Physicists Shrink Particle Accelerator (IMAGE) Deutsches Elektronen-Synchrotron DESY Caption Terahertz accelerator modules easily fit into two fingers. Credit Credit: DESY/Heiner Mueller-Elsner Usage Restrictions Free for use by the media if reporting on the related paper 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.