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The Brazilian AMS Radiocarbon Laboratory (LAC-UFF) and the Intercomparison of Results with CENA and UGAMS

2013; Cambridge University Press; Volume: 55; Issue: 2 Linguagem: Inglês

10.1017/s003382220005743x

1945-5755

Kita Macário, P.R.S. Gomes, R. M. Anjos, Carla Carvalho, R. Linares, Eduardo Queiroz Alves, Fabiana Oliveira, Maikel Diaz, Ingrid Chanca, M F M Silveira, Luiz Carlos Ruiz Pessenda, L M B Moraes, Taipe Campos, Alex Cherkinsky,

Radioactivity and Radon Measurements

After 22 yr of the low-level liquid scintillation counting 14 C laboratory at the Center for Nuclear Energy in Agriculture (CENA) at São Paulo University (USP), Piracicaba, Brazil, and several collaborative projects with Brazilian and international researchers from distinct scientific areas, the first 14 C accelerator mass spectrometry (AMS) laboratory in Latin America was installed at the Physics Institute of the Universidade Federal Fluminense (UFF), Niterói, Brazil. A 250kV single stage accelerator produced by National Electrostatics Corporation began its operation in 2012. In this work, we compare measurements performed at the AMS Radiocarbon Laboratory at UFF (LAC-UFF) with those performed at CENA and the University of Georgia (UGAMS), Georgia, USA. All the results obtained from distinct inorganic and organic samples were in very good agreement.