Laura Saxton, NSCL accelerator engineer, tests a multi-cell superconducting radio frequency (SRF) cavity prototype designed and built by National Superconducting Cyclotron Laboratory staff as part of the development for the Proton Driver linear accelerator for Fermilab. When a current project to build a new low-energy linear accelerator is completed July 2010, NSCL will be able to produce reaccelerated beams of rare isotopes not accessible at any other facilities in the world. Credit: Michigan State University