Proton therapy at the Paul Scherrer Institute
The aim of the radiotherapy system provided at the Paul Scherrer Institute (PSI) is to use charged particles, called protons, to destroy cancerous tissue. Protons are particularly suited to this task because they exert their greatest impact deep within a patient’s body, inside the tumour itself. Thanks to an irradiation technique that is the only one of its kind world-wide, the innovative proton therapy facility at PSI is able to adapt the radiation dose extremely accurately to the shape of a tumour (which is usually irregular). As a result, this technique is able to safeguard healthy tissue better than the conventional modern radiotherapy techniques.