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An ion source for intense ribbon ion beams with breadths from 300mm to 2200mm and beyond is described. Representative beam currents for argon ions scale up with beam breadth at a rate of 1A per meter at 2 keV and up. Single-slot extraction optics work very well down to 750 eV with current derated only ~50%. Beam currents vary by species and energy in a similar manner to a Bernas or IHC source, so...
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