Evaluation of Polymerization Dynamics in Dosimetric Gels (POLYD)

Project no.: PP59/2010

Project description:

The essence of modern radiation medicine is the processes of energy transmission and absorption in biological tissue, which allow to use ionizing radiation for diagnosis and treatment of diseases. Computer aided modelling is commonly used for theoretical planning of procedures, but dosimetric control is essential for quality assurance of the treatment procedures. Dosimeters based on various physical principles can be used to verify the resulting radiation treatment plan, but only gel dosimetry allows for an evaluation of the 3D distribution of doses. Principle of the dosimetric gels is based on the change of the polymerization degree, of the gel when exposed to ionizing radiation, which is proportional to the absorbed dose. This dosimetric method also reduces measurement uncertainty, since the composition of the dosimetric gels is close to the biological tissue in terms of radiation absorption. Readout of the dosimetric gels can be performed by different methods, which evaluate their physical properties – optical density, physical density, X-ray absorption, proton density. This project proposes the development of a unique measurement methodology that combines hardware that allows the study of changes in the optical properties of dosimetric gels in real-time, including the irradiation procedure itself, and a data processing algorithm based on the elements of artificial intelligence.

Project funding:

KTU Science and Innovation Fund

Period of project implementation: 2020-04-14 - 2020-12-31

Project coordinator: Kaunas University of Technology

Benas Gabrielis Urbonavičius

2020 - 2020

Department of Physics, Faculty of Mathematics and Natural Sciences

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