High precision ¹⁴C AMS at CIRCE

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• 作者：Filippo Terrasi ; Nicola De Cesare ; Antonio D’ ; Onofrio ; Carmine Lubritto ; Fabio Marzaioli ; Isabella Passariello ; Detlef Rogalla ; Carlo Sabbarese ; Gianluca Borriello ; Giovanni Casa ; Antonio Palmie
• 关键词：Accelerator mass spectrometry ; Radiocarbon
• 刊名：Nuclear Instruments and Methods in Physics Research Section B ; Beam Interactions with Materials and Atoms
• 出版年：2008
• 期刊代码：42_0168583x
• 类别：ph
• 出版时间：May 2008
• 卷：266
• 期：10
• 页码：2221-2224
• 文件大小：370 K

摘要

The CIRCE AMS system started operation in March 2005. The measurement of isotopic ratios ¹⁴C/¹²C in samples of archaeological and environmental interest has rapidly attained high precision and accuracy levels in routine operation. The results of the intercomparison campaign in the framework of the VIRI program, as well as the outcome of a statistical analysis of the about 200 control measurements performed with standard samples, have shown the capability of the whole system for high precision measurements (δR/R < 0.3%), allowing systematic investigations in both archaeological and environmental sciences. ²⁶Al AMS has been implemented for the measurement of the astrophysically relevant ²⁵Mg(p,γ)²⁶Al reaction cross section, while a beam line is under construction for the measurement of actinides isotopic ratios.