Performance tests of a special ionization chamber for X-rays in mammography energy range

Autores/as

  • Jonas Oliveira da Silva Universidade Federal de Goiás image/svg+xml
  • Linda V E Caldas Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP

DOI:

https://doi.org/10.15392/bjrs.v6i2A.501

Palabras clave:

ionization chamber, mammography, dosimetry

Resumen

A special mammography homemade ionization chamber was developed to be applied for mammography energy range dosimetry. This chamber has a total sensitive volume of 6 cm³ and is made of a PMMA body and graphite coated collecting electrode. Performance tests as saturation, ion collection efficiency, linearity of chamber response versus air kerma rate and energy dependence were determined. The results obtained with this special homemade ionization chamber are within the limits stated in international recommendations. This chamber can be used in quality control programs of mammography energy range. All measurements were carried out at the Calibration Laboratory of IPEN.

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Biografía del autor/a

  • Jonas Oliveira da Silva, Universidade Federal de Goiás
    Instituto de Física
  • Linda V E Caldas, Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP
    Gerência de Metrologia das Radiações

Referencias

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Publicado

2018-07-19

Número

Vol. 6 Núm. 2A (Suppl.) (2018): RADIO 17

Sección

Articles

Categorías

Licencia

Derechos de autor 2021 Brazilian Journal of Radiation Sciences (BJRS)

Creative Commons License

Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.

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Cómo citar

Performance tests of a special ionization chamber for X-rays in mammography energy range. Brazilian Journal of Radiation Sciences (BJRS), Rio de Janeiro, Brazil, v. 6, n. 2A (Suppl.), 2018. DOI: 10.15392/bjrs.v6i2A.501. Disponível em: https://bjrs.org.br/revista/index.php/REVISTA/article/view/501. Acesso em: 17 jul. 2025.