TY  - JOUR
AU  - Šećerov, Bojana Lj.
AU  - Dakovic, Marko
AU  - Borojević, Nenad
AU  - Bačić, Goran
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4250
AB  - Various forms of Gafchromic films that are increasingly used for dosimetry in radiotherapy offer the prospect of reproducible and accurate high-resolution two-dimensional dose measurements, but there are many unresolved issues regarding the optimal choice of densitometric procedure used for the films optical density (OD) readout. There are conflicting requirements for scanners (sensitivity, availability, price) and commercial document scanners appears to be a reasonable option, hence we analyzed the measured sublinear dose response of these scanners. Using measured film absorption spectra we were able to make quantitative distinction between various factors affecting the sublinearity and to demonstrate that the dose response curve can be predicted for any selected light source used for scanning. We also used the commercial narrow bandpass filters in conjunction with document scanners to investigate whether such an inexpensive option can improve their sensitivity, but results were not encouraging. Finally, we analyzed the suitability of proposed fitting equations for the calibration of the dose response and found that their reliability largely depends on the dose range used for the calibration. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - Dosimetry using HS GafChromic films the influence of readout light on sensitivity of dosimetry
VL  - 633
IS  - 1
SP  - 66
EP  - 71
DO  - 10.1016/j.nima.2010.12.234
ER  - 

@article{
author = "Šećerov, Bojana Lj. and Dakovic, Marko and Borojević, Nenad and Bačić, Goran",
year = "2011",
abstract = "Various forms of Gafchromic films that are increasingly used for dosimetry in radiotherapy offer the prospect of reproducible and accurate high-resolution two-dimensional dose measurements, but there are many unresolved issues regarding the optimal choice of densitometric procedure used for the films optical density (OD) readout. There are conflicting requirements for scanners (sensitivity, availability, price) and commercial document scanners appears to be a reasonable option, hence we analyzed the measured sublinear dose response of these scanners. Using measured film absorption spectra we were able to make quantitative distinction between various factors affecting the sublinearity and to demonstrate that the dose response curve can be predicted for any selected light source used for scanning. We also used the commercial narrow bandpass filters in conjunction with document scanners to investigate whether such an inexpensive option can improve their sensitivity, but results were not encouraging. Finally, we analyzed the suitability of proposed fitting equations for the calibration of the dose response and found that their reliability largely depends on the dose range used for the calibration. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "Dosimetry using HS GafChromic films the influence of readout light on sensitivity of dosimetry",
volume = "633",
number = "1",
pages = "66-71",
doi = "10.1016/j.nima.2010.12.234"
}

Šećerov, B. Lj., Dakovic, M., Borojević, N.,& Bačić, G.. (2011). Dosimetry using HS GafChromic films the influence of readout light on sensitivity of dosimetry. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 633(1), 66-71.
https://doi.org/10.1016/j.nima.2010.12.234

Šećerov BL, Dakovic M, Borojević N, Bačić G. Dosimetry using HS GafChromic films the influence of readout light on sensitivity of dosimetry. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2011;633(1):66-71.
doi:10.1016/j.nima.2010.12.234 .

Šećerov, Bojana Lj., Dakovic, Marko, Borojević, Nenad, Bačić, Goran, "Dosimetry using HS GafChromic films the influence of readout light on sensitivity of dosimetry" in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 633, no. 1 (2011):66-71,
https://doi.org/10.1016/j.nima.2010.12.234 . .