Heidelberg 2022 – wissenschaftliches Programm

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ST: Fachverband Strahlen- und Medizinphysik

ST 4: Radiation monitoring and dosimetry I

ST 4.5: Vortrag

Dienstag, 22. März 2022, 15:25–15:40, ST-H4

Monte Carlo feasibility study for neutron radiography in proton therapy — •Hannah Rotgeri, Marius Hötting, Kevin Kröninger, Alina Landmann, and Jens Weingarten — TU Dortmund University, Department of Physics

Due to their depth dose dose distribution, proton beams used in cancer treatment can reduce damage to healthy tissue when compared to irradiation with photons. Neutrons, and other secondary particles, are produced during proton therapy, causing dose deposition outside the treatment field. Being unavoidable, the feasibility for using these neutrons for imaging during the treatment is studied in the context of a master thesis.

The study is performed in the Monte Carlo framework Geant4. It is investigated whether different energy ranges of neutrons are suitable for radiography, due to the different ways they can be detected. This talk will present the recent results of this study. This includes the investigation of different angles of the detector with respect to the proton beam. Finally it will be shown whether the different materials found in a human body can be distinguished.