Measurements of Charge-changing Cross Sections for Therapeutic Ion Beams

摘要

We measured the survival of 290, 400 MeV/u ~(12)C and 400, 600 MeV/u ~(20)Ne beams as a function of the target thickness using ΔE-type plastic scintillators. The total charge-changing cross sections of several target materials for those beams were deduced from the obtained survival data. Although the obtained cross section data agree well with the other experiments, they showed disagreement with the model prediction which was used for the depth-dose calculations.