Radiation therapy is a cancer treatment technique that uses particle radiation to either kill or control the growth of malignant cells. One of the most promising radiotherapy techniques is hadrontherapy, which uses heavy particles, such as protons and carbon ions, to offer both physical and biological advantages in the treatment of localized tumors. The heavy charged particles have the peculiar characteristic of depositing a large part of their energy at a controlled depth, resulting in the characteristic Bragg's peak. This leads to highly accurate targeting of tumors while sparing the surrounding healthy tissues. Due to the localized energy deposition of charged particles, high precision is demanded.