Ion Beam Therapy

Scanned Ion Beam Therapy of Moving Targets with Beam Tracking

3.1 Proton and Heavy Ion Beam Therapy

Motivation Cancer is the second most frequent cause for disease in the developed countries. Every year, more than 1 million people in the European Union are diagnosed of having cancer. A general cure of cancer is not in sight because the term cancer stands for a large variety of diseases that can be characterised by an uncontrolled cell growth. Normally, cell growth is regulated by a number of ...

Gating for scanned ion beam therapy

In treatment of motion affected tumours by means of a scanned particle beam severe under and over dosage can occur due to the interplay effect. By using gated beam delivery effective target motion is reduced, but even for the residual motion the interplay effect can lead to unsatisfactory dose distributions. Furthermore, an appropriate motion monitoring system is essential since beam delivery h...

Impact of Various Beam Parameters on Lateral Scattering in Proton and Carbon-ion Therapy

Background: In radiation therapy with ion beams, lateral distributions of absorbed dose in the tissue are important. Heavy ion therapy, such as carbon-ion therapy, is a novel technique of high-precision external radiotherapy which has advantages over proton therapy in terms of dose locality and biological effectiveness.Methods: In this study, we used Monte Carlo method-based Geant4 toolkit to s...

Calculation of WER values of some dosimetric plastic materials applied at helium ion beam therapy

In this research, water equivalent ratios (WER) at helium ion beam energy ranging 25-250 MeV/u for four potential plastic dosimetric materials: polycarbonate (PC), polypropylene (PP), polymethyl methacrylate (PMMA), and paraffin have been calculated using MCNPX Monte Carlo code. Among studied materials, PC and PP with 0.979 and 1.177 show minimum and maximum differences with water respectively....