Jared Kofron, a graduate student on the Project 8 neutrino experiment, tuning the tandem Van de Graaff accelerator from the control console. He is running a deuteron beam in tandem mode with the terminal at 8.8 MV. The negative ions leave the injector deck with an energy of 250 keV. The negative deuterons pick up 8.8 MeV on their way to the terminal where two electrons are stripped off. The positive deuterons pick up another 8.8 MeV on their trip away from the terminal. The total beam energy is the sum of the three, or 17.85 MeV.