为识别陶器有否经过人工辐照 ,本文用细粒样品的“细粒技术”和“前剂量技术”分别测定一件陶器的古剂量。如果细粒技术测量得到的古剂量大于前剂量技术测量得到的古剂量 ,那么 ,其差额部分就是α剂量 ,有α成分的古剂量是天然辐照的 ,那么这件陶器就是古代的 ;如果两个古剂量近似相等 ,说明古剂量中没有α成分 ,没有α成分的古剂量是人工辐照的 。
If a modern pottery is artificially irradiated by γ-rays of 60 Co source, the modern will become ancient when the pottery is dated by the thermoluminescence technique. For distinguishing artificial irradiation a study was made. Meanwhile the 'fine-grain' and 'pre-dose' techniques were used respectively for measurement of the paleodose in a fine-grain sample from the same pottery. If the paleodose measured by the fine-grain technique is greater than that by the pre-dose techniques, we can affirm that the difference between two paleodoses is due to α dose and this paleodose containing α component results from natural radiation, the pottery therefore is ancient. If two paleodoses are equal approximately, i.e. α dose is not included in the paleodose, the paleodose comes from artificial γ irradiation and the pottery is an imitation.
出处
《核技术》
CAS
CSCD
北大核心
2003年第1期48-52,共5页
Nuclear Techniques
基金
香港城市大学研究基金 (70 0 110 4)资助
关键词
α剂量
热释光
仿古陶器
人工辐照
鉴定
年代测定
考古
Thermoluminescence dating, Ancient pottery imitation, Artificial irradiation, Discrimination
