Comparison of dosimeter response: Ionization chamber, TLD, and Gafchromic EBT2 film in 3D-CRT, IMRT, and SBRT techniques for lung cancer

A. Fitriandini; W. E. Wibowo; null Supriyanto

doi:10.1088/1742-6596/694/1/012006

Comparison of dosimeter response: Ionization chamber, TLD, and Gafchromic EBT2 film in 3D-CRT, IMRT, and SBRT techniques for lung cancer

A. Fitriandini, W. E. Wibowo, Supriyanto

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

5 Citations (Scopus)

Abstract

This research was conducted by measuring point dose in the target area (lungs), heart, and spine using four dosimeters (PTW N30013, Exradin A16, TLD, and the Gafchromic EBT2 film). The measurement was performed in CIRS 002LFC thorax phantom. The main objective of this study was to compare the dosimetry of those different systems. Dose measurements performed only in a single fraction of irradiation. The measurements result shown that TLD has the least accuracy and precision. As the effect of volume averaging, ionization chamber reaches the discrepancy value up to -13.30% in the target area. EBT2 film has discrepancy value of <1% in the 3D-CRT and IMRT techniques. This dosimeter is proposed to be an appropriate alternative dosimeter to be used at point dose verification.

Original language	English
Article number	012006
Journal	Journal of Physics: Conference Series
Volume	694
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/694/1/012006
Publication status	Published - 24 Mar 2016
Event	13th South-East Asian Congress of Medical Physics, SEACOMP 2015 - Yogyakarta, Indonesia Duration: 10 Dec 2015 → 12 Dec 2015

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10.1088/1742-6596/694/1/012006

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title = "Comparison of dosimeter response: Ionization chamber, TLD, and Gafchromic EBT2 film in 3D-CRT, IMRT, and SBRT techniques for lung cancer",

abstract = "This research was conducted by measuring point dose in the target area (lungs), heart, and spine using four dosimeters (PTW N30013, Exradin A16, TLD, and the Gafchromic EBT2 film). The measurement was performed in CIRS 002LFC thorax phantom. The main objective of this study was to compare the dosimetry of those different systems. Dose measurements performed only in a single fraction of irradiation. The measurements result shown that TLD has the least accuracy and precision. As the effect of volume averaging, ionization chamber reaches the discrepancy value up to -13.30% in the target area. EBT2 film has discrepancy value of <1% in the 3D-CRT and IMRT techniques. This dosimeter is proposed to be an appropriate alternative dosimeter to be used at point dose verification.",

author = "A. Fitriandini and Wibowo, {W. E.} and Supriyanto",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 13th South-East Asian Congress of Medical Physics, SEACOMP 2015 ; Conference date: 10-12-2015 Through 12-12-2015",

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AU - Fitriandini, A.

AU - Wibowo, W. E.

AU - Supriyanto, null

N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2016/3/24

Y1 - 2016/3/24

N2 - This research was conducted by measuring point dose in the target area (lungs), heart, and spine using four dosimeters (PTW N30013, Exradin A16, TLD, and the Gafchromic EBT2 film). The measurement was performed in CIRS 002LFC thorax phantom. The main objective of this study was to compare the dosimetry of those different systems. Dose measurements performed only in a single fraction of irradiation. The measurements result shown that TLD has the least accuracy and precision. As the effect of volume averaging, ionization chamber reaches the discrepancy value up to -13.30% in the target area. EBT2 film has discrepancy value of <1% in the 3D-CRT and IMRT techniques. This dosimeter is proposed to be an appropriate alternative dosimeter to be used at point dose verification.

AB - This research was conducted by measuring point dose in the target area (lungs), heart, and spine using four dosimeters (PTW N30013, Exradin A16, TLD, and the Gafchromic EBT2 film). The measurement was performed in CIRS 002LFC thorax phantom. The main objective of this study was to compare the dosimetry of those different systems. Dose measurements performed only in a single fraction of irradiation. The measurements result shown that TLD has the least accuracy and precision. As the effect of volume averaging, ionization chamber reaches the discrepancy value up to -13.30% in the target area. EBT2 film has discrepancy value of <1% in the 3D-CRT and IMRT techniques. This dosimeter is proposed to be an appropriate alternative dosimeter to be used at point dose verification.

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JO - Journal of Physics: Conference Series

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Y2 - 10 December 2015 through 12 December 2015

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Comparison of dosimeter response: Ionization chamber, TLD, and Gafchromic EBT2 film in 3D-CRT, IMRT, and SBRT techniques for lung cancer

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