Nondestructive heavy metal jet profilometer for high power beams

Te "scanning wire" is the most common method of beam profile measurement, where thin wire is transported across the beam and secondary electrons\´ or radiation are detected. It cannot be used for beams with high power density because the wire cannot sustain a heat load. A possible solution is to substitute the wire by a low-density jet of a metal vapor. Profilometers of this type were successfully used in ion storage rings, but background electrons from residual gas ionization can pose a limit in a less clean vacuum environment. An alternative configuration of the device based on the separation of the jet material ions from the background is suggested and analyzed. The technical feasibility for the SNS MEBT parameters is demonstrated