A new AMS-system has been installed at CIRCE (Center for Isotopic Research on Cultural and Environmental Heritage) for the "Dipartimento di Scienze Ambientali, Seconda Università di Napoli" in Caserta/Italy. It was produced by National Electrostatics Corp. Middleton, WI/USA and arrived at CIRCE middle of January 05. The installation as well as the acceptance tests were completed end of February 05. The system consists of a sputter ion source for 40 cathodes (MC-SNICS). The sequencing injection is performed by a voltage biased magnet chamber (MBS). The 3 MV tandem accelerator has two Pelletron chains as a charging system, which is controlled by a generating volt meter feedback for terminal potential stabilization. Stripping is performed by a recirculating gas stripper system. The 90 degree analyzing magnet is followed by a 90 degree electrostatic analyzer which guides rare isotopes into the ionization chamber telescope while abundant isotopes are measured in offset Faraday cups. At first, the system is intended for Radiocarbon-AMS. For future Al and Be AMS only minor upgrades are needed. The acceptance tests included a run with iodine and the magnets are designed to bend heavy isotopes like Uranium. Concerning Radiocarbon AMS, the first measurements of unknown samples, prepared in the internal preparation laboratory, already yielded results of high precision and 14C dating is in full activity.
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See more of Poster Session I
See more of The 10th International Conference on Accelerator Mass Spectrometry (September 5-10, 2005)