Figure 2 Relativistic Electron Beam (REB) (IMAGE) Osaka University Caption Relativistic electron beam (REB) accelerated by high-intensity laser has a large divergence angle. The REB needs to be guided along the magnetic field lines to the compressed fuel core. Credit Osaka University 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.