Particles against cancer

May 17, 2022, 5:10 PM
20m

Speaker

Akos Sudar (MTA Wigner FK)

Description

Proton therapy is a novel treatment against cancer, thanks to its advantageous deep dose distribution
containing the so-called Bragg-peak, just before the stopping position of the protons. To focus this peak
into the tumor volume is a big challenge, as it requires the determination of the deep dose distribution
for every beam during dose planning. This incoming information of the deep dose curve calculation is
the distribution of the relative stopping power (RSP). The more accurate the RSP map the smaller safety
margin is enough to avoid the inadequate dose in the tumor. The goal of proton imaging is to provide an
accurate and reliable tool to take the RSP map, which measures the independent and precise energy
and direction of protons. One of the most promising solutions is a range counter concept build of silicon
pixel detectors. This type of detector is developed by the Bergen pCT collaboration, which is determined
to reduce the imaging duration into a range that is acceptable for clinical use. In this presentation I will
highlight the problem of three-dimensional reconstruction of the RSP map from independent proton
histories.

Presentation materials