Condições de radiação em tomografia computadorizada (TC): determinação e calibração de dosímetros

Lúcio Chagas Andrade; José Guilherme Pereira Peixoto

doi:10.15392/bjrs.v5i3-A.299

Condições de radiação em tomografia computadorizada (TC): determinação e calibração de dosímetros

Authors

Lúcio Chagas Andrade Instituto de Radioproteção e Dosimetria
José Guilherme Pereira Peixoto Instituto de Radioproteção e Dosimetria - IRD

DOI:

https://doi.org/10.15392/bjrs.v5i3-A.299

Keywords:

radiation quality, CT, dosimetry in CT

Abstract

RQT is the standard for radiation conditions in computed tomography. It simulates a beam unrelieved of a CT scanner . The camera pencil ionization dosimeter is used in CT. The LNMRI become known characterization of RQT radiation conditions and the secondary standard calibration for type pencil ionisation chambers in its lab. The obtained beam has the characteristics required by IEC 61267. The results of the calibration presented combined uncertainty expanded to 95.45% from 2.22%.

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References

J. G. PEIXOTO and C. E. de ALMEIDA, “Protocolo técnico da comparação bilateral em radiologia diagnóstica: Partes 1, 2 e 3,” Congr. braasileiro Metrol. das radiações Ioniz. - CBMRI, vol. 2, 2015.

I. E. C. IEC, Medical diagnostic x-ray equipment - Radiationconditions for use in the determination of characteristics, IEC 61267. Geneva: IEC 61267, 2005.

I. A. E. A. IAEA, “Technical Reports Series no: 457. Dosimetry in Diagnostic Radiology: An International Code of Ptactice,” Vienna, 2007.

J. G. P. PEIXOTO, “Rastreabilidade e controle de qualidade em mamografia; Medidas e modelos,” Universidade do Estado do Rio de Janeiro - UERJ, Rio de Janeiro, RJ, Brasil, 2002.

J. G. P. PEIXOTO, M. P. POTIENS, M. MCEWEN, P. G. CUNHA, J. A. GONZÁLES, C. E. V. DE ALMEIDA, F. SPANO, W. W. PEREIRA, S. P. LEITE, J. U. DELGADO, P. R. COSTA, D. Y. NERSISSIAN, and C. SALATA, Iniozation Radiation Metrology, 1st ed. Rio de Janeiro, RJ, Brazil, 2016.

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Published

2017-11-20

How to Cite

Andrade, L. C., & Peixoto, J. G. P. (2017). Condições de radiação em tomografia computadorizada (TC): determinação e calibração de dosímetros. Brazilian Journal of Radiation Sciences, 5(3-A). https://doi.org/10.15392/bjrs.v5i3-A.299

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Issue

Vol. 5 No. 3-A (2017)

Section

III Brazilian Congress on Metrology of Ionizing Radiation

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