The SIS18 can accelerate ions of all natural chemical elements of the periodic table—starting from the light hydrogen up to the heavy uranium. 270,000 kilometers per second: Ions coming from the linear [...] the SIS18. 80,000 volts: Ions in the SIS18 are accelerated by a voltage of 80,000 volts in the accelerator structures during every circulation. 416,000 circulations: The ions are accelerated in one second [...] accelerator as much medium-charged uranium ions can be accelerated as at the SIS18. one billionth Pascal: An ultra-high vacuum is a prerequisite for the acceleration. So ions almost never collide with particles