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Large sample neutron activation analysis of irregular-shaped pottery artifacts

机译:不规则形状陶器大样本中子活化分析

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摘要

The large sample neutron activation analysis (LSNAA) method developed at NCSR "Demokritos" for large and irregular-shaped objects was applied for the analysis of a Peruvian pottery artifact with the shape of an animal. The correction factors required for neutron self-shielding and gamma-ray self-attenuation within the sample material were derived through Monte Carlo simulations using the MCNP code, based on an accurate model obtained by computerized tomography X-ray scanning. The LSNAA results were compared with those from conventional instrumental neutron activation analysis (INAA) and a very good agreement was observed.
机译:由NCSR“ Demokritos”开发的大样本中子活化分析(LSNAA)方法用于分析大型和不规则形状的物体,用于分析具有动物形状的秘鲁陶器。样品材料中的中子自屏蔽和伽马射线自衰减所需的校正因子,是通过使用计算机X线断层摄影X射线扫描获得的精确模型,使用MCNP代码通过蒙特卡罗模拟得出的。将LSNAA结果与常规仪器中子活化分析(INAA)的结果进行了比较,观察到了很好的一致性。

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