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For plasma heating and stabilization in open magnetic traps, the high-power neutral beam injector with tunable beam energy was developed at Budker Institute of Nuclear Physics. The initial energy of the beam particles is 15 keV, and it can be subsequently increased to 40 keV. In this case, the neutral beam power increases from 1.7 to 3.5 MW. A distinctive feature of this injector is the fact that, as the accelerating voltage considerably changes, the ion beam current remains constant. The injectors based on the ion sources with tunable energy are used in experiments at the C-2W open trap (USA).

A ГИД-25 pulse generator with a 25-J capacitive storage is designed as a pulse power source of lenses and correctors of transportation channels of electron and positron beams from the storage-cooler of the ВЭПП-5 injector system to booster storages of the ВЭПП-4 and ВЭПП-2000 systems. The generator consists of a 100-μF storage capacitor, a charging unit, and a thyristor switch, which switches the capacitor to the load. The generator ensures the precision charging of the storage capacitors up to 15–700 V of any polarity and switching it to the winding of the magnetic element of the channel. The capacitor charging error is ≤0.01% in all working voltage range. The pulse repetition rate is 1 Hz.