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Verification measurements of an eMC algorithm using a 2D ion chamber array

The aim of this study was to assess the suitability of the Im'RT MatriXX 2D ion chamber array for performing verification measurements on the Varian Eclipse electron Monte Carlo (eMC) algorithm for a range of clinical energies (6, 12, and 20 MeV) on a Varian 2100iX linear accelerator. Firstly,...

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Detalles Bibliográficos
Autores principales: Wanklyn, Mark D., Kidane, Ghirmay, Crees, Liz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5874119/
https://www.ncbi.nlm.nih.gov/pubmed/27685111
http://dx.doi.org/10.1120/jacmp.v17i5.6150
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author Wanklyn, Mark D.
Kidane, Ghirmay
Crees, Liz
author_facet Wanklyn, Mark D.
Kidane, Ghirmay
Crees, Liz
author_sort Wanklyn, Mark D.
collection PubMed
description The aim of this study was to assess the suitability of the Im'RT MatriXX 2D ion chamber array for performing verification measurements on the Varian Eclipse electron Monte Carlo (eMC) algorithm for a range of clinical energies (6, 12, and 20 MeV) on a Varian 2100iX linear accelerator. Firstly, the suitability of the MatriXX for measuring percentage depth doses (PDD) in water was assessed, including characterization of the inherent buildup found in the MatriXX. Secondly the suitability of the MatriXX for measuring dose distributions in homogeneous and heterogeneous phantoms was assessed using gamma analysis at [Formula: see text]. It was found that after adjusting the PDD curves for the inherent buildup, that the position of [Formula: see text] measured using the MatriXX agreed to within 1 mm to the PDDs generated using the eMC algorithm for all energies used in this study. Gamma analysis at [Formula: see text] showed very good agreement ([Formula: see text]) for all cases in both homogeneous and heterogeneous phantoms. It was concluded that the Im'RT MatriXX is a suitable device for performing eMC verification and could potentially be used for routine energy checks of electron beams. PACS number(s): 87.55.km, 87.55.Qr
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spelling pubmed-58741192018-04-02 Verification measurements of an eMC algorithm using a 2D ion chamber array Wanklyn, Mark D. Kidane, Ghirmay Crees, Liz J Appl Clin Med Phys Radiation Oncology Physics The aim of this study was to assess the suitability of the Im'RT MatriXX 2D ion chamber array for performing verification measurements on the Varian Eclipse electron Monte Carlo (eMC) algorithm for a range of clinical energies (6, 12, and 20 MeV) on a Varian 2100iX linear accelerator. Firstly, the suitability of the MatriXX for measuring percentage depth doses (PDD) in water was assessed, including characterization of the inherent buildup found in the MatriXX. Secondly the suitability of the MatriXX for measuring dose distributions in homogeneous and heterogeneous phantoms was assessed using gamma analysis at [Formula: see text]. It was found that after adjusting the PDD curves for the inherent buildup, that the position of [Formula: see text] measured using the MatriXX agreed to within 1 mm to the PDDs generated using the eMC algorithm for all energies used in this study. Gamma analysis at [Formula: see text] showed very good agreement ([Formula: see text]) for all cases in both homogeneous and heterogeneous phantoms. It was concluded that the Im'RT MatriXX is a suitable device for performing eMC verification and could potentially be used for routine energy checks of electron beams. PACS number(s): 87.55.km, 87.55.Qr John Wiley and Sons Inc. 2016-09-08 /pmc/articles/PMC5874119/ /pubmed/27685111 http://dx.doi.org/10.1120/jacmp.v17i5.6150 Text en © 2016 The Authors. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/3.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Radiation Oncology Physics
Wanklyn, Mark D.
Kidane, Ghirmay
Crees, Liz
Verification measurements of an eMC algorithm using a 2D ion chamber array
title Verification measurements of an eMC algorithm using a 2D ion chamber array
title_full Verification measurements of an eMC algorithm using a 2D ion chamber array
title_fullStr Verification measurements of an eMC algorithm using a 2D ion chamber array
title_full_unstemmed Verification measurements of an eMC algorithm using a 2D ion chamber array
title_short Verification measurements of an eMC algorithm using a 2D ion chamber array
title_sort verification measurements of an emc algorithm using a 2d ion chamber array
topic Radiation Oncology Physics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5874119/
https://www.ncbi.nlm.nih.gov/pubmed/27685111
http://dx.doi.org/10.1120/jacmp.v17i5.6150
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