Influence of angular mismatch between pre- and post-irradiation scans for optical-CT gel readout

simulation based study

Yi Du, Xiangang Wang, Xincheng Xiang, Hao Wu, Yves De Deene

Research output: Contribution to journalConference paper

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Abstract

The pre- and post-irradiation scan strategy for optical-CT gel readout often turns out to be corrupted by angular mismatch between these two scans. In this study, we used computational simulations to investigate the influence of angular mismatch. Two phantoms are constructed: one cylindrical phantom with synthetic impurities and one elliptical phantom. The reconstructed results of angular mismatched pre- and post-data show that the dual-scan method is very sensitive to repositioning error, and positive-negative pair errors can be easily identified around impurities and phantom edges. From the simulation results, we believe that the angular mismatch should be less than 0.1 degree.

Original languageEnglish
Article number012021
Pages (from-to)1-5
Number of pages5
JournalJournal of Physics: Conference Series
Volume1305
Issue number1
DOIs
Publication statusPublished - 2019
Event10th International Conference on 3D Radiation Dosimetry - Kunshan, China
Duration: 16 Sep 201819 Sep 2018

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