Activimeter “in situ” calibration methodology to 111In and 123I

Authors

  • Elaine Wirney Martins Instituto de Pesquisas Energéticas e Nucleares
  • Maria da Penha Instituto de Pesquisas Energéticas e Nucleares

DOI:

https://doi.org/10.15392/2319-0612.2023.2212

Keywords:

activimeter, calibration, methodology “in situ”

Abstract

The activimeter calibration has the purpose of ensure greater reliability in measurement results, hence the activimeters used are commonly installed in controlled areas and, in some cases, with difficult access. The activimeter “in situ” calibration methodology presented in this work allows its execution only with the displacement of the radioactive samples and not of the activimeter itself, which simplifies the procedure of nuclear medicine services and at radiopharmaceuticals production centers, without affecting the quality and accuracy of measurements. After the application of the methodology by qualified technicians, the obtained results of the tested activimeters showed its importance since the calibration factors can present correction of up to 5% for 111In and greater than 5% for 123I.

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References

KUAHARA, L. T.; CORREA, E. L.; POTIENS, M. P. A. Análise da distribuição de radiofármacos para serviços de medicina nuclear no Brasil. International Nuclear Atlantic Conference, Recife. 2013.

NATIONAL PHYSICAL LABORATORY. Protocol for establishing and maintaining the calibration of medical radionuclide calibrators and their quality control. A National Measurement Good Practice. Middlesex, United kingdom: 2006 (Guide n.93).

LABORATOIRE NATIONAL HENRI BECQUEREL. Guide d’utilisation et de controle qua-lité dês activimètres. Societé française de radiopharmacie, França, 2006.

INTERNATIONAL ELECTROTECHNICAL COMISSION. Medical electrical equipment – Dosimeters with ionization chambers andlor semi- conductor detectors as used in X-ray diagnostic imaging. Geneva, 1997.

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Published

2023-07-19

How to Cite

Activimeter “in situ” calibration methodology to 111In and 123I. Brazilian Journal of Radiation Sciences, Rio de Janeiro, Brazil, v. 11, n. 1A (Suppl.), p. 1–9, 2023. DOI: 10.15392/2319-0612.2023.2212. Disponível em: https://bjrs.org.br/revista/index.php/REVISTA/article/view/2212. Acesso em: 25 dec. 2024.

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