APPROACH CONCERNING STABILITY OF GAS PRESSURE IN ION SOURCE

The influence of gas pressure on stability of an ion source operation isdiscussed Experiments on the gas pressure stability of the pulsed duoplasmatron mounted in the 10 MeV proton linac are made. When hydrogensupply for the pulsed duoplasmatron by an ultra-pure hydrogen generator incorpo-rated with the mass flow controller, or with the gas steady-pressure valve, orwith both of them, the results of the experiment is satisfactory. The pressurestability rise from 8% to<1%. The pressure is very stable when the pulsedduoplasmatron operate continuously.