Produção Nacional
Modelling Natural Radioactivity in Sand Beaches of Guarapari, Espírito Santo State, Brazil
2013; Scientific Research Publishing; Volume: 03; Issue: 02 Linguagem: Inglês
10.4236/wjnst.2013.32011
ISSN2161-6809
AutoresDanilo C. Vasconcelos, Patrícia A.L. Reis, Cláubia Pereira, Arno Heeren de Oliveira, Talita Oliveira Santos, Zildete Rocha,
Tópico(s)Graphite, nuclear technology, radiation studies
ResumoUsing gamma-ray spectrometry, the activity concentration of naturally occurring radionuclides 226Ra, 212Pb, 214Pb, 232Th, and 40K was determined in sand beaches samples from different areas in Guarapari, Espírito Santo state, from Brazil. The absorbed dose rates and annual effective dose were calculated and the results were compared with the internationally accepted values as well as others high background radiation areas (HBRAs). The activity concentration of the 232Th in Areia Preta as well as the absorbed dose rates and annual effective dose were higher than the others regions compared. The results show that Areia Preta in Guarapari has higher background found in beaches in world. This work is part of a research project for the natural background determination of the Brazilian coast.
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