Adaptations of a Mobile Lab for Analysis of Th-232 in Soil Samples Using Well-Type NaI (Tl) Scintillation Gamma Spectrometry

Authors

  • Luciano Santa Rita Oliveira Instituto de Defesa Química, Biológica, Radiológica e Nuclear (IDQBRN/CTEx)
  • Aneuri Souza de Amorim Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN/CTEx
  • Avelino dos Santos Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN/CTEx
  • Mario Cesar Viegas Balthar Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN/CTEx
  • Paulo Ricardo Teles de Vilela Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN/CTEx
  • Ana Carolina dos Anjos da Cruz Izidório Instituto Alberto Luiz Coimbra de Pós-gradução e Pesquisa de Engenharia - COPPE-RJ
  • Dayana Azeredo da Conceição Universidade castelo Branco - UCB
  • Zuila Augusta Amaral da Gama Santa Brigida Universidade Castelo Branco
  • Hélio de Carvalho Vital Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN/CTEx
  • Sergio Barros Paixão Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN/CTEx

DOI:

https://doi.org/10.15392/bjrs.v8i1.979

Keywords:

Cintilador, Th-232, Espectrometria

Abstract

The identification of the occurrence of 232Th, by measuring the energies of the children radioisotopes 228Ac, 208Tl, 212 Bi and 212Pb, in their places of origin, using the Mobile Lab for Identification of Radiological and Nuclear Agents - LabMovelRN, by discriminating their environmental concentration normal and NORM [1] is important for the performance of the operational teams of the Brazilian Army Chemical, Biological, Radiological and Nuclear Defense Institute (IDQBRN), optimizing their time of action, and reducing the chain of custody of the sample. Due to the operational difficulty of using HPGe detectors in LabMovelRN, an adaptation is being carried out in the laboratory in order to allow the analysis of 232Th in soil samples by the gamma spectrometry technique using scintillation detectors [2] of NaI (Tl) type well as the characterization of the response of this scintillator detector in energy, resolution and energy efficiency up to 3,000 keV.

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Author Biographies

  • Luciano Santa Rita Oliveira, Instituto de Defesa Química, Biológica, Radiológica e Nuclear (IDQBRN/CTEx)
    Exército Brasileiro
  • Aneuri Souza de Amorim, Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN/CTEx
    Exército Brasileiro
  • Avelino dos Santos, Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN/CTEx
    Exército Brasileiro
  • Mario Cesar Viegas Balthar, Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN/CTEx
    Exército Brasileiro
  • Paulo Ricardo Teles de Vilela, Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN/CTEx
    Exército Brasileiro
  • Ana Carolina dos Anjos da Cruz Izidório, Instituto Alberto Luiz Coimbra de Pós-gradução e Pesquisa de Engenharia - COPPE-RJ
    Universidade
  • Dayana Azeredo da Conceição, Universidade castelo Branco - UCB
    Universidade
  • Zuila Augusta Amaral da Gama Santa Brigida, Universidade Castelo Branco
    Universidade
  • Hélio de Carvalho Vital, Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN/CTEx
    Exército Brasileiro
  • Sergio Barros Paixão, Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN/CTEx
    Exército Brasileiro

References

IAEA-TECDOC-1472, International Atomic Energy Agency, 2005. Naturally Ocurring Radioactive Materials (NORM IV), Poland

MONTANHEIRO, M. N. S.; V. F.; NASCIMENTO Filho e PINTO F. A. – Introdução à espectrometria gama. Boletim Didático no 021, 1977, 37 p., CENA, Piracicaba, SP

AQUINO, R. R., 2010, Avaliação da radioatividade natural em areias das praias da Grande Vitória, Espírito Santo - dissertação de mestrado, IPEN/USP, SP

UNSCEAR, United Nations Scientific Committee on the Effects of Atomic Radiation, 2000. Sources, Effects and Risks of IonizingRadiation, United Nations, New York

TAUHATA, L.; SALATI, I. P. A.; DI PRINZIO, M. A. R. R. - Radioproteção e dosimetria: Fundamentos 10a revisão novembro/2014 - Rio de Janeiro - IRD/CNEN. 345p. ISBN: 978-85-67870-02-1

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Published

2020-03-22

Issue

Vol. 8 No. 1 (2020)

Section

Articles

License

Copyright (c) 2020 Brazilian Journal of Radiation Sciences

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How to Cite

Adaptations of a Mobile Lab for Analysis of Th-232 in Soil Samples Using Well-Type NaI (Tl) Scintillation Gamma Spectrometry. Brazilian Journal of Radiation Sciences, Rio de Janeiro, Brazil, v. 8, n. 1, 2020. DOI: 10.15392/bjrs.v8i1.979. Disponível em: https://bjrs.org.br/revista/index.php/REVISTA/article/view/979. Acesso em: 22 dec. 2024.
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