SU-FF-T-165: Replacement of Film and Ion Chamber Measurements by Electronic Portal Dosimetry for IMRT QA

2005 ◽  
Vol 32 (6Part9) ◽  
pp. 1987-1988
Author(s):  
C Beltran ◽  
M Herman
Keyword(s):  
Imrt Qa ◽  
Ion Chamber ◽  
Portal Dosimetry ◽  
Chamber Measurements

SU-FF-T-142: Comparison of Ion Chamber and EPID Portal Dosimetry for Dynamic IMRT QA

2006 ◽  
Vol 33 (6Part9) ◽  
pp. 2081-2081
Author(s):  
C Beltran ◽  
M Herman ◽  
J Kruse
Keyword(s):  
Imrt Qa ◽  
Ion Chamber ◽  
Portal Dosimetry

Predicting gamma passing rates for portal dosimetry‐based IMRT QA using machine learning

2019 ◽  
Vol 46 (10) ◽  
pp. 4666-4675 ◽  
Author(s):  
Dao Lam ◽  
Xizhe Zhang ◽  
Harold Li ◽  
Yang Deshan ◽  
Brayden Schott ◽  
...  
Keyword(s):  
Machine Learning ◽  
Imrt Qa ◽  
Passing Rates ◽  
Portal Dosimetry

SU-GG-T-80: Comparisons of Measured Doses Using Ion Chamber and Matrixx for IMRT-QA

2008 ◽  
Vol 35 (6Part10) ◽  
pp. 2744-2744 ◽  
Author(s):  
M Yu ◽  
N Nelson ◽  
D Gladstone
Keyword(s):  
Imrt Qa ◽  
Ion Chamber

SU-FF-T-232: IMRT QA Using a Hybrid Mapcheck / Electronic Portal Dosimetry Environment

2009 ◽  
Vol 36 (6Part12) ◽  
pp. 2574-2574 ◽  
Author(s):  
H Malhotra ◽  
M Bakhtiari ◽  
L Kumaraswamy ◽  
D Bailey ◽  
J Liu ◽  
...  
Keyword(s):  
Imrt Qa ◽  
Portal Dosimetry

Dosimetry in MARS spectral CT: TOPAS Monte Carlo simulations and ion chamber measurements

2017 ◽  
Vol 40 (2) ◽  
pp. 297-303
Author(s):  
Gray Lu ◽  
Steven Marsh ◽  
Jerome Damet ◽  
Pierre Carbonez ◽  
John Laban ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Spectral Ct ◽  
Ion Chamber ◽  
Chamber Measurements

Portal dosimetry using a liquid ion chamber matrix: Dose response studies

1995 ◽  
Vol 22 (7) ◽  
pp. 1101-1106 ◽  
Author(s):  
Yunping Zhu ◽  
Xun-Qing Jiang ◽  
Jake Van Dyk
Keyword(s):  
Dose Response ◽  
Ion Chamber ◽  
Portal Dosimetry

Determination of penumbral widths from ion chamber measurements

2005 ◽  
Vol 32 (12) ◽  
pp. 3636-3640 ◽  
Author(s):  
D. Herrup ◽  
J. Chu ◽  
H. Cheung ◽  
M. Pankuch
Keyword(s):  
Ion Chamber ◽  
Chamber Measurements

Dosimetric verification and quality assurance for intensity-modulated radiation therapy using Gafchromic® EBT3 film

2017 ◽  
Vol 17 (1) ◽  
pp. 85-95 ◽  
Author(s):  
Khalid Iqbal ◽  
Muhammad Mazhar Iqbal ◽  
Muhammad Akram ◽  
Saima Altaf ◽  
Saeed Ahmad Buzdar
Keyword(s):  
Quality Assurance ◽  
Radiation Therapy ◽  
Intensity Modulated Radiation Therapy ◽  
Imrt Qa ◽  
Ion Chamber ◽  
Intensity Modulated ◽  
Dosimetric Verification ◽  
Therapy Quality ◽  
Dosimetric Assessment ◽  
Radiation Therapy Quality Assurance

AbstractPurposeThis study aimed to examine the dosimetric properties of Gafchromic® EBT3 film and intensity-modulated radiation therapy quality assurance (IMRT QA).Materials and methodsBeams characteristics dosimetric properties and 20 IMRT plans were created and irradiated on Varian dual-energy DHX-S Linac for 6 and 15 MV energies. EBT3 films were analysed using ‘film Pro QA 2014’ software.ResultsThe dosimetric comparison of EBT3 film (for red channel dosimetry) and ionisation ion chamber measurement showed that average deviations of symmetry, flatness, central axis, penumbra (left) and penumbra (right) of dose profile were 0·18, 1·34, 0·49%, 3·68 and 3·61 mm for 6 MV and 0·10, 1·3, 0·45, 2·65 and 2·71 mm for 15 MV, respectively. The blue and green channels dosimetry showed greater dose deviation as compared with red channel. IMRT QA verification plan complied about 95% at all different criteria. Reproducibility, stability and face orientation of film were within 1·4% for red channel.ConclusionsThe results advocate that the film can be used not only for dosimetric assessment but also as a reliable IMRT QA tool.

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