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Validation d'un dosimètre patient temps réel basé sur fibre optique pour la tomodensitométrie X à l'aide de simulations Monte Carlo

Abstract : This work focuses on the simulation of CT exam, and aims to validate a new real-time patient dose measurement method that uses a scintillating optical fiber. First, we studied our dosimeter’s energy response, and we showed that it was close to the response of the ion chambers currently used. Then, we successfully modeled a scanner, and found that during the exam, patient dose and measured dose were affected differently by parameters such as the table height, the patients positioning or the patients morphology. However, when accounting for such parameters, it was possible to compute the dose delivered to the patient during an exam using the scintillating fiber measurement. We consider that when coupled with monte-carlo simulations, this measurement could be used to estimate accurately the organ dose delivered during an exam.
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https://tel.archives-ouvertes.fr/tel-03162815
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Submitted on : Monday, March 8, 2021 - 5:29:19 PM
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Gillet_Pierre_2018_ED182.pdf
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  • HAL Id : tel-03162815, version 1

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Pierre Gillet. Validation d'un dosimètre patient temps réel basé sur fibre optique pour la tomodensitométrie X à l'aide de simulations Monte Carlo. Physique [physics]. Université de Strasbourg, 2018. Français. ⟨NNT : 2018STRAE025⟩. ⟨tel-03162815⟩

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