Dosimetric evaluation of newly developed well-type ionization chamber for use in the calibration of brachytherapy sources

The well-type ionization chamber has been designed for convenient use in brachytherapy source strength calibration. The chamber has a volume of 240 cm(3), weight of 2.5 kg, and is open to atmospheric conditions. The well-type ionization chamber dosimetric characteristics such as leakage current, sta...

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Detalles Bibliográficos
Autores principales: Saminathan, Sathiyan, Godson, Henry Finlay, Ponmalar, Retna, Manickam, Ravikumar, Mazarello, James
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2016
Materias:
Original Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5228046/
https://www.ncbi.nlm.nih.gov/pubmed/28144115
http://dx.doi.org/10.4103/0971-6203.195187
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author Saminathan, Sathiyan
Godson, Henry Finlay
Ponmalar, Retna
Manickam, Ravikumar
Mazarello, James
author_facet Saminathan, Sathiyan
Godson, Henry Finlay
Ponmalar, Retna
Manickam, Ravikumar
Mazarello, James
author_sort Saminathan, Sathiyan
collection PubMed
description The well-type ionization chamber has been designed for convenient use in brachytherapy source strength calibration. The chamber has a volume of 240 cm(3), weight of 2.5 kg, and is open to atmospheric conditions. The well-type ionization chamber dosimetric characteristics such as leakage current, stability, scattering effect, ion collection efficiency, and nominal response with energy were studied. The evaluated dosimetric characteristics of well-type ionization chamber were compared with two other commercially available well-type ionization chambers. The study shows that the newly developed well-type ionization chamber is reliable for air-kerma strength calibration. The results obtained confirm that this chamber can be used for the calibrations of high-dose rate brachytherapy sources.
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spelling pubmed-52280462017-01-31 Dosimetric evaluation of newly developed well-type ionization chamber for use in the calibration of brachytherapy sources Saminathan, Sathiyan Godson, Henry Finlay Ponmalar, Retna Manickam, Ravikumar Mazarello, James J Med Phys Original Article The well-type ionization chamber has been designed for convenient use in brachytherapy source strength calibration. The chamber has a volume of 240 cm(3), weight of 2.5 kg, and is open to atmospheric conditions. The well-type ionization chamber dosimetric characteristics such as leakage current, stability, scattering effect, ion collection efficiency, and nominal response with energy were studied. The evaluated dosimetric characteristics of well-type ionization chamber were compared with two other commercially available well-type ionization chambers. The study shows that the newly developed well-type ionization chamber is reliable for air-kerma strength calibration. The results obtained confirm that this chamber can be used for the calibrations of high-dose rate brachytherapy sources. Medknow Publications & Media Pvt Ltd 2016 /pmc/articles/PMC5228046/ /pubmed/28144115 http://dx.doi.org/10.4103/0971-6203.195187 Text en Copyright: © 2016 Journal of Medical Physics http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Original Article
Saminathan, Sathiyan
Godson, Henry Finlay
Ponmalar, Retna
Manickam, Ravikumar
Mazarello, James
Dosimetric evaluation of newly developed well-type ionization chamber for use in the calibration of brachytherapy sources
title Dosimetric evaluation of newly developed well-type ionization chamber for use in the calibration of brachytherapy sources
title_full Dosimetric evaluation of newly developed well-type ionization chamber for use in the calibration of brachytherapy sources
title_fullStr Dosimetric evaluation of newly developed well-type ionization chamber for use in the calibration of brachytherapy sources
title_full_unstemmed Dosimetric evaluation of newly developed well-type ionization chamber for use in the calibration of brachytherapy sources
title_short Dosimetric evaluation of newly developed well-type ionization chamber for use in the calibration of brachytherapy sources
title_sort dosimetric evaluation of newly developed well-type ionization chamber for use in the calibration of brachytherapy sources
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5228046/
https://www.ncbi.nlm.nih.gov/pubmed/28144115
http://dx.doi.org/10.4103/0971-6203.195187
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