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

Research output: Contribution to journalConference article

4 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 languageEnglish
Article number012006
JournalJournal of Physics: Conference Series
Volume694
Issue number1
DOIs
Publication statusPublished - 24 Mar 2016
Event13th South-East Asian Congress of Medical Physics, SEACOMP 2015 - Yogyakarta, Indonesia
Duration: 10 Dec 201512 Dec 2015

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