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

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

Accelerator mass spectrometry · Archaeology · Engineering physics · Geography · Liquid scintillation counting · National laboratory · Nuclear physics · Physics · Radiocarbon dating · Radiochemistry · Chemistry · Environmental Science · Isotope Analysis in Ecology · Nuclear Physics and Applications · Radioactive contamination and transfer · Radioactivity and Radon Measurements

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• Zooarchaeological evidence that the brown mussel ( Perna perna) is a bioinvader of coastal Brazil

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• Stromatolite Growth in Lagoa Vermelha, Southeastern Coast of Brazil

  Open Access•Carla Carvalho, Maria Isabela N Oliveira et al.•Radiocarbon•2018

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• Biogenic carbonate samples

  Open Access•M I Oliveira, Carla Carvalho et al.•Radiocarbon•2024

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• Latin American radiocarbon in web databases and datasets

  Open Access•A Alcántara, Igor Pedroza•Radiocarbon•2025

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• Terrestrial Mollusks as Chronological Records in Brazilian Shellmounds

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• Preliminary Radiocarbon Dating Results of Bone Samples at the Lac-Uff, Brazil

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• Amourins Shellmound

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• Radiocarbon Marine Reservoir Effect on the Northwestern Coast of Cuba

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• Fossil Fuel Environmental Contamination

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• Did Sea-Level Changes Affect the Brazilian Amazon Forest during the Holocene

  Open Access•Mayra Nina Araujo Silva, Marcelo C L Cohen et al.•Radiocarbon•2018

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• Archaeological Earthen Mound Complex in Patos Lagoon, Southern Brazil

  Open Access•Rafael Guedes Milheira, Kita Macario et al.•Radiocarbon•2017

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• The Marine Reservoir Effect on the Coast of Rio de Janeiro

  Open Access•Kita Macario, Eduardo Q Alves et al.•Radiocarbon•2018

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• Holocene Evolution of a Wave-Dominated Barrier-Lagoon System in Rio De Janeiro, Brazil

  Open Access•Rafael Cuellar de Oliveira e Silva, Gilberto Tavares de Macedo Dias et al.•Radiocarbon•2021

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• Potential Use of Archaeological Snail Shells for the Calculation of Local Marine Reservoir Effect

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• Otolith-Based Chronology of Brazilian Shellmounds

  Open Access•Carla Carvalho, Fabiana Oliveira et al.•Radiocarbon•2019

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• Chronological Model of a Brazilian Holocene Shellmound (Sambaqui da Tarioba, Rio de Janeiro, Brazil)

  K D Macario, R C C L Souza et al.•Radiocarbon•2014

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• Investigating a Rock Art Site in Paraná State, South of Brazil

  Open Access•Fabio Lopes, Claudia Parellada et al.•Radiocarbon•2017

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• Brazilian AMS Radiocarbon Laboratory (LAC-UFF) and intercomparison of preliminary results with Sample Preparation Laboratory (Lapa 14 C – Ufba)

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• Optimization of the Amount of Zinc in the Graphitization Reaction for Radiocarbon AMS Measurements at LAC-UFF

  Open Access•Kita Macario, Fabiana M Oliveira et al.•Radiocarbon•2017

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• Radiocarbon dating in South America and the impact of the continent's first 14 C‐AMS facility to archaeological research

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• Vegetation dynamics during the late Pleistocene in the Barreirinhas region, Maranhão State, northeastern Brazil, based on carbon Isotopes in soil organic matter

  Open Access•Luiz Carlos Ruiz Pessenda, Adauto De Souza Ribeiro et al.•Quaternary Research•2004

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• Late Quaternary Vegetation Dynamics in the Southern Amazon Basin Inferred from Carbon Isotopes in Soil Organic Matter

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• Status of the AMS facility at the University of Georgia

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• Modifying a sealed tube zinc reduction method for preparation of AMS graphite targets

  Open Access•Xiaomei Xu, Susan E Trumbore et al.•Nuclear Instruments and Methods…•2007

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• Last glacial maximum (LGM) vegetation changes in the Atlantic Forest, southeastern Brazil

  Open Access•S E M G Saia, L C R Pessenda et al.•Quaternary International•2008

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• Holocene palaeoenvironmental reconstruction in norteastern Brazi inferred from polen,, charcoal and carboon isotope records

  Open Access•Luiz Carlos Ruiz Pessenda, Marie-Pierre Ledru et al.•The Holocene•2005

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• Mid- and late-Holocene sedimentary process and palaeovegetation changes near the mouth of the Amazon River

  Open Access•José Tasso F Guimarães, Marcelo C L Cohen et al.•The Holocene•2011

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• The Antiquity of the Prehistoric Settlement of the Central-South Brazilian Coast

  Open Access•T A Lima, K D Macario et al.•Radiocarbon•2002

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• Chronology of the Atmospheric Mercury in Lagoa da Pata Basin, Upper Rio Negro Region of Brazilian Amazon

  Open Access•G M Santos, R C Cordeiro et al.•Radiocarbon•2001

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• Discussion Reporting of 14 C Data

  Open Access•Minze Stuiver, Henry A Polach•Radiocarbon•1977

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• The Long-Term Tupiguarani Occupation in Southeastern Brazil

  Open Access•Kita Macario, K D Macario et al.•Radiocarbon•2009

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• Origin and dynamics of soil organic matter and vegetation changes during the Holocene in a forest-savanna transition zone, Brazilian Amazon region

  Open Access•Luiz Carlos Ruiz Pessenda, R Boulet et al.•The Holocene•2001

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• Holocene fire and vegetation changes in southeastern Brazil as deduced from fossil charcoal and soil carbon isotopes

  Open Access•Luiz Carlos Ruiz Pessenda, L Pessenda•Quaternary International•2003

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