The non-uniformity correction factor for the cylindrical ionization chambers in dosimetry of an HDR (192)Ir brachytherapy source

The aim of this study is to derive the non-uniformity correction factor for the two therapy ionization chambers for the dose measurement near the brachytherapy source. The two ionization chambers of 0.6 cc and 0.1 cc volume were used. The measurement in air was performed for distances between 0.8 cm...

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Detalles Bibliográficos
Autores principales: Majumdar, Bishnu, Patel, Narayan Prasad, Vijayan, V.
Formato: Texto
Lenguaje:English
Publicado: Medknow Publications 2006
Materias:
Original Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3004141/
https://www.ncbi.nlm.nih.gov/pubmed/21206670
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author Majumdar, Bishnu
Patel, Narayan Prasad
Vijayan, V.
author_facet Majumdar, Bishnu
Patel, Narayan Prasad
Vijayan, V.
author_sort Majumdar, Bishnu
collection PubMed
description The aim of this study is to derive the non-uniformity correction factor for the two therapy ionization chambers for the dose measurement near the brachytherapy source. The two ionization chambers of 0.6 cc and 0.1 cc volume were used. The measurement in air was performed for distances between 0.8 cm and 20 cm from the source in specially designed measurement jig. The non-uniformity correction factors were derived from the measured values. The experimentally derived factors were compared with the theoretically calculated non-uniformity correction factors and a close agreement was found between these two studies. The experimentally derived non-uniformity correction factor supports the anisotropic theory.
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spelling pubmed-30041412011-01-04 The non-uniformity correction factor for the cylindrical ionization chambers in dosimetry of an HDR (192)Ir brachytherapy source Majumdar, Bishnu Patel, Narayan Prasad Vijayan, V. J Med Phys Original Article The aim of this study is to derive the non-uniformity correction factor for the two therapy ionization chambers for the dose measurement near the brachytherapy source. The two ionization chambers of 0.6 cc and 0.1 cc volume were used. The measurement in air was performed for distances between 0.8 cm and 20 cm from the source in specially designed measurement jig. The non-uniformity correction factors were derived from the measured values. The experimentally derived factors were compared with the theoretically calculated non-uniformity correction factors and a close agreement was found between these two studies. The experimentally derived non-uniformity correction factor supports the anisotropic theory. Medknow Publications 2006 /pmc/articles/PMC3004141/ /pubmed/21206670 Text en © Journal of Medical Physics http://creativecommons.org/licenses/by/2.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Majumdar, Bishnu
Patel, Narayan Prasad
Vijayan, V.
The non-uniformity correction factor for the cylindrical ionization chambers in dosimetry of an HDR (192)Ir brachytherapy source
title The non-uniformity correction factor for the cylindrical ionization chambers in dosimetry of an HDR (192)Ir brachytherapy source
title_full The non-uniformity correction factor for the cylindrical ionization chambers in dosimetry of an HDR (192)Ir brachytherapy source
title_fullStr The non-uniformity correction factor for the cylindrical ionization chambers in dosimetry of an HDR (192)Ir brachytherapy source
title_full_unstemmed The non-uniformity correction factor for the cylindrical ionization chambers in dosimetry of an HDR (192)Ir brachytherapy source
title_short The non-uniformity correction factor for the cylindrical ionization chambers in dosimetry of an HDR (192)Ir brachytherapy source
title_sort non-uniformity correction factor for the cylindrical ionization chambers in dosimetry of an hdr (192)ir brachytherapy source
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3004141/
https://www.ncbi.nlm.nih.gov/pubmed/21206670
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