Proton-Beam Therapy Setup (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Proton-beam therapy at the Paul Scherrer Institute in Switzerland. Berkeley Lab is working with PSI and Varian Medical Systems to develop a new system with improved beam performance. Credit Center for Proton Therapy/Paul Scherrer Institute Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.