In this overview the technique of accelerator mass spectrometry AMS and its use are described. AMS is a highly sensitive method of counting atoms. It is used to detect very low concentrations of natural isotopic abundances typically in the range between 10 and 10 of both radionuclides and stable nuclides. The main advantages of AMS compared to conventional radiometric methods are the use of smaller samples mg and even sub-mg size and shorter measuring times less than 1 hr.
Accelerator mass spectrometry AMS is a form of mass spectrometry that accelerates ions to extraordinarily high kinetic energies before mass analysis.
Applied Physics A. The integration in the accelerator-based facility at CEDAD Centro di Datazione e DiagnosticaUniversity of Lecce, of a state-of-the art AMS accelerator mass spectrometry 14 C dating system, and three different beam lines for IBA ion beam analysis compositional investigations, has given the possibility of developing an integrated IBA-AMS approach to the study of a wide range of archaeological problems. Here we present three cases where in air IBA methods were involved for the elemental characterisation of objects found in archaeological contexts, chronologically defined on the basis of high resolution AMS 14 C measurements.
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