The particle accelerator at Hope College is a 1.7 MV tandem accelerator that is capable of creating hydrogen, helium, nitrogen, and oxygen ion beams. This week major maintenance was scheduled to determine the location of a small sulphur-hexafluoride leak on the main tank. With creative vacuum leak chasing techniques, we determined that the location of the leak was a worn out gasket on the stripper-gas control drive rod feedthrough (as pictured below – right). Also shown below (left) is the opened terminal and accelerating tube.