Effect of scanning parameters on dose-response of radiochromic films irradiated with photon and electron beams

Tagiling, N, Rashid, R, Azhan, S, Dollah, N, Geso, M and Rahman, W 2018, 'Effect of scanning parameters on dose-response of radiochromic films irradiated with photon and electron beams', Heliyon, vol. 4, no. 10, pp. 1-17.


Document type: Journal Article
Collection: Journal Articles

Title Effect of scanning parameters on dose-response of radiochromic films irradiated with photon and electron beams
Author(s) Tagiling, N
Rashid, R
Azhan, S
Dollah, N
Geso, M
Rahman, W
Year 2018
Journal name Heliyon
Volume number 4
Issue number 10
Start page 1
End page 17
Total pages 17
Publisher Elsevier Ltd
Abstract Proper dosimetry settings are crucial in radiotherapy to ensure accurate radiation dose delivery. This work evaluated scanning parameters as affecting factors in reading the dose-response of EBT2 and EBT3 radiochromic films (RCFs) irradiated with clinical photon and electron beams. The RCFs were digitised using Epson� Expression� 10000XL flatbed scanner and image analyses of net optical density (netOD) were conducted using five scanning parameters i.e. film type, resolution, image bit depth, colour to grayscale transformation and image inversion. The results showed that increasing spatial resolution and deepening colour depth did not improve film sensitivity, while grayscale scanning caused sensitivity reduction below than that detected in the Red-channel. It is also evident that invert and colour negative film type selection negated netOD values, hence unsuitable for scanning RCFs. In conclusion, choosing appropriate scanning parameters are important to maintain preciseness and reproducibility in films dosimetry.
Subject Medical Physics
Keyword(s) Nuclear physics
DOI - identifier 10.1016/j.heliyon.2018.e00864
Copyright notice © 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license
ISSN 2405-8440
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