The actual grasp of an operation form in iron manufacture remains of the ancient times -Using radiocarbon dating with an accelerator mass spectrometry -

为了检验古代制铁遗迹中的一种操作形式，我们提取了高纯度铁样品中固有的碳，我们需要高度精确地进行样品调整。因此，我们开发了燃烧/ CO_2分离/ a精炼线，以尽可能地消除现代碳污染的可能性。碳提取效率超过90%，即使我在碳含量很少的情况下也能提供燃烧条件。因此，我有可能在不受现代碳污染的情况下获得^< 14bb0 C的年龄。此外，我用加速器质谱法对挖掘出的铁样品进行了放射性碳定年，我可以掌握一个考古遗迹的年代值，它们显示的年代与显示考古遗迹年龄的索引遗迹相同。它从我当时使用的木炭中变得清晰起来，这些研究结果挖掘出的铁遗骸的碳历史能够证实放射性碳定年法的合法性和有效性，这是由测量的铁遗骸组成的。但另一方面，也出现了各种考试问题。一件值得注意的事情是，在木炭和^<14>C用于制铁的年代中观察到的时间差，其中包括由此产生的铁。因此，假定在这一次的差别中存在着一定程度的规则性质。在锻钢中，δ ^<13>C值大于具有代表性的木炭δ ^<13>C值，这是铁材料中碳源的原因，显然可以产生碳同位素的自由。

In order to examine an operation form in iron manufacture remains of the ancient times, We extracted the carbon which was inherent in an iron sample in high purity and we were highly precise and had to do sample adjustment. Therefore, We developed combustion / CO_2 separation / a refinement line of the sample which could remove possibility of pollution by modern carbon as much as possible. And the carbon extraction efficiency more than 90% led a combustion condition to be provided even if I put it when there were a little carbon contents. As a result, I get possible to get ^<14>C age without pollution by modern carbon.In addition, I did the radiocarbon dating with an accelerator mass spectrometry of the excavated iron sample which I could grasp of a generation value of archeology of remains, They showed the age the same as the index remains which showed an age of archeology of remains. It became clear to come from the charcoal which I used at the time, and the carbon history of iron remains excavated by these results of research was able to confirm legitimacy and the effectiveness of what radiocarbon dating of being made of iron remains measured.However, on the other hand, various examination problems occurred. A remarkable thing is for a time difference to be watched in charcoal and ^<14>C age used for iron manufacture of iron generated thereby among other things. It is supposed so that there is rule nature of a certain degree in a difference between this time. Furthermore, In forging steel, The δ ^<13>C showed a value bigger than representative δ ^<13>C of the charcoal which was the cause of a carbon origin in the iron material, and it became clear that carbon isotope discretion could be generated.