We examine the feasibility of creating an electric space‐charge field of order 109 V/m using radial and axial focussing on a pulsed beam of 200 MeV H− ions. When a bunch of H− ions is focussed into a disc‐shaped concentration, the electric field is uniform and the electrons are shed abruptly, leaving a neutral beam of H0. Subsequent stripping of the H0 discs by a carbon foil produces highly ordered oscillating plasma bunches which can act as an electrode‐less high gradient accelerator structure.