Evaluation of some dosimetric properties of a dedicated plane parallel ionization chamber for radiotherapy electron beams
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Redalyc
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedade Brasileira de Proteção Radiológica - SBPR
2018
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| _version_ | 1876452893003874304 |
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| author | Jonas Oliveira da Silva |
| author_facet | Jonas Oliveira da Silva |
| contents | Evaluation of some dosimetric properties of a dedicated plane parallel ionization chamber for radiotherapy electron beams Jonas Oliveira da Silva Fernanda Beatrice Conceição Nonato Francisco Glaildo Almeida Sampaio Linda V. Ehlin Caldas Biología radiotherapy electron beams Ionization chambers radiation dosimetry Ionization chambers are the reference detectors for electron beam dosimetry. In this paper a dedicated radiotherapy plane parallel ionization chamber manufactured with low cost materials is presented for dosimetry in electron beams. The ionization chamber tested has a sensitive volume of 0.4 cm³. Both the collecting electrode and the guard ring were painted with a homogeneous mixture of nail polish and graphite. The dedicated ionization chamber presented a linear response with electron absorbed dose within the range 0.5 to 8.0 Gy, an increase of its response with the field size increasing, an angular dependence within ±5°, as recommended by international standards, and a polarity effect of 0.78% according to the field size. Considering the results obtained, it is possible to conclude that the plane parallel ionization chamber tested in this work presents potential use for elec - tron beam dosimetry in clinical routine. 2018 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280830005 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.3 Vol.6 |
| format | Artículo científico |
| id | redalyc_722280830005 |
| institution | Redalyc |
| language | en |
| publishDate | 2018 |
| publisher | Sociedade Brasileira de Proteção Radiológica - SBPR |
| spellingShingle | Evaluation of some dosimetric properties of a dedicated plane parallel ionization chamber for radiotherapy electron beams Jonas Oliveira da Silva Biología radiotherapy electron beams Ionization chambers radiation dosimetry Evaluation of some dosimetric properties of a dedicated plane parallel ionization chamber for radiotherapy electron beams Jonas Oliveira da Silva Fernanda Beatrice Conceição Nonato Francisco Glaildo Almeida Sampaio Linda V. Ehlin Caldas Biología radiotherapy electron beams Ionization chambers radiation dosimetry Ionization chambers are the reference detectors for electron beam dosimetry. In this paper a dedicated radiotherapy plane parallel ionization chamber manufactured with low cost materials is presented for dosimetry in electron beams. The ionization chamber tested has a sensitive volume of 0.4 cm³. Both the collecting electrode and the guard ring were painted with a homogeneous mixture of nail polish and graphite. The dedicated ionization chamber presented a linear response with electron absorbed dose within the range 0.5 to 8.0 Gy, an increase of its response with the field size increasing, an angular dependence within ±5°, as recommended by international standards, and a polarity effect of 0.78% according to the field size. Considering the results obtained, it is possible to conclude that the plane parallel ionization chamber tested in this work presents potential use for elec - tron beam dosimetry in clinical routine. 2018 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280830005 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.3 Vol.6 |
| title | Evaluation of some dosimetric properties of a dedicated plane parallel ionization chamber for radiotherapy electron beams |
| topic | Biología radiotherapy electron beams Ionization chambers radiation dosimetry |
| url | https://www.redalyc.org/articulo.oa?id=722280830005 |